Boundary and Annexation Survey

Boundary and Annexation Survey (BAS)

BAS-5L_508

Boundary and Annexation Survey

OMB: 0607-0151

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BAS-5L
OMB Control No.: 0607-0151
Expiration Date: 11-30-2023

A Message from the Director, U.S. Census Bureau:
The U.S. Census Bureau is now conducting the Boundary and Annexation Survey (BAS). Do not miss this
opportunity to participate in BAS to ensure that the Census Bureau has current and accurate legal
boundary, name, and status information for your government. Participants may also provide updates to
census designated places.
Your government is in more than one county or county equivalent government, and at least one
responds to BAS for a portion of your government. Please respond to BAS for the portion of your
government located in .
BAS is a voluntary survey. We strongly encourage your participation in BAS for the following reasons:
•

The Census Bureau uses this boundary information for data collection, tabulation, and
dissemination for the decennial census, American Community Survey (ACS), Population
Estimates Program (PEP), and many other censuses and surveys.

•

The federal government allocates more than $675 billion in federal funds annually for health,
welfare, infrastructure, education, and other federal programs and services. Correct boundaries
ensure governments receive funds appropriately and have the best data available for their
decision-making processes.

Action Steps:
•

Review your government’s boundary and respond to BAS with one of these options:
a. Use the interactive BAS Annual Response Form. The form includes all resources and
instructions to review boundaries and respond to BAS. (Recommended)
Interactive BAS Annual Response Form:
.
b. Use map resources on the BAS website to review the boundary data, then email your
response to . Please include the following information in your
email with the BAS ID in the email subject line:
i. Are there boundary changes to report to the BAS? (Yes or No)
ii. Are there updates to the highest elected official (HEO) or BAS contact
information? If so, please provide the updated contact information.

census.gov

HEO CONTACT







BAS CONTACT







Please respond to BAS with a “No Changes” response if you have no updates to report for your
government. If you do not respond, we will contact your government to confirm your boundary
change status.
TRAINING OPPORTUNITIES
The Census Bureau is offering training webinars for BAS. The webinar schedule and registration
instructions are on the BAS Webinars webpage at .
KEY DATES
January 1

Boundary updates must be legally in effect on or before this date to be reported in the
current survey year.

March 1

First BAS deadline - Boundary updates returned by this date will be reflected in the ACS
and PEP data and in next year’s BAS materials.

May 31

Final BAS deadline - Boundary updates returned by this date will be reflected in next
year’s BAS materials.
CONTACT INFORMATION

Email: 
Phone: 1-800-972-5651
Website: 
Thank you for your participation in BAS.

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File Typeapplication/pdf
File TitleBAS 5L
AuthorU.S. Census Bureau
File Modified2021-09-16
File Created2021-09-16

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