NSC for emails sent to counties

Ungeocoded Addresses email and web wording 04232018.docx

2020 Census Local Update of Census Addresses Operation (LUCA)

NSC for emails sent to counties

OMB: 0607-0994

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D-2077 OMB No. 0607-0994: Approval Expires 12/31/2019



Attention: You may not be able to see some of the addresses in your LUCA file! This email explains whether you might be affected and if so, the options to resolve it.



LUCA Participant,

It has come to our attention that due to a Census Bureau data error, county governments participating in LUCA are unable to view the ungeocoded census addresses associated with their community while using the Geographic Update Partnership Software (GUPS). The ungeocoded addresses are included in the LUCA address list provided to each participant, but the GUPS is not displaying those addresses.

As a reminder, ungeocoded addresses are addresses where the Census Bureau is unable to determine which census tract and census block the address is located in. In most cases, these are new addresses where the Census Bureau has not added the roads, street names or address ranges to our maps that would allow for a precise location to be established.

If your county is using GUPS, and would like to review the ungeocoded addresses associated with your county, the procedure is described in the Frequently Asked Questions on our website:

https://www2.census.gov/geo/pdfs/partnerships/luca/2020LUCA_GUPS FAQ.pdf (Actual URL TBD)

An additional two weeks of review time will be added to your 120-day review period to ensure you have enough time to complete your LUCA review.


If you are using GUPS and would prefer that the Census Bureau redeliver a corrected address file that will allow GUPS to display the ungeocoded records without using the procedure referenced above, then contact the Census Bureau at 1-844-344-0169. Note, if you choose to receive a corrected address file, we will extend your 120-day review period by two weeks.


If you have already submitted your LUCA updates to the Census Bureau, you are welcome to review the ungeocoded addresses using either method described above, and provide them to the Census Bureau as either a supplemental file of just the ungeocoded updates or a replacement file containing all of your updates for LUCA. An additional two weeks of review time will be added to your 120-day review period to ensure you have enough time to complete your LUCA review.

If you are not using GUPS, you can find the ungeocoded addresses on your LUCA address list by searching for those addresses where the Census State, Census County, Census Tract, Census Block and GEOID fields are blank. 

If you have any questions, please call the Census Bureau at 1-844-344-0169.

File Typeapplication/vnd.openxmlformats-officedocument.wordprocessingml.document
File TitleLUCA Ungeocoded Addresses email NSC
AuthorBrian Kevin Timko (CENSUS/GEO FED)
File Modified0000-00-00
File Created2021-01-15

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