Cortexa research tool·social policy·uscensus

USCensus Get Population

Get population and demographic data from the US Census Bureau API. Access decennial census and American Community Survey (ACS) data at national, state, county, and city levels. No authentication key required for basic usage. Variables include total population, housing units, age groups, and race/ethnicity breakdowns. Useful for demographic research, urban planning, and social science analysis.

Livelast probed 2026-05-01 01:00Z· 79msCortexa

Status

The most recent probe succeeded. Safe to call from the agent today.

Last probed: 1d ago
Last success: 1d ago
Last latency: 79ms

Schema

JSON Schema the agent (or your API call) must match.

{
  "properties": {
    "dataset": {
      "description": "Dataset to query. Values: '2020/dec/pl' (2020 decennial), '2022/acs/acs5' (ACS 5-year 2022), '2021/acs/acs1' (ACS 1-year 2021). Default: 2022/acs/acs5",
      "type": [
        "string",
        "null"
      ]
    },
    "for": {
      "description": "Geographic unit. Examples: 'state:*' (all states), 'county:*' (all counties), 'state:06' (California), 'county:001&in=state:06' (Alameda County CA)",
      "type": "string"
    },
    "get": {
      "description": "Comma-separated variable codes to retrieve plus NAME. For 2020 decennial: 'P1_001N,NAME' (total pop). For ACS 5-year (B01003_001E=total pop, B19013_001E=median income, B01002_001E=median age). Example: 'NAME,B01003_001E,B19013_001E'",
      "type": "string"
    },
    "in": {
      "description": "Geographic filter for sub-national queries. Examples: 'state:06' (within California)",
      "type": [
        "string",
        "null"
      ]
    },
    "limit": {
      "description": "Maximum number of results to return",
      "type": [
        "integer",
        "null"
      ]
    }
  },
  "required": [
    "get",
    "for"
  ],
  "type": "object"
}

Examples (1)

Default USCensus Get Population call

public-safeinput

{
  "for": "",
  "get": ""
}

Expected response keys: success

Anonymous-safe example. Rate-limited; no sign-in required.

Identifiers

Catalog ID: tu_USCensus_get_population
Tool name: USCensus_get_population
Added: 2026-05-01 00:58Z
Tags: tooluniverse

USCensus Get Population

Livelast probed 2026-05-01 01:00Z· 79msCortexa

Schema

JSON Schema the agent (or your API call) must match.

{ "properties": { "dataset": { "description": "Dataset to query. Values: '2020/dec/pl' (2020 decennial), '2022/acs/acs5' (ACS 5-year 2022), '2021/acs/acs1' (ACS 1-year 2021). Default: 2022/acs/acs5", "type": [ "string", "null" ] }, "for": { "description": "Geographic unit. Examples: 'state:*' (all states), 'county:*' (all counties), 'state:06' (California), 'county:001&in=state:06' (Alameda County CA)", "type": "string" }, "get": { "description": "Comma-separated variable codes to retrieve plus NAME. For 2020 decennial: 'P1_001N,NAME' (total pop). For ACS 5-year (B01003_001E=total pop, B19013_001E=median income, B01002_001E=median age). Example: 'NAME,B01003_001E,B19013_001E'", "type": "string" }, "in": { "description": "Geographic filter for sub-national queries. Examples: 'state:06' (within California)", "type": [ "string", "null" ] }, "limit": { "description": "Maximum number of results to return", "type": [ "integer", "null" ] } }, "required": [ "get", "for" ], "type": "object" }