Preparing for LUCA

1. Register with the U.S. Census Bureau

The deadline to register to participate in the Census Bureau's Local Update of Census Addresses (LUCA) program is December 15, 2017. Registration requires the signature of your government's highest elected official. Blank registration forms are available on the Census Bureau's LUCA website.

You can visit this map to see which governments so far have registered to participate in LUCA. Please note, you must zoom in quite a ways to view cities that have registered.

2. Attend technical training

The Census Bureau is currently delivering technical training workshops to people who will be involved in LUCA on behalf of eligible governments. Many technical training sessions are delivered via webinar. See the Census Bureau's LUCA website for details.

3. Identify sources of information to help you check the completeness of the Census Bureau's records of housing units in your jurisdiction

Possible sources of addresses that local governments can use for LUCA:

  • New construction and occupancy permits
  • E-911 address files
  • Planning and zoning records
  • Local utility records
  • Property tax records

4. Identify areas to prioritize during your review (optional)

You can download a text file that contains counts of residential and group quarters addresses geocoded by block that the Census Bureau prepared to help local governments determine where to focus special attention during their LUCA review. Updated counts by block were shared October 2017. Instructions on how you can use this file are on the Census Bureau's LUCA website.

Alternatively, below are files that can be downloaded and viewed in Google Earth. Each file has housing unit and group quarters counts by block matched to shapefiles from the Census Bureau. The files must be unzipped before they can be opened in Google Earth. These files contain the updated counts from October 2017.

The purpose of these files is to help you decide where to focus your LUCA review. By seeing whether the Census Bureau's counts of housing units and group quarters closely match your knowledge of your local community or whether they differ, you can decide which areas deserve the closest attention during LUCA.

Below is an image of what the files look like when viewed through Google Earth. Each census block used for tabulating 2010 decennial census data is outlined in turquoise. Clicking on a block results in a fact box appearing that has details about the selected block. TotalResid is the number of residential housing units the Census Bureau has records for in the block. TotalGroup is the number of group quarters the Census Bureau has records for in the block. A detailed list of group quarters types and definitions is here.

View of a census block in Brevig Mission in Google Earth

Please note: As you can see in the area circled in red in the image below, in many cases, the block boundaries in the Census Bureau's shapefile do not appear to line up with their corresponding on-the-ground features. To view more precise maps of each jurisdiction's block, look at the Census Bureau's TIGERweb application or its block maps in PDF format.

View of a census block in Brevig Mission in Google Earth

All of the information shared on this page and on the pages linked to it are available to the public. None of it is confidential.