LUCA Forms, Letters, User Guides, and other Items

Local Update of Census Addresses (LUCA) Program

19. LUCA_UserGuide_OPT3_SG

LUCA Forms, Letters, User Guides, and other Items

OMB: 0607-0795

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2010 Decennial Census
Local Update of Census Addresses (LUCA) Program
User Guide for State Governments
Option 3-Non-Title 13 Local Address List Submission

TABLE OF CONTENTS

Chapter 1
Introduction to the 2010 Decennial Census Local Update of Census
Addresses (LUCA) Program

1

The 2010 Decennial Census Local Update of Census Addresses (LUCA) Program.................. 1
Background .................................................................................................................................. 2
The Census Address List Improvement Act...........................................................................2
The Census Bureau’s Master Address File (MAF) ................................................................2
The Topologically Integrated Geographic Encoding and Referencing (TIGER®)
Database..........................................................................................................................2
LUCA Program Responsibilities................................................................................................... 3
Census Bureau’s LUCA Program Responsibilities ................................................................3
Participant’s LUCA Program Responsibilities ........................................................................3
Training and Technical Support ................................................................................................... 4
Schedule ...................................................................................................................................... 4
Respondent Burden ..................................................................................................................... 5

Chapter 2
Before You Begin Your Review

6

Introduction .................................................................................................................................. 6
What is a Housing Unit?............................................................................................................... 6
What are Group Quarters?........................................................................................................... 7
Unacceptable Types of Housing Units and Group Quarters........................................................ 7
Census Bureau Addresses .......................................................................................................... 8
Residential and Nonresidential Addresses ............................................................................8
Address Formats ....................................................................................................................8
City-Style Address Format .................................................................................................. 8
Noncity-Style Address Format ............................................................................................ 8
Census Tract................................................................................................................................ 9
Census Block ............................................................................................................................... 9
What is Geocoding?................................................................................................................... 10
Strategies for Conducting the LUCA Program Review .............................................................. 10
Address Sources........................................................................................................................ 11

Chapter 3
The LUCA Program’s Computer-Readable Address Count List

12

Introduction ................................................................................................................................ 12
The Address Count List Files..................................................................................................... 12
Locating the Name of a County or Count Equivalent Using the County Code ....................13
Software Requirements.............................................................................................................. 13
Importing the Address Count List Files ................................................................................14
The File Format.......................................................................................................................... 14
Example – Address Count List File Record Layout .......................................................... 16
Example – Pipe-delimited Address Count List File........................................................... 17

i

Chapter 4
The Census Bureau’s Predefined Computer-Readable Address List File
Format

18

The Predefined Computer-Readable Address List File Format................................................. 18
The Address List Template Record Layout File ...................................................................19

Chapter 5
The Census Bureau Shapefiles

22

Introduction ................................................................................................................................ 22
Shapefiles .................................................................................................................................. 22
Submitting Shapefile Feature Information.................................................................................. 22
The Census Bureau’s Shapefile Coordinate System and Projection Information ...............23
General File Setup Guidelines .............................................................................................23
Changing Our Coordinate System to Match Yours..............................................................23
Feature Information ..............................................................................................................24
Updating the Feature Shapefile ...........................................................................................24
Edges Layer Data Dictionary ...............................................................................................24
Census Feature Classification MTFCC to CFCC Crosswalk ...............................................26
Change Type Codes for Feature Corrections ......................................................................27
Examples .......................................................................................................................... 28
1. Adding a Feature to the Edges Layer .......................................................................28
2. Correcting a Feature Name.......................................................................................28
3. Procedure for changing the MTFCC of an existing feature ......................................28
4. Deleting a feature......................................................................................................28
5. Moving a street..........................................................................................................29
Metadata .................................................................................................................................... 31
Metadata Requirements .......................................................................................................31
Digital File Submission............................................................................................................... 32

Chapter 6
Submitting Your LUCA Program Updates

33

Submitting LUCA Program Updates .......................................................................................... 33
Preparing the Shapefiles for Submission .............................................................................33
Shipping Your LUCA Materials .................................................................................................. 34

APPENDICES
Appendix A
Physical Location Description and Street Type Abbreviation Examples ............................. 35
Appendix B
Unit Designation Abbreviation Examples ............................................................................. 36
Appendix C
Inventory Form ..................................................................................................................... 37

Glossary

38

Index

44

ii

TABLE OF FIGURES
Figure 3.1:
Figure 3.2:
Figure 3.3:
Figure 5.1:
Figure 5.2:
Figure 5.3:
Figure 5.4:
Figure 5.5:

Address Count List File Record Layout ......................................................................16
Address Count List File “Total Row” Layout ...............................................................16
Pipe-delimited Address Count List File.......................................................................17
Edges Layer Data Dictionary ......................................................................................24
Census Feature Classification MTFCC to CFCC Crosswalk .....................................26
Change Type Codes for Feature Corrections.............................................................27
Example Attribute Table Updates...............................................................................29
Digital Road Correction Example ...............................................................................30

iii

CHAPTER 1
INTRODUCTION TO THE 2010 DECENNIAL CENSUS LOCAL UPDATE OF CENSUS
ADDRESSES (LUCA) PROGRAM
The 2010 Decennial Census Local Update of Census Addresses (LUCA) Program
Background
The Census Address List Improvement Act
The Census Bureau’s Master Address File (MAF)
The Topologically Integrated Geographic Encoding and Referencing (TIGER®)
Database
LUCA Program Responsibilities
Census Bureau’s LUCA Responsibilities
Participant’s LUCA Responsibilities
Training and Technical Support
Schedule
Respondent Burden

The 2010 Decennial Census Local Update of Census Addresses (LUCA)
Program

The Local Update of Census Addresses (LUCA) Program is an integral part of
the 2010 Census activities that utilizes the expertise of tribal, state, and local
governments to improve the accuracy and completeness of the address list
used to take the census.
The U.S. Census Bureau invited the Governor (Chief Executive/Highest
Elected Official), of your state to participate in this program. Your state
selected Option 3, Non-Title 13 Local Address List Submission. This option
allows you to:
•

Review the Census Bureau’s address count list for your state. This list
is for reference purposes only.

•

Submit your state address list file of city-style1 single unit or multiunit
structure and group quarters2residential addresses in a predefined
Census Bureau computer-readable format. The Census Bureau will
only accept local address file (city-style addresses only) in the
predefined format as explained in Chapter 4.

•

Identify any additions, deletions, or corrections to roads, or other
physical features by submitting an updated version of the digital map
file (shapefile) provided by the Census Bureau.

1

The term city-style address is defined as an address that consists of a house number and street or road name, for
example, 201 Main Street. However, the address may or may not be used for the delivery of mail, and may include
apartment numbers/designations or similar identifiers. See Chapter 2 for a complete definition.
2
A group quarters is a place where people live or stay that is normally owned or managed by an entity or organization
providing housing and/or services for the residents. See Chapter 2 for a complete definition.

Option 3-Non-Title 13 Local Address List Submission State

1

Chapter 1: Introduction to the 2010 Decennial Census Local Update of Census
Addresses (LUCA) Program

Background
The Census Address List Improvement Act

The Census Address List Improvement Act of 1994 (Public Law 103-430)
strengthened the Census Bureau’s partnership capabilities with tribal, state,
and local governments by expanding the methods the Census Bureau could use
to exchange address information. Designed to improve the accuracy of the
Census Bureau’s address list, the Act authorized the Census Bureau to provide
individual addresses to officials of tribal, state, and local governments who
agreed to conditions of confidentiality. Census 2000 marked the first
decennial census for which the Census Bureau could provide its address list
for review to governments that signed the required confidentiality agreement.
The Census Bureau’s Master Address File (MAF)

In preparation for Census 2000, the Census Bureau created the Master Address
File (MAF) by merging the 1990 Address Control File3 with the latest version
of the U.S. Postal Service’s (USPS) Delivery Sequence File4 (DSF). The
MAF is a nationwide database of all addresses used to support many of the
Census Bureau’s operations. Besides containing mailing addresses and ZIP
Codes, an address record in the MAF also contains geographic information
about the location of addresses. In areas where there are noncity-style
addresses (e.g., rural route or post office box number), the address record may
contain additional information such as a location description.
The Topologically Integrated Geographic Encoding and Referencing
(TIGER®) Database

Address records in the MAF are linked to feature segments in the
Topologically Integrated Geographic Encoding and Referencing (TIGER®)
database. The TIGER® database includes the geographic coordinates and
names of all streets, water features, and other linear features, and boundaries
for all jurisdictions and statistical areas (census tracts5, census blocks6, etc.)
used to tabulate decennial census data. The TIGER® database also includes
address ranges7 along streets that have city-style addresses and the hierarchy of
3

The 1990 residential address list used to label questionnaires, control the mail response check-in operation, and
determine the nonresponse follow-up workload.
4
A computerized file containing all delivery point addresses serviced by the U.S. Postal Service (USPS). The USPS
updates the DSF continuously as its letter carriers identify addresses for new delivery points or changes in the status of
existing addresses.
5
A census tract is a small, relatively permanent statistical division of a county or statistically equivalent entity,
delineated for the purpose of presenting Census Bureau statistical data.
6
A census block is a geographic area bounded by visible features, such as streets, roads, streams, and railroad tracks,
and invisible features, such as the boundaries of governmental units and other legal entities. Census blocks are the
smallest area for which the Census Bureau collects and tabulates statistical information.
7
Address ranges are the lowest and highest address numbers used to identify structures along each side of a street
segment that has city-style addresses. Usually one side of the street has even address numbers and the other side has
odd address numbers.

2

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Chapter 1: Introduction to the 2010 Decennial Census Local Update of Census
Addresses (LUCA) Program

census geographic area codes from the state level down to individual census
blocks (www.census.gov/geo/www/geodiagram.html). By linking address
records in the MAF to the TIGER® database, the Census Bureau is able to
identify street segments along which an individual address exists and
determine the geographic code that applies to that address.
The Census Bureau’s Geography Division regularly updates the MAF/TIGER
database from various sources. In addition to the USPS DSF, other sources of
updates include current household surveys, special censuses, and local sources.
LUCA Program Responsibilities
Census Bureau’s LUCA Program Responsibilities

The Census Bureau’s LUCA program responsibilities include:
•

Provide training to LUCA program participants.

•

Provide the necessary materials to participants.

•

Provide technical assistance.

•

Process updates submitted by LUCA participants.

•

Conduct a 100% Address Canvassing (field check) operation. The
Census Bureau will visit each census block within your state during
this operation to update our address list and validate your LUCA
submissions.

•

Provide feedback materials for your review.

Participant’s LUCA Program Responsibilities

As a participant in the LUCA program, your responsibilities include:
•

Select your LUCA state liaison and reviewers.

•

Sign and return the Registration Form.

•

Complete and return the Participation Option/GIS Preference/Coverage
Selection Form.

•

Ensure that everyone working on the LUCA program understands the
procedures for participating in the program and Census Bureau
terminology and concepts.

•

Ensure the receipt of all required materials for the LUCA program
review.

•

Prepare a strategy to conduct the review of LUCA materials.

•

Within 120 calendar days of receiving your LUCA materials, complete
your address list review and return your updated materials to the
Census Bureau.

•

Review the Census Bureau’s detailed feedback materials.

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Chapter 1: Introduction to the 2010 Decennial Census Local Update of Census
Addresses (LUCA) Program

Training and Technical Support

Census Bureau staff will conduct LUCA training workshops beginning in
August of 2007. These training workshops will provide you with hands-on
experience in using the 2010 Decennial Census LUCA Program materials. In
addition, computer-based training (CBT) is available on the LUCA Program
CBT CD-ROM and the LUCA Web site at
.
Should you need additional information, please contact your Census
Bureau Regional Office toll free at 1-866-511-LUCA (5822) or for
technical assistance about computer applications including the
MAF/TIGER Partnership Software (MTPS), please call the Help Desk
toll free at 1-866-919- LUCA (5822).
Schedule

4

January–February 2007

LUCA advance notification letters and
information materials were mailed to the
Governor (Chief Executive/Highest Elected
Official) and other contacts in your state
government.

March–June 2007

LUCA Promotional Workshops were
conducted.

August 2007

LUCA invitation letters and registration
materials were mailed to the Governor (Chief
Executive/Highest Elected Official) and a
courtesy copy to other contacts in your state
government.

August 2007–January 2008

Invited governments register for LUCA and the
Census Bureau ships LUCA review materials to
each participating government.

August 2007

LUCA Training Workshops begin.

September 2007–March 2008

LUCA Option 3 participants review the Census
Bureau’s address count list and submit their
local address list file to their Census Bureau’s
Regional Office within 120 calendar days from
the receipt of materials.

October 2007–October 2008

Census Bureau reviews participant’s LUCA
submissions and updates the MAF/TIGER
database.

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Chapter 1: Introduction to the 2010 Decennial Census Local Update of Census
Addresses (LUCA) Program

November 2008–June 2009

Census Bureau prepares for and conducts an
Address Canvassing Operation using GPSequipped hand held computers.

August 2009–October 2009

Census Bureau provides feedback materials to
participants showing how we processed each
participant’s LUCA submissions.

September 2009–December 2009

Participants review feedback materials and
Option 1 and Option 2 participants have the
opportunity to appeal the results to the LUCA
Appeals Office.

September 2009–January 2010

LUCA Appeals Office reviews and adjudicates
Option 1 and Option 2 appeals.

Respondent Burden

The Census Bureau estimates that it will take between 105 and 1,575 hours to
complete the LUCA review depending on the number of addresses and rate of
address growth and change. This includes the time needed to read the
invitation materials and complete the registration forms, and upon receipt of
the LUCA materials, to read the instructions, assemble and review the LUCA
materials, and provide updates.
Please send comments regarding this burden estimate or any other aspect of
this collection of information, including suggestions for reducing this burden
to:
Paperwork Project 0607-0795
4600 Silver Hill Road, Room 3K138
Washington, D.C. 20233
Or you may e-mail comments to ; use "Paperwork
Project 0607-0795" as the subject. Please include a copy of your message
addressed to .
Under the paperwork Reduction Act, the Census Bureau cannot ask you to
respond to a collection of information unless it displays a currently valid
Office of Management and Budget (OMB) control number. The OMB
number is found in the upper right corner of each LUCA form.

Option 3-Non-Title 13 Local Address List Submission State

5

CHAPTER 2
BEFORE YOU BEGIN YOUR REVIEW
Introduction
What is a Housing Unit?
What are Group Quarters?
Unacceptable Types of Housing Units and Group Quarters
Census Bureau Addresses
Census Tract
Census Block
What is Geocoding?
Strategies for Conducting the LUCA Program Review
State-Level Address Sources

Introduction

Chapter 2 explains some of the terms and concepts used by the Census Bureau
and recommended strategies for your LUCA review. Refer to the Glossary or
visit the Census Bureau’s Web site at  for additional terms
and definitions.
What is a Housing Unit?

A single-family house, townhouse, mobile home, trailer, apartment, group of
rooms, or a single room occupied as a separate living quarters or, if vacant,
intended for occupancy as a separate living quarters. A separate living
quarters is one in which one or more occupants (or intended occupants, if
vacant) live separate from any other individual(s) in the building and have
direct access to the living quarters without going through another living
quarters, such as from outside the building or through a common hall.
The following types of housing units are acceptable and should be included on
your address list that you submit to the Census Bureau:
•
•
•
•

6

Houses, including townhouses, condominiums, and apartments.
Living quarters within an otherwise nonresidential structure such as an
apartment within a church, school, or business.
Mobile homes or trailers occupied as separate living quarters, or if
vacant, intended for occupancy as separate living quarters.
Any housing units under construction that will be habitable (closed to
the elements with final roof, windows, and doors) on Census Day,
April 1, 2010.

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Chapter 2: Before You Begin Your Review

What are Group Quarters?

A place where people live or stay, in a group living arrangement, that is
owned or managed by an entity or organization providing housing and/or
services for the residents. This is not a typical household-type living
arrangement. These services may include custodial or medical care as well
as other types of assistance, and residency is commonly restricted to those
receiving these services. People living in group quarters are usually not
related to each other.
The following types of group quarters are acceptable and should be included
on your address list that you submit to the Census Bureau:
•
•
•
•
•
•
•
•
•
•

Correctional facilities.
Juvenile facilities.
Nursing homes.
Hospitals with long-term care facilities.
College or university dormitories, fraternities, sororities.
Dormitories for workers.
Religious group quarters.
Shelters.
Group homes.
Any group quarters under construction that will be habitable (closed to
the elements with final roof, windows, and doors) on Census Day,
April 1, 2010.

Note: Housing units and group quarters can exist within the same structure.
Unacceptable Types of Housing Units and Group Quarters

Exclude the following unacceptable types of housing units and group quarters
addresses from your address list:
•
•
•
•
•
•

Condemned or scheduled for demolition.
Being converted or remodeled for nonresidential purposes.
Used solely for nonresidential storage.
Used solely as offices or businesses in which no one is living.
Used solely for ceremonial purposes.
Any units under construction that will not be habitable (closed to the
elements with final roof, windows, and doors) on Census Day,
April 1, 2010.

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Chapter 2: Before You Begin Your Review

Census Bureau Addresses
Residential and Nonresidential Addresses

The Census Bureau divides all addresses in two use types, residential and
nonresidential. Residential addresses are addresses of housing units and/or
group quarters where one or more people could live. Nonresidential addresses
are addresses of a structure or unit within a structure that do not serve as a
residence, such as commercial establishments, schools, government offices,
and churches.
Some structures can contain both residential and nonresidential units, even
though they have a single address such as an apartment over a store or a home
with an office.
Address Formats
City-Style Address Format

The Census Bureau refers to housing units and group quarters addresses
that have a house number and street name address, for example, 212 Elm
Street or 137 Clark Ct., Apt. 316, as city-style addresses. In some
instances, the house number may also include an alpha character such as
35A or W9254. These addresses are used for mailing or to provide
location for emergency services, such as police, fire, and rescue (E-911
addresses).
City-style addresses for housing units in multiunit structures, such as
apartment buildings, contain a unit designator, for example, Apt 101 or
Suite D or a location designator such as “rear” or “basement.” (See
Appendix B, Unit Designation Abbreviations.) The Census Bureau and the
U.S. Postal Service treat these unit designators as part of the housing unit
address, and they are included in each affected census address record.
Noncity-Style Address Format

The Census Bureau classifies addresses that do not include a house
number and/or a street name as noncity-style addresses. Noncity-style
addresses also may not include a complete house number and street name
address. The majority of noncity-style addresses are located in the more
sparsely settled areas of the United States; however, they may exist in
small or medium sized towns as well. Frequently used noncity-style
mailing addresses include:
•
•
•
•
8

General delivery.
Rural route and box number.
Highway contract route and box number.
Post Office box only delivery.

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Chapter 2: Before You Begin Your Review

Noncity-style addresses often do not follow any numeric sequence, and
may not be associated with the name of the street or highway on which
they are located. For this reason, the Census Bureau uses different
methods to compile the list of addresses for inclusion into the address list,
such as location descriptions (BRICK HSE w/ATTACHED GARAGE ON
RIGHT), structure points (geographic coordinates), and census geographic
codes (state code, county code, census tract number, census block
number).
Census Tract

Census tracts are small, relatively permanent statistical subdivisions of a
county or statistically equivalent entity, delineated for presenting Census
Bureau statistical data.
The proposed criteria for census tracts for the 2010 Census is that they contain
a minimum of 1,200 people with an optimal population of 4,000.
Census tract boundaries are delineated with the intention of being stable over
many decades, so they generally follow relatively permanent visible features.
However, they may follow governmental unit boundaries and other nonvisible features in some instances. Census tract boundaries never cross state
or county (or statistically equivalent entity) boundaries.
Each census tract is uniquely numbered within a county and contains
numerous census blocks. Census tract numbers contain up to a 4-digit
number followed by a decimal point and a 2-digit number for suffixed tracts,
e.g., 1234.01. For census tracts without a suffix, the number will contain a
period with zero fill, e.g., 4567.00. Leading zeros are not shown on Census
Bureau materials.
Note: When using the Census Bureau shapefiles to geocode an address to a
Census Tract number, use the Tractlabel attribute field on the curtracts
(current tracts) shapefile.
Census Block

A census block is an area bounded by visible features such as streets, roads,
streams, and railroad tracks and non-visible features such as the boundaries of
governmental units and other legal entities. A block is the smallest
geographic area for which the Census Bureau collects and tabulates statistical
data.
Census blocks may look like a city block or may be large and irregularly
shaped, depending upon features. The boundary of a state or a county is
always a block boundary.
Census blocks are numbered within census tracts and are unique to the census
tract to which they belong. Census block numbers contain a 4-digit number,
Option 3-Non-Title 13 Local Address List Submission State

9

Chapter 2: Before You Begin Your Review

and may include a single alpha character suffix, reflecting a boundary change
or added features (e.g. 3001A and 3001B).
Note: The 2010 Decennial Census LUCA Program addresses are coded to
current census block/geography.
What is Geocoding?

In order to process your address submissions, the Census Bureau requires the
inclusion of census geographic code information. This link to census
geography is referred to as geocoding. Geocoding places an individual
address in its correct geographic location, which includes the correct state,
county, census tract, and census block codes.
Because the Census Bureau counts people where they live, census geographic
code information or geocodes support the systematic collection of data that
allows Census enumerators to locate an address. They are also important in
allocating data from questionnaire responses to the correct location. You
must include census geographic code information for the Census Bureau to
process your address submissions. The Census Bureau will not accept
addresses without census geographic codes (geocodes) including the state,
county, census tract, and census block codes.
Note: When using the Census Bureau shapefiles to geocode an address to a
Census Tract number, use the Tractlabel attribute field on the curtracts
(current tracts) shapefile.
You can find these census geographic codes on your LUCA materials.
Strategies for Conducting the LUCA Program Review

You must decide for yourself how to conduct the LUCA program review.
Consider your available time, the information you have readily available, and
the staff and computer resources you have. If resources are limited, the
Census Bureau recommends focusing on areas where addresses are more
likely to be missed or incorrect. For example:
•
•
•
•
•
•
•
•

10

Areas of new housing construction.
E-911 address conversion areas.
Areas that have changed from single-family homes to multifamily
homes and vice versa.
Warehouses that have been converted to residential lofts.
New mobile home parks or new scattered mobile homes.
Apartment buildings with irregular or missing numbering schemes for
the individual units.
Annexed land.
Areas along jurisdictional boundaries.

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Chapter 2: Before You Begin Your Review

Address Sources

There are many possible sources of address information. Differences in your
count of residential addresses and the Census Bureau’s count of addresses are
a good indication of where change is taking place and can help you identify
addresses that you need to add to your address list. The following list
provides suggestions for address source materials:
•

•
•
•
•
•
•
•
•
•

New housing construction or building permits (include units that are
under construction only if final roof, doors, and windows will be in
place on Census Day, April 1, 2010).
E-911 address files.
Housing occupancy permits.
Planning or zoning records.
Local utility records.
Drivers’ license files.
Annexation records.
Assessment or taxation files.
Voter registration files.
School enrollment records.

Option 3-Non-Title 13 Local Address List Submission State

11

CHAPTER 3
THE LUCA PROGRAM’S COMPUTER-READABLE ADDRESS COUNT LIST
Introduction
Accessing the Address Count List File
Software Requirements
The Address Count List Files
The File Formats

Introduction

The Census Bureau’s address count list file your state selected to review are
included on your CD-ROM. This chapter discusses:
•

File name and format.

•

Software requirements.

•

How to open the file.

The Address Count List Files

The address count list (ACL) file contains the residential address counts for
each census block within a county or county-equivalent your state selected to
review. The state level file is named, STxx.exe.
Where,
“ST” = 2 character, alpha entity type, “State”
and
“xx” = 2-digit, numeric entity ID for your state.
For example, the 4-character state file name for New York is:
ST36.exe
Where,
“ST” is state and “36” is the state code for New York.
The file name for the address count list for each county or county
equivalent is:
LUCA_ACL_STXXyyy.txt
Where:
“ST” = 2 character, alpha entity type, “State”
XX = 2-digit, numeric state code and,
yyy = 3-digit, numeric county FIPS code.

12

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Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

For example the address count list file name for Prince George’s County,
Maryland is:
LUCA_ACL_ST24033.txt,
Where, “ST” is State, “24” is the state code for Maryland, and “033” is
the county code for Prince George’s County.
Locating the Name of a County or Count Equivalent Using the County Code

Each filename contains a unique Federal Information Processing Standards
(FIPs) code. To locate the name of the county or county equivalent
associated with the county FIPS code visit,

•

The Census Bureau recommends that you make a copy of each of
the files and place them on the hard drive of a computer that is
password protected. This will preserve the original files should
you need to look at an original record or require another original
copy of the file.

•

To help keep your work organized, create a new directory or new
folder on your hard drive. Copy the files from the CD-ROM into
that directory or folder.

Software Requirements

The address count list files you receive are pipe-delimited ( | ) ASCII text
files, meaning they can be viewed and read as letters and numbers with a text
editor. All spreadsheet and database programs can read and understand these
text files.
Many commercial spreadsheet and database programs can open the LUCA
files. Use spreadsheet programs such as Microsoft Excel or Lotus 123 to
open, view, and edit small files. For larger files, use a database program such
as Corel Paradox, QuattroPro, Microsoft Access, or dBase8.
Note: Some computer programs that can open and view pipe-delimited text
files cannot save an edited file in the correct format. Make sure your program
has the ability to save or export a file with pipe-delimited fields. Call the Help
Desk toll free at 1-866-919-5822 if you need assistance or more information.

8

The Census Bureau does not endorse or recommend the use of any specific software to view its files. The program
names included here are only examples of programs that are able to read computer-readable files.

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13

Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

Importing the Address Count List Files

When you open the text files with your application, some spreadsheets and
databases will prompt you to supply some information about the file. Be
prepared to provide the application program with the following:
c
c
c
c

Fields are delimited.
Delimiter is a pipe symbol ( | )
Text qualifier is none.
All field types are text.

•

It is critical that you define all field types as “text” including
numeric fields such as census tract number, census block number,
ZIP Code, and all others

•

Follow the record layout in Figure 3.1 to name and define the sizes
of your fields.

•

If you need assistance or more information, call the Help Desk toll
free at 1-866-919-5822.

The File Format

The address count list contains the number of housing unit and group
quarters addresses on the Census Bureau’s address list for each census
block within the county(s) or county equivalent(s) your state selected to
review. Use the address count list to identify inconsistencies between the
Census Bureau’s housing unit and/or group quarters address counts and
your state’s housing unit and/or group quarters address counts for the
area(s) under review.
Each block record in the address count list file contains nine (9) fields of
information and has a maximum of 57 characters. The character length of
each record may vary. The first row, or header row, of the address count
list file displays the field names for each data column in the file. See
Figure 3.4 for the address count list file record layout.
1. Entity ID Code–unique identification number (maximum
character length is 12 characters) assigned by the Census Bureau to
each entity. This field is prepopulated.
2. State Code–2-digit current state code state for your state. This
field is prepopulated.
3. County Code–3-digit current county code for the county or county
equivalent under review. This field is prepopulated.
4. Census Tract Number–Contains up to a 4-digit number followed
by a decimal point and a 2-digit number for suffixed tracts, e.g.,
1234.01. For census tracts without a suffix, the number will
14

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Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

contain a period with zero fill, e.g., 4567.00. This field is
prepopulated.
5. Census Block Number–Contains a 4-digit number plus a 1-digit
alpha character, if applicable, e.g. 3001a. This field is
prepopulated.
6. Census Count of Housing Unit Addresses–Census Bureau’s
most recent count of housing unit addresses. This field is
prepopulated.
7. State Count of Housing Unit Addresses–this field is blank.
8. Census Count of Group Quarters Addresses–Census Bureau’s
most recent count of group quarters addresses. This field is
prepopulated.
9. State Count of Group Quarters Addresses–this field is blank.

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Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

Example – Address Count List File Record Layout
Figure 3.1: Address Count List File Record Layout
Maximum
Character
Length

Field Name

12

Entity ID Code

2
3

State Code
County Code

7

Census Tract Number

5

Census Block Number

7
7
7
7

Census Count of Housing
Unit Addresses
State Count of Housing
Unit Addresses
Census Count of Group
Quarters Addresses
State Count of Group
Quarters Addresses

Description/Notes

Unique identification number assigned by the Census Bureau to
each entity
2-digit State Code
3-digit County Code
Up to 4-digit Census Tract Number, plus 2-digit number suffix,
if applicable, includes a period for suffixed tracts. If no suffix,
includes period and zero fill
4-digit Current Census Block Number, plus 1-digit alpha
character suffix, if applicable
Census Bureau’s most recent count of housing unit addresses
Blank field
Census Bureau’s most recent count of group quarters addresses
Blank field

The last row records the total number of Census Blocks, Census
Bureau Housing Unit Addresses, and Census Bureau Group Quarters
Addresses on the address count list. See Figure 3.2 for the “Total
Row” Layout.
Figure 3.2: Address Count List File “Total Row” Layout
Maximum
Character
Length

Field Name

Description/Notes

7

Census Tract Number

The word “Total” appears in this column

5

Census Block Number
Census Count of Housing
Unit Addresses
State Count of Housing
Unit Addresses
Census Count of Group
Quarters Addresses
State Count of Group
Quarters Addresses

Total number of Census Blocks on the Address Count List
Total number of Census Bureau Housing Unit Addresses on the
Address Count List

7
7
7
7

16

Blank
Total number of Census Bureau Group Quarters Addresses on
the Address Count List
Blank

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Chapter 3: The LUCA Program’s Computer-Readable Address List and Address
Count List

Example – Pipe-delimited Address Count List File

Figure 3.3 is an example of how the information may appear in the address
count list file before importing the file using your software program. This
example is in the state of Idaho, state code 16, and county code 089. There
are 765 housing unit addresses and three (3) group quarters addresses in
Census Tract 6789.01, Census Block 5432.
ST16089|16|089|6789.01|5432|765| |3|
Figure 3.3: Pipe-delimited Address Count List File
Address
Count
Record

ST16089
16
089
6789.01
5432
765
Blank
3
Blank

Field Name

Entity ID Code
State Code
County Code
Census Tract Number
Census Block Number
Census Count of Housing Unit Addresses
State Count of Housing Unit Addresses
Census Count of Group Quarters Addresses
State Count of Group Quarters Addresses

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CHAPTER 4
THE CENSUS BUREAU’S PREDEFINED COMPUTER-READABLE ADDRESS LIST
FILE FORMAT
The Predefined Computer-Readable Address List File Format
The Address List Template Record Layout File

The Predefined Computer-Readable Address List File Format

You must submit your address file containing residential city-style addresses
only, in the predefined format as shown in Figure 4.1. The Census Bureau
will only accept and process address files submitted in this format. Noncitystyle addresses will not be accepted or processed.
The predefined file format contains 17 fields of information with a maximum
of 361 characters for each address record.
Figure 4.1: Census Bureau’s Predefined File Format for Address List Submission
Field
Number

Maximum
Character
Length

1

12

Entity ID Code

2
3

2
3

State Code
County Code

4

7

Census Tract Number

5

5

Census Block Number

6

1

Group Quarters Flag

7

35

House Number

8
9
10
11
12
13
14

3
2
14
100
14
2
3

Street Name Prefix Qualifier
Street Name Prefix Direction
Street Name Prefix Type
Street Name
Street Name Suffix Type
Street Name Suffix Direction
Street Name Suffix Qualifier

15

100

Group Quarters Name

16

53

Apartment/Unit Number

17

5

City-style Mailing ZIP Code

18

Field Name

Description/Notes

Unique number assigned by the Census Bureau to
each entity
2-digit Current State Code
3-digit Current County Code
Up to 4-digit Census Tract Number, plus 2-digit
number suffix, if applicable, includes a period for
suffixed tracts. If no suffix, includes period and zero
fill, e.g. 5432.00.
4-digit Current Census Block Number, plus 1-digit
alpha character suffix, if applicable
Display a ‘Y’ if the unit is a group quarters
Housing unit’s or group quarters’ assigned house
number
e.g. EXT, ALT, BUS, OLD
e.g., N, W, SE
e.g., HWY, RT, US
Full street or road name
e.g., ST, CT, AVE, DR
e.g., N,W, SE
e.g. EXT, ALT, BUS
Name of group quarters (Dobbs Hall-University of
Dobbs)
Within structure descriptor or identifier, such as APT
5 or 1st FL FRNT
5-digit ZIP Code for city-style mailing addresses

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Chapter 4: The Census Bureau’s Predefined Address File Format

The Address List Template Record Layout File

An address list template record layout is included on your CD-ROM. If
you choose, you may use this template to import your address file for
submission. The name of this file is:
AddressListTemplate.txt
•

Create a new directory or new folder on your hard drive. Copy
the file from the CD-ROM into that directory or folder.

•

When you open the text file with your application provide the
application program with the following:
o Fields are delimited.
o Delimiter is pipe. ( | )
o Text qualifier is none.
o All field types are text.

•

Define all field types as “text.”

•

Be sure that the required address information is in the
appropriate field as listed below for each address record.
Note: All address records must contain census geographic
codes including the state code, county code, census tract
number, and census block number. The Census Bureau will
not accept addresses without census geographic codes.
1. Entity ID Code
2. State Code
3. County Code
4. Census Tract Number
Note: When using the Census Bureau shapefiles to
geocode an address to a Census Tract number use the
Tractlabel attribute field on the curtracts (current tracts)
shapefile.
5. Census Block Number
6. Group Quarters Flag, if applicable:
a. Enter a “Y” in the Group Quarters Flag field
for a group quarters address
b. Add the name of the group quarters in the
Group Quarters Name field
Note: If you enter a “Y” in the Group Quarters
Flag field, you must provide a group quarters name

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Chapter 4: The Census Bureau’s Predefined Address File Format

in the Group Quarters Name field. The Census
Bureau will not process an identified group quarters
address record without a group quarters name.
7. House Number
8. Street Name Prefix Qualifier
9. Street Name Prefix Direction
10. Street Name Prefix Type
11. Street Name
12. Street Name Suffix Type
13. Street Name Suffix Direction
14. Street Name Suffix Qualifier
15. Group Quarters Name, if applicable:
•

Be sure that the Group Quarters Flag field
displays a “Y.” The Census Bureau will not
process an identified group quarters address
record without a group quarters name.

16. Apartment/Unit Number, if applicable:
•

If you have multiunit structures (apartments,
condominiums, etc.) listed in your address file
or need to add these addresses, use the
following guidelines for identifying individual
units:
a. Enter the unit designation (e.g., APT 5,
UNIT 103) in the Apartment/Unit
Number field, if known.
b. If the apartment/unit designators are
unknown, but you know the number of
units at the multiunit structure, enter
“*#”in the Apartment/Unit Number
field for each unit added.
The “*” character will alert the Census
Bureau that the actual unit identifiers are
unknown and that we need to obtain
further information during our field
check of the address. The “#” is the
sequential number, i.e., 1,2,3,4, etc.
For example, the new multiunit structure
located at 505 Wells Blvd, contains 20
units. You don’t know the actual

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Chapter 4: The Census Bureau’s Predefined Address File Format

individual unit numbers or designators
but you know there are 20 units:
i. Create 20 records with the
correct census geographic codes
(i.e., state code, county code,
census tract number, census
block number) and the street
address, 505 Wells Blvd.
ii. For each unit added at 505 Wells
Blvd, enter in sequence, the
appropriate “*#” in the
Apartment/Unit Number field.
For example, for the first unit
added at 505 Wells Blvd, enter
“*1” in the Apartment/Unit
Number field; for the second
unit record added, enter “*2” in
the Apartment/Unit Number
field, and so on, until you get to
the twentieth unit record, where
you enter “*20” in the
Apartment/Unit Number field.
17. City-style Mailing ZIP Code
•

Save your address list file for each county or county
equivalent as a pipe-delimited, ASCII text file. (If you need
further instruction on saving a pipe-delimited, ASCII text file,
please call the Help Desk toll free at 1-866-919-5822.)

•

Name the file containing the address list for each county or
county equivalent STXXyyy_LUAL.txt. (where ST is state;
XX is your state code, and; yyy is the county code)

See Chapter 6 for instructions on submitting your address list file to the
Census Bureau.

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CHAPTER 5
THE CENSUS BUREAU SHAPEFILES
Introduction
Shapefiles
Submitting Shapefile Feature Information
Metadata
Digital File Submission

Introduction

The Census Bureau provides you with shapefiles as a reference for locating
and geocoding individual addresses, and for updating and correcting features.
Shapefiles

Shapefiles require the use of GIS software. The Census Bureau provides
county-based shapefile layers in Environmental Systems Research Institute9
(ESRI) shapefile format. Participants that submit shapefiles with feature
updates must follow Census Bureau requirements.
The shapefiles, created from the MAF/TIGER database, allow you to submit
map feature updates electronically. All linear features in the MAF/TIGER
database are contained in the edges shapefile. Use the edges shapefile to add,
delete, or change linear feature attributes.
To geocode addresses to census blocks, a tabblock shapefile is included.
In addition to an edges shapefile, the Census Bureau provides shapefiles for
legal boundaries. Do not edit the legal boundaries layer.
For more details on the contents of the shapefiles, view the readme.txt file that
is included in the CD-ROM containing your shapefiles.
Submitting Shapefile Feature Information

In order to submit digital feature information, you must have a GIS capable of
importing ESRI shapefiles, editing the features, and exporting layers back into
ESRI shapefile format.

9

All shapefiles provided by the Census Bureau are in Environmental Systems Research Institute (ESRI) format. The
use of brand names does not represent an endorsement of a company or its products by the U.S. Government. Due to
the wide use of ESRI products by our partners in the GIS community, and ubiquitous use of the shapefile format as a
medium for GIS data exchange, the Census Bureau provides data in shapefile format.

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Chapter 5: The Census Bureau Shapefiles

The Census Bureau’s Shapefile Coordinate System and Projection
Information

All shapefiles provided by the Census Bureau are in the following
unprojected geographic-based coordinate system:
•
•
•
•
•
•
•
•

GCS_NAD83
Angular Unit: Degree (0.017453292519943299)
Prime Meridian: Greenwich (0.000000000000000000)
Datum: D_North_American_1983
Spheroid: GRS_1980
Semi-major Axis: 6378137.000000000000000000
Semi-minor Axis: 6356752.31414035610000000
Inverse Flattening: 298.257222101000020000

General File Setup Guidelines

Upon receipt of your shapefiles, follow the setup guidelines listed
below before beginning actual updates:
•

Open the CD and enclosed zip file to ensure it contains the
shapefiles for your entity.

•

Copy and decompress the shapefiles to a directory on your
server or hard drive.

•

Open the shapefile in a GIS.

Note: If you are using GIS software that does not contain a shapefile
translator, please contact the Help Desk toll free at 1-866-919-5822 for
further instructions.
Changing Our Coordinate System to Match Yours

Our files are in GCS_NAD83 format. Please feel free to project these
files into your local coordinate system projection. Most GIS software
packages contain projection wizards, or something similar, allowing
the user to transform file coordinate systems and projections. For
example, if your office uses ArcView to update files, please activate
and utilize ArcView’s ‘Projection Utility Wizard’ extension. If using
ArcGIS, please use its “Projection Utilities” in ArcToolbox.
MAF/TIGER extract shapefiles contain defined projection information
in the *.PRJ file. Both ArcView and ArcGIS access the *.PRJ file for
projection information; therefore, there is no need for you to define
these parameters before changing the file coordinate system.

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Chapter 5: The Census Bureau Shapefiles

In addition, if your files are in a datum other than NAD83, you must
geographically transform our files to match your datum. Most GIS
software has tools for performing geographic transformations on files.
If you transform the files to your local coordinate system, we request
that you convert them back to the GCS_NAD83 format before
submitting the file to the Census Bureau. If you encounter problems
transforming our files, please contact the Help Desk toll free at
1-866-919-5822 for assistance.
Feature Information

If you have reviewed your features using our shapefiles and have
determined that the Census Bureau needs to add, remove, or rename
features in a given area, you may submit your modifications in a
separate layer. To move or correct the shape of a feature, first delete
the feature then add the correction.
Use the appropriate update code located in the coding scheme as
shown in Figure 5.3 to identify the type of feature modification needed
for submission.
If any issues arise with the shapefiles that you submit, your Census
Bureau Regional Office will attempt to contact you to clarify the issue.
If clarification is not made prior to our project deadline, the updates
may not be incorporated into MAF/TIGER. Your updates are
considered temporary until their existence is confirmed during our
Address Canvassing Operation.
Updating the Feature Shapefile

Use the edges layer to provide all feature updates to the Census
Bureau’s shapefile.
Edges Layer Data Dictionary

The data dictionary defines the attribute information for each feature
contained in the edges layer. See Figure 5.1 for an example of the
edges layer data dictionary.
Figure 5.1: Edges Layer Data Dictionary
Field

TLID
MTFCC
FIDELITY
FULLNAME
CHNG_TYPE

24

Length

10
5
1
120
4

Type

Integer
String
Integer
String
String

Description

TIGER/Line ID
Feature MTFCC
Shape Fidelity Flag
Feature name
Type of digital linear update

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Chapter 5: The Census Bureau Shapefiles

•

TLID is the TIGER/Line® ID

•

The MAF/TIGER Feature Class Code or MTFCC is used to
identify the most noticeable characteristic of a feature.
o The MTFCC is a five-character code; the first character is
a letter describing the feature class. For example, streets
and roads are identified as S1400.
o The Census Feature Class Codes or CFCC were recently
changed to the MTFCC. A crosswalk is on the following
page as well as in the readme.txt file on your CD-ROM.

• If the FIDELITY flag contains a value of “1,” the Census Bureau

was unable to maintain the boundary’s shape during the
MAF/TIGER Accuracy Improvement Process (MTAIP).
o The MTAIP project acquired geographic information
system (GIS) files, aerial photography, and GPS data from
various sources nationwide to update the TIGER® database.
o One of the primary goals of the project was to develop a
highly accurate geographic database of the United States.
The Census Bureau focused on improving the accuracy of
street feature coordinates to provide base information
suitable for use with GPS-equipped hand held devices that
would facilitate the gathering of accurate location and
census information for all living quarters and workplaces.
o To aid the Census Bureau in developing a highly accurate
geographic database, please review all line segments (not
just roads) in the Census Bureau’s edges layer for lines
with a fidelity flag value of “1.”
•

FULLNAME is the feature name.

•

CHNG_TYPE is the type of digital linear update.

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Chapter 5: The Census Bureau Shapefiles

Figure 5.2: Census Feature Classification MTFCC to CFCC Crosswalk
Census Feature Classification MTFCC to CFCC Crosswalk
Road Features
MTFCC
S1100
S1200
S1400
S1500
S1630
S1640
S1710
S1720
S1730
S1740
S1750

FEATURE NAME

CFCC

Interstate Highway or Primary Road with
limited access
Primary Road without limited access, US
Highway, State Highway, or County Highway,
Secondary and connecting roads
Local Neighborhood Road, Rural Road, City
Street
Vehicular Trail (4WD)
Ramp
Service Drive usually along a limited access
highway
Walkway/Pedestrian Trail
Stairway
Alley
Private Road for service vehicles (logging, oil
fields, ranches, etc.)
Private Driveway

A11, A12, A13, A14, A15, A16, A17,
A18, A19
A21, A22, A23, A24, A25, A26, A27,
A28, A29, A31, A32, A33, A34, A35,
A36, A37, A38, A39
A41, A42, A43, A44, A45, A46, A47,
A48, A49, A61, A62
A51, A52, A53
A63

FEATURE NAME

CFCC

A64
A70, A71
A72
A73
A74
N/A

Water Features
MTFCC
H3010
H3013
H3020

Stream/River
Braided Stream
Canal, Ditch or Aqueduct

H10, H11, H12, H76, H77
H13
H20, H21, H22

Railroad
MTFCC
R1011
R1051
R1052

FEATURE NAME
Railroad Feature (Main, Spur, or Yard)
Carline, Streetcar Track, Monorail, Other
Mass Transit Rail
Cog Rail Line, Incline Rail Line, Tram

CFCC
B11, B12, B13, B14, B15, B16, B19, B21,
B22, B23, B29, B31, B32, B33, B39
B51, C31
B52

Miscellaneous Features
MTFCC

26

FEATURE NAME

P0001

Nonvisible Legal/Statistical Boundary

L4010
L4020
L4110
L4121
L4031
K2451
L4140
L4165

Pipeline
Power Transmission Line
Fence Line
Ridge Line
Aerial Tramway/Ski Lift
Airport or Airfield
Property/Parcel Line
Ferry Crossing

CFCC
F00, F10, F11, F12, F13, F14, F15, F16,
F17, F18, F19, F20, F21, F22, F23, F24,
F25, F50, F52, F70, F71, F72, F73, F74,
F80, F81, F82, F83, F84, F85, F86, F87,
F88
C10
C20
E10
E21
N/A
D51
F40, F41
A65, B40

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Chapter 5: The Census Bureau Shapefiles

Change Type Codes for Feature Corrections

Each updated line to the edges layer must contain one of the change
type codes (Add Line, Change Attribute, Delete Line) listed in the
coding scheme in Figure 5.3. Record the change type code in the
CHNG_TYPE field in the attribute table for each line.
Figure 5.3: Change Type Codes for Feature Corrections
Code

AL
CA
DL

Description

Add Line
Change Attribute
Delete Line

Each feature update must have a change type code in the change type
field for the line.
•

There are three change type codes:
1. Add Lines
ƒ

Code – AL

ƒ

Used to add a new feature (Road, Railroad,
Hydrography, etc.)

2. Change Attribute
Change Name
ƒ

Code – CA

ƒ

Used to change the name of a feature

ƒ

Provide the feature’s new name in the
FULLNAME field

Change Feature Class
ƒ

Code – CA

ƒ

Used to change the feature class code (e.g., a local
road mistakenly coded as a highway).

3. Delete Line
ƒ

Code – DL

ƒ

Used to delete a feature

The following are examples of change type codes for feature corrections.

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Chapter 5: The Census Bureau Shapefiles

Examples
1. Adding a Feature to the Edges Layer

Spring Street is a new street that needs to be added to the Census
Bureau’s shapefile.
•

Add or copy the missing street or feature into the edges layer.

In the attribute table:
1. Leave the TLID and FIDELITY fields blank.
2. Enter the appropriate MTFCC. In this example, S1400.
3. Enter the feature name in the FULLNAME field (if any),
in this case Spring Street.
4. Enter AL in the CHNG_TYPE field.
2. Correcting a Feature Name

Ryan Street is incorrectly identified as Bryan Street.
In the attribute table:
1. Edit the FULLNAME field, in this case correcting it from
Bryan Street to Ryan Street.
2. Enter CA in the CHNG_TYPE field.
3. Procedure for changing the MTFCC of an existing feature

A local road was mistakenly coded as a highway.
In the attribute table:
1. Edit the MTFCC from S1200 to S1400.
2. Enter CA in the CHNG_TYPE field (i.e., a local road was
mistakenly coded as a highway).
4. Deleting a feature

A section of Dunlap Street no longer exists. In addition, the entire
length of Carlisle Street has been replaced by a city park.

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Chapter 5: The Census Bureau Shapefiles

In the attribute table:
1. Enter DL in the CHNG_TYPE field for the segment of
Dunlap Street that no longer exists.
2. Enter DL in the CHNG_TYPE field for all of the segments
for Carlisle Street which no longer exist.
5. Moving a street

The Census Bureau shapefile incorrectly shows the location of Winona
Street.
Add Winona Street in the correct location in the edges layer.
In the attribute table:
1. Enter DL in the CHNG_TYPE field for the incorrect
segment(s) of Winona Street to be deleted.
2. For the new street segment(s), leave the TLID and
FIDELITY fields blank.
3. Enter the appropriate MTFCC.
4. Enter Winona Street in the FULLNAME field.
5. Enter AL in the CHNG_TYPE field.
To move or correct the shape of a feature, first delete the incorrectly
placed or aligned feature and then add the correction.
Figure 5.4 displays the attribute table, based on the previous examples.
Figure 5.4: Example Attribute Table Updates
TLID

MTFCC

FIDELITY

FULLNAME

CHNG_TYPE

S1400

Spring Street

AL

S1400

Winona Street

AL

9999999995 S1400

0

Ryan Street

CA

9999999996 S1400

0

Dunlap Street

DL

9999999997 S1400

0

Carlisle Street

DL

9999999998 S1400

0

Carlisle Street

DL

9999999999 S1400

0

Winona Street

DL

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Chapter 5: The Census Bureau Shapefiles

Attribute table update examples:
•
•
•
•
•

Spring Street added.
Bryan Street corrected to Ryan Street.
Segment of Dunlap Street deleted.
Carlisle Street deleted.
Winona Street moved.

Copy all features with values in the CHNG_TYPE field into a new
feature update shapefile. The feature updates shapefile will resemble what
is shown in Figure 5.5.
Figure 5.5: Digital Road Correction Example
Road Name Change: In the
attribute table, populate the
CHNG_TYPE field with ‘CA’ and the
new road name in the FULLNAME
field for each affected segment.

New Road Feature: Include all new road segments,
in the attribute table. Populate the new road name in
the FULLNAME field for all new segments, and populate
the CHNG_TYPE field with ‘AL.’

Delete Feature: Include all road
segments that you want to delete,
and populate the CHNG_TYPE field
with ‘DL’ in the attribute table

Road Segments

30

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Chapter 5: The Census Bureau Shapefiles

Metadata
Metadata Requirements

Metadata that describe the data content, coordinate system/projection,
author, source, and other characteristics of GIS files are critical for Census
Bureau staff to efficiently and accurately process files. The Census
Bureau requires that a metadata text file accompany every GIS file and
layer submitted.
The Federal Geographic Data Committee’s (FGDC) Content Standard for
Digital Spatial Metadata provides a national standard that enables the datasharing public to easily locate critical information about a file and ensure
that no critical information is omitted inadvertently when creating
metadata. For this reason, the Census Bureau requests that metadata be
submitted using this standard. For information about the FGDC and its
geospatial metadata standards, please visit .
The Census Bureau requires that the following sections of the FGDC
metadata form be completed:
•

Citation (information about the originator, publication date, title
edition, and other publications or information).

•

Description (section that contains an abstract describing your data
set).

•

Time period of content (section that describes the vintage of the
data).

•

Spatial domain (information about bounding coordinates).

•

Point of contact (general contact information).

•

Data quality information (information about attribute accuracy).

•

Spatial reference information (section on coordinate
system/projection of the data set).

•

Entity and attribute information (section that describes the contents
of your table).

To help you fulfill the requirement of filling out and submitting metadata,
the Census Bureau suggests visiting the United States Geological Survey
(USGS) Web site at . This site contains useful
information about FGDC compliant metadata, from which one can read
about metadata frequently asked questions, view FGDC metadata
examples, and connect to other FGDC related Web pages. The FGDC 's
metadata URL is .

Option 3-Non-Title 13 Local Address List Submission State

31

Chapter 5: The Census Bureau Shapefiles

Moreover, if you are using Arc/Info, the following link points to a useful
Arc Macro Language (AML) tool that, when executed, completes most of
the required sections of the metadata form automatically
. (This AML is a
product of the Illinois State Geological Survey.)
Note: ESRI’s ArcCatalog also has an embedded program that uses the
FGDC standard in its creation of geospatial metadata.
If you have questions regarding the metadata requirements, please contact
the Help Desk toll free at 1-866-919-5822.
Digital File Submission

Use the following as a guide to ensure that you have included all the
required layers for each county.
•

Save the changes for each county in a separate feature update layer
file. Name each file:
LUCA__LN_changes.shp (where XX is the state
code and the yyy is the county code)
The feature update layer must include:
o A value in its “CHNG_TYPE” field that indicates the type
of change.
o Only feature updates (do not include unmodified features).

•

32

Include the appropriate metadata.

Option 3-Non-Title 13 Local Address List Submission State

CHAPTER 6
SUBMITTING YOUR LUCA PROGRAM UPDATES
Submitting LUCA Program Updates
Shipping Your LUCA Materials

Submitting LUCA Program Updates

After completing your review and update of the LUCA materials, return the
materials with updates and your address lists to the Census Bureau’s Regional
Office responsible for your state. Include the inventory form, Appendix C,
with your returned materials.
•

Save the address list file for each county or county equivalent as a
pipe-delimited, ASCII text file. (If you need further instruction on
saving a pipe-delimited, ASCII text file, please call the Help Desk toll
free at 1-866-919-5822.)

•

Name the file containing the address list for each county or county
equivalent STXXyyy_LUAL.txt. (where ST is state; XX is your state
code, and; yyy is the county code.)

•

Make a copy of your submitted files to keep for your records and to
use during the Feedback phase of the program.

•

ZIP the files.
o If you do not have ZIP software, Freebyte ZIP software is provided
on your CD-ROM.

•

Burn the files to a CD-ROM or DVD.
Note: If you are submitting shapefiles, you may burn all of your
files to one (1) CD-ROM or DVD. See the section, Preparing the
Shapefiles for Submission.

•

Send the CD-ROM or DVD to your Census Bureau Regional Office as
instructed in the section, Shipping Your LUCA Materials.

•

You cannot submit files via e-mail or post the files to an FTP site.

Preparing the Shapefiles for Submission

Note: If you are using ArcGIS, when you copy files to be burned to a
CD-ROM, be sure to use ArcCatalog. ArcCatalog will capture all
required files such as .dbf, .shp, .shx, etc.

Option 3-Non-Title 13 Local Address List Submission State

33

Chapter 6: Submitting Your LUCA Program Updates

•

•

Name the feature update layers for each county :
LUCA__LN_changes.shp (where xx is the state code
and the yyy is the county code)
Compress all updated materials–Shapefile and Metadata–into one
ZIP formatted file called:
LUCA_2010__Return.ZIP (where xx is your state
code)

Save a backup copy of your updated digital file for your records and to
use during the Feedback phase of the program.
•

Burn the file to a CD-ROM or DVD.

•

Send the CD-ROM or DVD with updates to your Census Bureau
Regional Office as instructed in the section, Shipping Your LUCA
Materials.

•

You cannot submit files via e-mail or post the files to an FTP site.

Note: You may burn all of your files (shapefiles, address list, and
address count list) to one (1) CD-ROM or DVD.
Shipping Your LUCA Materials
•

Double wrap all address materials.

•

Address all envelopes, mailing boxes, mailing tubes, etc. to:
ATTN: GEOGRAPHY
U.S. Census Bureau
Address for your Census Bureau Regional Office
You can find a list of the Census Bureau’s Regional Office addresses
on the back cover.

34

•

Use the prepaid, preprinted FedEx label provided to you, if FedEx
delivery service is available in your area.

•

Use shipping contractors that provide tracking services, such as U.S.
Postal Service (USPS) certified or registered mail, FedEx, United
Parcel Service (UPS), or similar service.

Option 3-Non-Title 13 Local Address List Submission State

APPENDICES

Appendix A
Physical Location Description and Street Type Abbreviation Examples

Full Name
Alternate Route
Avenue
Blue
Boulevard
Brown
Boarded Up
Circle
County Highway
County Road
Court
Drive
East
Four-Wheel Drive Trail
Freeway
Green
General Delivery
Hospital
Highway Contract Route
House
Interstate
Intersection
Lane
North
Parkway
Post Office Box
Road
Route
Rural Route
South
Star Route
State Highway
State Road
State Route
Street
Thoroughfare
Township Highway
Township Road
West
White
Yellow
With

Abbreviations
ALT
AVE
BL
BLVD
BRN
BU
CIR
CO Hwy
CO Rd
CT
DR
E
4WD
FWY
GR
GEN DEL
HOSP
HCR
HSE
I
INT
LN
N
PKWY
PO BOX
RD
RTE
RR
S
ST RT
ST HWY
ST RD
ST RTE
ST
THFR
TWP HY
TWP RD
W
WHT
YLW
W/

Appendix A: Physical Location Description and Street Type
Abbreviation Examples

35

Appendix B
Unit Designation Abbreviation Examples

Name
Apartment
Basement
Bottom
Downstairs
Floor
Front
Interior
Level
Lower
Middle
Mobile Home
Number
Penthouse
Room
Right
Space
Studio
Suite
Suites
Trailer
Upper
Upstairs

36

Abbreviation
APT
BSMT
BOTM
DOWN
FLR
FRNT
INTE
LVL
LOWR
MIDL
MH
#
PH
RM
RGHT
SP
STUD
STE
STES
TRLR
UPPR
UPS

Appendix B: Unit Designation Abbreviation Examples

Appendix C
Inventory Form

Appendix C: Inventory Form

37

Glossary

Address breaks – Address breaks are the city-style addresses on each side of a boundary
or at an intersection of a street with another street or another feature.
Address count list – Identifies the number of housing unit addresses and group quarters
addresses on the Census Bureau’s address list for each census block within a jurisdiction.
Address range – The lowest and highest address numbers used to identify structures
along each side of a street segment that has city-style addresses. Usually one side of the
street has even address numbers and the other side has odd address numbers.
American Indian area – A Census Bureau term that refers to any or all of the following
entities: American Indian reservation, American Indian off-reservation trust land,
Oklahoma tribal statistical area, joint use area, American Indian tribal subdivision, tribal
designated statistical area, and state designated American Indian statistical area.
American Indian off-reservation trust land – The United States holds title for specific
areas in trust for the benefit of federally recognized American Indian tribes (tribal trust
land) or for individual American Indians (individual trust land). Although trust land may
be located on or off a reservation, the Census Bureau recognizes and tabulates data only
for off-reservation trust land. Census data always associate off-reservation trust land with
a specific federally recognized reservation or tribal government.
American Indian reservation – A federal American Indian reservation is an area that
has been set aside by the United States for the use of one or more federally recognized
American Indian tribes. It covers territory over which a tribe(s) has primary
governmental authority. Its boundary is defined by tribal treaty, agreement, executive or
secretarial order, federal statute, or judicial determination. A state American Indian
reservation is an area that a state government has allocated to a tribe recognized by that
state, but not by the federal government.
Block number – A 4-digit number, plus 1 alpha character block suffix, if applicable,
used by the Census Bureau to identify each census block. Census blocks are numbered
uniquely within each census tract.
Boundary – A line, either invisible or coincident with a visible feature that identifies the
extent of a geographic entity, such as a census tract, city, or county.
Boundary and Annexation Survey – An annual survey to collect information about
selected legally defined geographic areas. The BAS is used to update information about
the legal boundaries and names of all governmental units in the United States.
Census Bureau address list – A nationwide list of all housing unit and group quarters
addresses known to the Census Bureau. In addition to the mailing address and ZIP Code,
the Address List may identify the location of each housing unit and group quarters.
38

Census block – A geographic area bounded by visible features, such as streets, roads,
streams, and railroad tracks, and invisible features, such as the boundaries of
governmental units and other legal entities. A census block is the smallest area for which
the Census Bureau collects and tabulates statistical information. Census blocks are
numbered within census tracts and are unique to the census tract to which they belong.
Census block number –Census block numbers contain a 4-digit number plus a 1-digit
alpha character, if applicable, e.g. 3001A. Suffixes, such as 2011A and 2011B, reflect
boundary changes as well as added features.
Census Bureau – An agency within the U.S. Department of Commerce. The U.S.
Census Bureau is the country's preeminent statistical collection and dissemination
agency. It publishes a wide variety of statistical data about people and the economy of
the nation. The Census Bureau conducts approximately 200 annual surveys and
conducts the decennial census of the United States population.
Census Bureau map – Any map produced by the Census Bureau. A Census Bureau
map displays geographic entities used in a Census Bureau sponsored census or survey for
which the Census Bureau tabulates data.
Census tract – A small, relatively permanent statistical division of a county or
statistically equivalent entity, delineated for the purpose of presenting Census Bureau
statistical data. Census tracts never cross the boundary of a county or statistically
equivalent entity, but may split other geographic entities; e.g., minor civil divisions and
places.
Census tract number – Unique numbers to identify census tracts within a county or
statistically equivalent entity. Census tract numbers contain up to a 4-digit number
followed by a decimal point and a 2-digit number for suffixed tracts, e.g., 1234.01. For
census tracts without a suffix, the number will contain a period with zero fill, e.g.,
4567.00. Leading zeros are not shown on Census Bureau maps.
Chief executive/highest elected official – The elected or appointed person who is the
chief executive official of a governmental unit and is most responsible for the
governmental activities of the governmental unit, such as the governor of a state, chair of
a county commission, or mayor of an incorporated place. This person receives the LUCA
Program invitation letter, and must designate a LUCA liaison, if desired.
City-style address – An address that consists of a house number and street name; for
example, 201 Main Street. The address may or may not be used for the delivery of mail
and may include apartment numbers/designations or similar identifiers.
Confidentiality – The guarantee made by law (Title 13, United States Code) to
individuals who provide information about themselves or their business to the Census
Bureau. This item refers to the Census Bureau’s promise of nondisclosure of that
information to others.

39

County – The primary legal division of most states. Most are governmental units with
powers defined by state law.
Delivery Sequence File (DSF) – A computerized file containing all delivery point
addresses serviced by the U.S. Postal Service (USPS). The USPS updates the DSF
continuously as its letter carriers identify addresses for new delivery points or
changes in the status of existing addresses.
Edges shapefile – All linear features in the MAF/TIGER database are contained in the
edges shapefile. Use the edges shapefile to add, delete, or change linear feature
attributes.
Enumeration – The process of interviewing people and recording the information
on census forms.
Feature – Any part of the landscape, whether natural (such as, a stream or ridge) or
artificial (such as a road or power line). In a geographic context, features are any part of
the landscape portrayed on a map, including nonvisible boundaries of legal entities, such
as city limits or county lines.
Federal Information Processing Standards codes (FIPS codes) – a standardized set of
numeric or alphabetic codes issued by the National Institute of Standards and Technology
(NIST) to ensure uniform identification of geographic entities through all federal
government agencies. The entities covered include: states and statistically equivalent
entities, counties and statistically equivalent entities, named populated and related
location entities (such as places and county subdivisions), and American Indian and
Alaska Native areas.
Geocodes – Codes that place an individual address in its correct geographic location,
which includes the correct state, county, census tract, and census block codes.
Geographic Information System (GIS) – A computer system for the storage, retrieval,
and maintenance of information about the points, lines, and areas that represent the
streets and roads, rivers, railroads, geographic entities, and other features on the surface
of the Earth-information that previously was available only on paper maps.
Governmental unit – A geographic entity established by legal action for the purpose of
implementing specified governmental functions. Most governmental units provide a
number of general government services and raise revenues (usually through taxing
authority).
Group quarters – A place where people live or stay, in a group living arrangement, that
is owned or managed by an entity or organization providing housing and/or services for
the residents. This is not a typical household-type living arrangement. These services
may include custodial or medical care as well as other types of assistance, and residency

40

is commonly restricted to those receiving these services. People living in group quarters
are usually not related to each other.
Group quarters include such places as correctional facilities, juvenile facilities, nursing
homes, hospitals with long-term care facilities, college or university dormitories,
fraternities, sororities, dormitories for workers, religious group quarters, shelters, group
homes.
Housing unit (HU) – A single-family house, townhouse, mobile home, trailer,
apartment, group of rooms, or a single room occupied as a separate living quarters or, if
vacant, intended for occupancy as a separate living quarters. A separate living quarters is
one in which one or more occupants (or intended occupants, if vacant) live separate from
any other individual(s) in the building and have direct access to the living quarters
without going through another living quarters, such as from outside the building or
through a common hall.
Legal boundary – The legally defined boundary of a governmental unit, usually
referring to a county, minor civil division, or incorporated place. The legal boundary
identifies the area within a local or state government's jurisdiction, and thus bounds the
area of LUCA responsibility.
LUCA state liaison – Also known as the program primary liaison or designated liaison.
A person voluntarily appointed by the chief executive/highest elected official of each
state to review the Census Bureau’s address list and maps against local records to
identify differences.
MAF/TIGER Database – The Census Bureau’s nationwide geographic database, which
integrates the Master Address File (MAF) and Topologically Integrated Geographic
Encoding and Referencing (TIGER®) files.
MAF/TIGER Partnership Software (MTPS) – A GIS application provided by the
Census Bureau that has customized functionality required by Census Bureau geographic
partnership programs.
Map Sheet to Block Number Relationship List – A list identifying census block
numbers and the Census Bureau map(s) on which each block is located.
Master Address File (MAF) – A nationwide database of all addresses to support many
of the Census Bureau’s operations. Besides containing mailing addresses and ZIP
Codes, a MAF record also contains geographic information about the location of
addresses.
Metadata – describes the data content, coordinate system/projection, author,
source, and other characteristics of GIS files.

41

Minor civil division (MCD) – A type of governmental unit that is the primary
governmental or administrative subdivision of a county. MCDs are identified by a
variety of terms, such as town (in 8 states), township, and/or district, and include both
functioning and nonfunctioning governmental entities.
Noncity-style address – An address that does not have a house number and/or street
name or may not include a complete house number and street name address. This
includes rural route and box number address and highway contract route addresses, etc.,
which may include a box number, post office boxes and drawers, and general delivery.
Occupied housing unit – A housing unit is classified as occupied if it is the usual place
of residence of the individual or group of persons living in it at the time of enumeration
or if the occupants are only temporarily absent; for example, away on vacation.
Occupied rooms or suites of rooms in hotels, motels, and similar places are classified as
housing units only when occupied by permanent residents, that is, individuals for whom
the facility is their usual place of residence.
Place – A concentration of population either legally bound as an incorporated place
or identified by the Census Bureau as a census designated place.
Regional Office – One of 12 permanent Census Bureau offices responsible for the
Census Bureau’s office and field operations within its region.
Shapefile – Data set used to represent geographic features such as streets and
boundaries. Shapefiles can represent point, line, or area features and require GIS or
mapping software.
Street segment – The portion of a street or road between two features that intersect that
street or road, such as other streets or roads, railroad tracks, streams, and governmental
unit boundaries. The Census Bureau records the known address ranges for every street
segment with city-style addresses.
Structure Point – A dot on a Census Bureau map, used to show the location of
one or more living quarters. A 4-digit number plus 1-digit alpha character
assigned within a census block to each structure point. Structure points are stored
in the TIGER® database.
®

Topologically Integrated Geographic Encoding and Referencing (TIGER ) – A
computer database that contains a digital representation of all map features (streets,
roads, rivers, railroads, lakes, and so forth) required to support Census Bureau
operations, the related attributes for each, and the geographic identification codes for all
entities used by the Census Bureau to tabulate data for the United States, Puerto Rico,
and Island Areas.
Vacant housing unit – A habitable structure containing living quarters that is not
occupied. New housing units not yet occupied are classified as vacant housing units if

42

construction has reached a point where exterior windows and doors are installed and final
usable floors and a roof are in place. Vacant units are excluded if open to the elements,
or if there is positive evidence, such as a sign on the house, that the housing unit is to be
demolished or has been condemned.

43

Index
defined, 40
Federal, 40
Format of the Files, 14

A
Address control file 1990, 2
defined, 2
Address count list
file name, 12
file record layout, 16
pipe-delimited file example, 17
Address list
opening files, 14
software requirements, 13
Address range
in TIGER, 2
Address types, 8
nonresidential, 8
residential, 8
American Indian area
defined, 38
American Indian off-reservation trust land
defined, 38
American Indian reservation
defined, 38

G
Governmental unit
defined, 40
Group quarters
acceptable types, 7
defined, 7, 41
unacceptable types, 7

H
House number and street name addresses, 8
Housing unit
acceptable, 6
defined, 6, 41
unacceptable types, 7

L
Legal boundary
defined, 41
Liaison
chief-executive/highest elected official, 39
defined, 41
Local address list
sources, 11
LUCA program
explained, 1
schedule, 4
shipping materials, 34
training, 4

B
Block number
defined, 38
Boundary
defined, 38

C
Census address list improvement act of 1994, 2
Census block
defined, 9, 10, 39
Census tract. See also census tract number
defined, 9, 39
Census tract number. See also census tract
defined, 39
Chief executive/highest elected official
defined, 39
invitation, 1
City-style address. See house number and street
name addresses
defined, 8, 39
Confidentiality
defined, 39

M
Master address file (MAF)
creation, 2
defined, 41
Minor civil division. See legal boundary

N
Noncity-style address
defined, 8, 42
Non-house number and street name addresses.
See non-city style addresses
Nonresidential addresses, 8

D
Delivery sequence file (DSF), 2

O
Occupied housing unit
defined, 42

F
Feature

Index

44

submitting feature information, 22
Software requirements, 13
Strategies for review, 10
Structure point
defined, 42

P
Participant responsibilities, 3
Pipe-delimited file
address count list, 17
defined, 13

T

S

Topologically integrated geographic encoding
®
and referencing. See also TIGER/Line file
defined, 42

Shapefile
defined, 42

45

Index

U.S. Census Bureau Regional Offices
Toll Free 1-866-511 LUCA (5822)

Alabama
Georgia
Florida

Connecticut
Maine
Massachusetts
New Hampshire
New York
Puerto Rico
Rhode Island
Vermont
Kentucky
North Carolina
South Carolina
Tennessee
Virginia

Illinois
Indiana
Wisconsin

Louisiana
Mississippi
Texas

Arizona
Colorado
Montana
Nebraska
Nevada
New Mexico
North Dakota
South Dakota
Utah
Wyoming

Atlanta Regional Office

Detroit Regional Office

101 Marietta Street, N W , Ste. 3200

1395 Brewery Park Blvd, Ste. 100

Atlanta, GA 30303-2700

Detroit, MI 48207

Phone: 404-331-1339

Phone: 313-656-0183

FAX: 404-331-1570

FAX: 313-259-2529

TDD: 404-730-3963

TDD: 313-259-5169

E-mail:

E-mail:

[email protected]

[email protected]

Boston Regional Office

Kansas City Regional Office

4 Copley Place, Ste. 301

1211 North 8th Street

P.O. Box 9108

Kansas City, KS 66101-2129

Boston, MA 02117-9108

Phone: 913-551-6833

Phone: 617-424-4513

FAX: 913-551-6780

FAX: 617-424-0547

TDD: 800-877-8339

TDD: 617-424-0565

E-mail:

Email:

[email protected]

Michigan
Ohio
West Virginia

Arkansas
Iowa
Kansas
Minnesota
Missouri
Oklahoma

[email protected]
Charlotte Regional Office

Los Angeles Regional Office

901 Center Park Drive, Ste. 106

15350 Sherman Way, Ste. 300

Charlotte, NC 28217-2935

Van Nuys, CA 91406

Phone: 704-424-6420

Phone: 818-267-1724

FAX: 704-424-6966

FAX: 818-267-1714

TDD: 704-424-6963

TDD: 818-904-6249

E-mail:

E-mail:

[email protected]

[email protected]

Chicago Regional Office

Philadelphia Regional Office

1111 W 22nd Street, Ste. 400

833 Chestnut Street, Ste. 504

Oak Brook, IL 60523-1918

Philadelphia, PA 19107-4405

Phone: 630-288-9245

Phone: 215-717-1830

FAX: 630-288-9313

FAX: 215-717-0875

TDD: 800-865-6384

TDD: 215-717-0894

Ext 13

E-mail:

E-mail: [email protected]

[email protected]

Dallas Regional Office

Seattle Regional Office

8585 N Stemmons Freeway, Ste. 800 S

601 Union Street, Ste. 3800

Dallas, TX 75247

Seattle, WA 98101-1074

Phone: 214-253-4470

Phone: 206-381-6260

FAX: 214-655-5365

FAX 206-381-6313

TDD: 214-655-5363

TDD: 206-381-6318

E-mail:

E-mail:

[email protected]

[email protected]

Denver Regional Office
6900 W Jefferson Avenue, Ste. 100
Denver, CO 80235
Phone: 303-264-0290
FAX: 303-969-6776
TDD: 303-969-6767
E-mail:
[email protected]

California
Hawaii

Delaware
Maryland
New Jersey
Pennsylvania

Alaska
Idaho
Oregon
Washington


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