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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 Suppression page for more details and to learn how population thresholds are applied.

Selected Geographic Areas Published in the 2019 American Community Survey 1-year 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
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	840	26%	1,913	59%	3,220
County Subdivision²	226	1%	1,192	3%	36,622
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	74,001
Block Group³	N/A	N/A	N/A	N/A	220,333
Place (incorporated places and census designated places)	634	2%	2,333	8%	29,573
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	13	2%	33	5%	695
Specified American Indian Area-Tribal Census Tract³	N/A	N/A	N/A	N/A	483
Specified American Indian Area-Tribal Census Tract-Tribal Block Group³	N/A	N/A	N/A	N/A	917
Metropolitan Statistical/Micropolitan Statistical Area⁴	518	55%	909	97%	938
Principal City of Metropolitan or Micropolitan Statistical Areas	403	32%	800	63%	1,268
Metropolitan Division	31	100%	31	100%	31
Combined Statistical Area	172	98%	175	100%	175
Combined New England City and Town Area	7	100%	7	100%	7
New England City and Town Area	25	63%	37	93%	40
Principal Cities of New England City and Town Areas	19	32%	42	71%	59
New England City and Town Area Division	11	100%	11	100%	11
Urban Area	438	12%	892	25%	3,592
Congressional Districts - 116th	435	100%	435	100%	435
Delegate District - 116th (at Large, District of Columbia)	1	100%	1	100%	1
Resident Commissioner District - 116th (at Large, Puerto Rico)	1	100%	1	100%	1
State Legislative District^{3, 5} (Upper)	N/A	N/A	N/A	N/A	1,961
State Legislative District^{3, 5} (Lower)	N/A	N/A	N/A	N/A	4,833
Public Use Microdata Area	2,378	100%	2,378	100%	2,378
5 digit ZIP Code Tabulation Area³	N/A	N/A	N/A	N/A	33,120
School District (Elementary)	76	4%	297	15%	1,973
School District (Secondary)	91	18%	209	42%	502
School District (Unified)	882	8%	3,030	28%	10,893
Total	7,270	2%	14,796	3%	428,293

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.

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 2019.

^*Counts based on geographic area boundaries as of January 1, 2019.

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

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