The files are updated biannually and include total housing units (including transitory units) and total group quarters counts as of January 2024, by current tabulation block. These files are created for all 50 States, District of Columbia, Puerto Rico, and Island Areas and were released January 2024.

File Naming Convention

These pipe delimited text files are named using the following convention: <st>_<name>_AddressBlockCountList_<mm><yyyy>.txt, where:

<st> = Two-digit state FIPS code
<name> = Concatenated state (or equivalent) name
<mm> = Two-digit month the file was created
<yyyy> = Four-digit year the file was created

An example file name is:

44_RhodeIsland_AddressBlockCountList_122023.txt

Record Layout

Field Name	Field Description
STATE	Two-digit state FIPS code
COUNTY	Three-digit county FIPS code
TRACT	The census tract number consists of six digits with an implied decimal between the fourth and fifth digits corresponding to the basic census tract number but with leading zeroes and trailing zeroes for census tracts without a suffix.
BLOCK	Four-digit census block number. Census blocks are numbered uniquely from 0000 to 9999 within census tract, which nest within state and county. A census block that has been split since the 2020 Census includes a one-character alpha suffix (A-Z). The first digit of the census block number identifies the block group.
BLOCK_GEOID	Concatenation of STATE, COUNTY, TRACT, and BLOCK fields, described above, for use in joining the census block-level feedback data to the census blocks in the partnership shapefiles.
TOTAL HOUSING UNITS	Total number of addresses in the entity count list identified as housing units or transitory units by data in the Master Address File (MAF).
TOTAL GROUP QUARTERS	Total number of addresses in the entity count list identified as group quarters by data in the MAF.

Download Address Count Listing Files

Choose a state to view:

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District of Columbia

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Wisconsin

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Puerto Rico

American Samoa

Commonwealth of the Northern Mariana Islands

Guam

U.S. Minor Outlying Islands

U.S. Virgin Islands

Address Count Listing Files Viewer

The Address Count Listing Files Viewer supplements the Address Count Listing files with an interactive map of the same information. The viewer also includes AREA LAND and AREA WATER (in square meters).