Planned Maintenance
census.gov is undergoing planned maintenance. Users may experience interruptions in service when accessing pages. Thank you for your patience.

Areas Published

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.

Selected Geographic Areas Published in the 2024 American Community Survey 1-Year Estimates, 1-Year Supplemental Estimates, and 5-Year Estimates

Geographic Areas 1-Year Estimates 1-Year Supplemental Estimates 5-Year Estimates
Areas with a Population of 65,000+* Areas with a Population of 20,000+* All Areas**
Number Percentage Number Percentage Number

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, 2024.

**The Census Bureau does not publish ACS data for blocks.

United States 1 100% 1 100% 1
Region 4 100% 4 100% 4
Division 9 100% 9 100% 9
States, the District of Columbia, and Puerto Rico 52 100% 52 100% 52
County or Equivalent1 861 27% 1,919 60% 3,222
County Subdivision2 238 1% 1,222 3% 36,421
Subminor Civil Division (Puerto Rico Only)3 N/A N/A N/A N/A 145
Census Tract3 N/A N/A N/A N/A 85,382
Block Group3 N/A N/A N/A N/A 242,297
Place (Incorporated Places and Census Designated Places) 657 2% 2,426 8% 32,330
Consolidated City3 N/A N/A N/A N/A 8
Alaska Native Regional Corporation 3 25% 4 33% 12
American Indian Area/Alaska Native Area/Hawaiian Home Land 12 2% 36 5% 704
Specified American Indian Area-Tribal Census Tract3 N/A N/A N/A N/A 493
Specified American Indian Area-Tribal Census Tract-Tribal Block Group3 N/A N/A N/A N/A 935
Metropolitan Statistical/Micropolitan Statistical Area4 535 57% 915 98% 935
Principal City of Metropolitan or Micropolitan Statistical Areas 418 32% 822 64% 1,294
Metropolitan Division 37 100% 37 100% 37
Combined Statistical Area 180 98% 184 100% 184
Urban Area 431 16% 947 36% 2,637
Congressional Districts - 119th 435 100% 435 100% 435
Delegate District - 119th (at Large, District of Columbia) 1 100% 1 100% 1
Resident Commissioner District - 119th (at Large, Puerto Rico) 1 100% 1 100% 1
State Legislative District3, 5 (Upper) N/A N/A N/A N/A 1,964
State Legislative District3, 5 (Lower) N/A N/A N/A N/A 4,879
Public Use Microdata Area 2,486 100% 2,486 100% 2,486
5 digit ZIP Code Tabulation Area3 N/A N/A N/A N/A 33,772
School District (Elementary) 82 4% 308 16% 1,978
School District (Secondary) 92 18% 212 42% 501
School District (Unified) 927 9% 3,082 28% 10,901
Total 7,451 2% 15,103 3% 464,020
Page Last Revised - September 3, 2025