GET /{year}/acs/acs1
census.gov:us-census-bureau-api
Summary: American Community Survey 1-Year Estimates
Operation ID: getACS1Year
Auth: api_key
Operation ID: getACS1Year
Auth: api_key
Description
Retrieve ACS 1-year estimates for various demographic and economic variables. ACS provides detailed social, economic, housing, and demographic statistics.
Parameters (5)
for
(string, query, required)
Geography specification using FIPS codes. Format: 'geography_type:code' (e.g., 'state:06', 'county:037', 'state:*' for all).
get
(string, query, required)
Comma-separated list of variables to retrieve. Use 'NAME' for geography name and variable codes like 'B01001_001E' for estimates.
in
(string, query, optional)
Geography filter for nested geographies. Required when requesting counties, places, or other sub-state geographies.
key
(string, query, optional)
Optional API key for higher rate limits. Obtain at https://api.census.gov/data/key_signup.html
year
(string, path, required)
Survey year (e.g., 2022, 2021, 2020)
Examples (1)
| Title | Type | URL | Action |
|---|---|---|---|
| American Community Survey 1-Year Estimates | openapi-spec |
https://api.census.gov/data/2022/acs/acs1?get=NAME,B01001_001E&for=state:06&in=state:06 |
Probe History
Status Codes
| Time | Status | Latency | Size |
|---|---|---|---|
| 2026-03-23 10:35:42.662061 | 400 | 451ms |