acs1: Query ACS 1-Year Estimates

API: census.gov:us-census-bureau-api
Endpoint: /{year}/acs/acs1
Response format: text/plain
Charset: utf-8
Auth: api_key
Method: GET
Last Status: 200
Latency: 1832ms

Description

Retrieves data from the American Community Survey (ACS) 1-Year Estimates for populations of 65,000 or more.

Parameters (5)

for (string, query, required)

Geographic level to query

get (string, query, required)

Comma-separated list of variables to retrieve

in (string, query, optional)

Geographic filter

key (string, query, optional)

Optional API key

year (string, path, required)

Data vintage year

Examples (2)

American Community Survey 1-Year Estimates openapi-spec
curl 'https://api.census.gov/data/2022/acs/acs1?get=NAME%2CB01001_001E&for=state%3A06&in=state%3A06'
import requests

resp = requests.get(
    "https://api.census.gov/data/2022/acs/acs1",
    params={
        'get': 'NAME,B01001_001E',
        'for': 'state:06',
        'in': 'state:06',
    },
)
data = resp.json()
import zingu_apis

api = zingu_apis.api("census")
result = api.fetch("{year}/acs/acs1", get="NAME,B01001_001E", for="state:06", in="state:06")

for item in result:
    print(item)
const resp = await fetch("https://api.census.gov/data/2022/acs/acs1?get=NAME%2CB01001_001E&for=state%3A06&in=state%3A06");
const data = await resp.json();
Query ACS 1-Year Estimates openapi-spec
curl 'https://api.census.gov/data/2022/acs/acs1'
import requests

resp = requests.get("https://api.census.gov/data/2022/acs/acs1")
data = resp.json()
import zingu_apis

api = zingu_apis.api("census")
result = api.fetch("{year}/acs/acs1")

for item in result:
    print(item)
const resp = await fetch("https://api.census.gov/data/2022/acs/acs1");
const data = await resp.json();

Probe History

Latency

Status Codes

TimeStatusLatencySize
2026-04-16 16:45:00.229430 200 1832ms
2026-04-16 04:06:53.494649 400 573ms
2026-04-16 03:13:47.270440 200 465ms
2026-04-15 02:35:23.348397 200 480ms
2026-04-15 00:51:53.422126 400 493ms
2026-04-14 03:20:36.951846 400 496ms
2026-04-14 01:59:06.338349 200 1406ms
2026-04-12 14:14:45.861055 200 465ms
2026-04-12 12:30:03.232446 400 1469ms
2026-04-10 06:43:42.397482 400 430ms
2026-04-10 01:29:25.075007 200 1136ms
2026-04-09 01:53:21.063197 200 1427ms
2026-04-09 00:11:24.647666 400 478ms
2026-03-23 10:35:42.662061 400 451ms