US Census Bureau

US Census Bureau Catalog API

Service directory

Documentation GitHub OpenAPI

Documentation

https://www.census.gov/data/developers/data-sets.html

https://www.census.gov/data/developers/guidance/api-user-guide.html

https://api.census.gov/data.html

https://www.census.gov/data/developers/guidance/microdata-api-user-guide.html

https://tigerweb.geo.census.gov/tigerwebmain/TIGERweb_apps.html

https://geocoding.geo.census.gov/geocoder/Geocoding_Services_API.html

https://www.census.gov/data/developers/data-sets/business-dynamics.html

https://www.census.gov/data/developers/data-sets/international-trade.html

Specifications

https://raw.githubusercontent.com/api-evangelist/us-census-bureau/refs/heads/main/openapi/us-census-bureau-catalog-api-openapi.yml

Schemas & Data

https://raw.githubusercontent.com/api-evangelist/us-census-bureau/refs/heads/main/json-schema/census-data-row-schema.json

https://raw.githubusercontent.com/api-evangelist/us-census-bureau/refs/heads/main/json-schema/census-dataset-metadata-schema.json

https://raw.githubusercontent.com/api-evangelist/us-census-bureau/refs/heads/main/json-structure/census-data-row-structure.json

Other Resources

https://api.census.gov/data.json

https://raw.githubusercontent.com/api-evangelist/us-census-bureau/refs/heads/main/json-ld/us-census-bureau-context.jsonld

https://raw.githubusercontent.com/api-evangelist/us-census-bureau/refs/heads/main/examples/census-acs5-get-example.json

https://raw.githubusercontent.com/api-evangelist/us-census-bureau/refs/heads/main/examples/census-discovery-list-example.json

https://raw.githubusercontent.com/api-evangelist/us-census-bureau/refs/heads/main/rules/census-data-api-rules.yml

https://raw.githubusercontent.com/api-evangelist/us-census-bureau/refs/heads/main/examples/census-pums-tabulate-example.json

https://tigerweb.geo.census.gov/arcgis/rest/services

https://geocoding.geo.census.gov/geocoder/

https://raw.githubusercontent.com/api-evangelist/us-census-bureau/refs/heads/main/examples/census-geocoder-onelineaddress-example.json

https://www.census.gov/popclock/

OpenAPI Specification

openapi: 3.1.0
info:
  title: Business Dynamics Statistics 2010 Catalog API
  description: 'Time-series API providing annual measures of establishment and firm

    dynamics for the United States — births, deaths, expansions, contractions,

    job creation, and job destruction — from 1978 through the latest reference

    year. Supports breakdowns by firm age, firm size, sector, state, and metro

    area.


    Endpoint family: `/data/timeseries/bds`.

    '
  version: '2026-05-25'
  contact:
    name: Census Bureau Center for Economic Studies
    url: https://www.census.gov/programs-surveys/bds.html
  license:
    name: Creative Commons Zero 1.0 (Public Domain)
    url: https://creativecommons.org/publicdomain/zero/1.0/
  termsOfService: https://www.census.gov/data/developers/about/terms-of-service.html
servers:
- url: https://api.census.gov/data
  description: Census Data API production base
security:
- ApiKeyQuery: []
tags:
- name: Catalog
  description: Service directory
paths:
  /:
    get:
      summary: List TIGERweb Service Catalog
      description: Returns the directory of folders and services hosted by the TIGERweb ArcGIS instance.
      operationId: getServiceCatalog
      tags:
      - Catalog
      parameters:
      - $ref: '#/components/parameters/FormatParam'
      responses:
        '200':
          description: Service catalog
          content:
            application/json:
              schema:
                type: object
components:
  parameters:
    FormatParam:
      name: f
      in: query
      required: false
      description: Output format.
      schema:
        type: string
        enum:
        - json
        - geojson
        - pjson
        - kmz
        - pbf
        - html
        default: json
  securitySchemes:
    ApiKeyQuery:
      type: apiKey
      in: query
      name: key