American Community Survey (ACS) data are tabulated for a variety of different geographic areas ranging in size from broad geographic regions to cities, towns, county subdivisions, and block groups. View the chart below outlining the number of areas receiving data by geographic level. Note that 5-year estimates are available for all areas.
The chart below includes only selected summary levels, therefore not all geographic areas are represented below. To view the complete list of geographic areas published for ACS 1-year and 5-year estimates, as well as detailed lists for 1-year and 1-year Supplemental Estimates, visit the Reference Materials page.
Many factors other than population size also affect whether ACS data are published. Visit the Data Release Rules page for more details and to learn how population thresholds are applied.
| Geographic Areas | 1-Year Estimates | 1-Year Supplemental Estimates | ||
|---|---|---|---|---|
| Areas with a Population of 65,000+* | Areas with a Population of 20,000+* | |||
| Number | Percentage | Number | Percentage | |
|
1County equivalents include Alaska boroughs, municipalities, city and boroughs, and census areas; the District of Columbia; Louisiana parishes; Puerto Rico municipios; independent cities in Maryland, Missouri, Nevada, and Virginia; and Council of Governments (COGs)/planning regions in Connecticut. 2For 1-year estimates, qualifying Minor Civil Divisions in 20 states only. For 5-year estimates, all county subdivisions. 31-year estimates are not produced for this geographic level, regardless of population size. 4All metropolitan statistical areas receive ACS 1-year estimates. A population minimum of 50,000 is applied instead of the standard 65,000. 5Legislative session year 2024. *Counts based on geographic area boundaries as of January 1, 2025. |
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| United States | 1 | 100% | 1 | 100% |
| Region | 4 | 100% | 4 | 100% |
| Division | 9 | 100% | 9 | 100% |
| States, the District of Columbia, and Puerto Rico | 52 | 100% | 52 | 100% |
| County or Equivalent1 | 863 | 27% | 1,919 | 60% |
| County Subdivision2 | 241 | 1% | 1,227 | 3% |
| Subminor Civil Division (Puerto Rico Only)3 | N/A | N/A | N/A | N/A |
| Census Tract3 | N/A | N/A | N/A | N/A |
| Block Group3 | N/A | N/A | N/A | N/A |
| Place (Incorporated Places and Census Designated Places) | 672 | 2% | 2,419 | 7% |
| Consolidated City3 | N/A | N/A | N/A | N/A |
| Alaska Native Regional Corporation | 3 | 25% | 4 | 33% |
| American Indian Area/Alaska Native Area/Hawaiian Home Land | 12 | 2% | 35 | 5% |
| Specified American Indian Area-Tribal Census Tract3 | N/A | N/A | N/A | N/A |
| Specified American Indian Area-Tribal Census Tract-Tribal Block Group3 | N/A | N/A | N/A | N/A |
| Metropolitan Statistical/Micropolitan Statistical Area4 | 536 | 57% | 913 | 98% |
| Principal City of Metropolitan or Micropolitan Statistical Areas | 422 | 33% | 816 | 63% |
| Metropolitan Division | 37 | 100% | 37 | 100% |
| Combined Statistical Area | 180 | 98% | 184 | 100% |
| Urban Area | 437 | 17% | 937 | 36% |
| Congressional Districts - 119th | 435 | 100% | 435 | 100% |
| Delegate District - 119th (at Large, District of Columbia) | 1 | 100% | 1 | 100% |
| Resident Commissioner District - 119th (at Large, Puerto Rico) | 1 | 100% | 1 | 100% |
| State Legislative District3, 5 (Upper) | N/A | N/A | N/A | N/A |
| State Legislative District3, 5 (Lower) | N/A | N/A | N/A | N/A |
| Public Use Microdata Area | 2,486 | 100% | 2,486 | 100% |
| 5 digit ZIP Code Tabulation Area3 | N/A | N/A | N/A | N/A |
| School District (Elementary) | 81 | 4% | 303 | 15% |
| School District (Secondary) | 94 | 19% | 218 | 44% |
| School District (Unified) | 940 | 9% | 3,097 | 28% |
| Total | 7,507 | 2% | 15,098 | 3% |