US Census Bureau Geographies API

openapi: 3.1.0
info:
  title: Business Dynamics Statistics 2010 Geographies 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: Geographies
  description: Address to coordinates plus Census geographies
paths:
  /geographies/onelineaddress:
    get:
      summary: Geocode A One-Line Address With Census Geographies
      description: Like `/locations/onelineaddress` but additionally attaches the matching state, county, tract, and block per the requested vintage.
      operationId: geographiesOnelineAddress
      tags:
      - Geographies
      parameters:
      - name: address
        in: query
        required: true
        schema:
          type: string
      - $ref: '#/components/parameters/BenchmarkParam'
      - $ref: '#/components/parameters/VintageParam'
      - $ref: '#/components/parameters/FormatParam'
      responses:
        '200':
          description: Geographies match envelope
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GeographiesResponse'
  /geographies/address:
    get:
      summary: Geocode A Structured Address With Census Geographies
      description: Structured-address variant of the geographies geocoder.
      operationId: geographiesAddress
      tags:
      - Geographies
      parameters:
      - name: street
        in: query
        required: true
        schema:
          type: string
      - name: city
        in: query
        required: false
        schema:
          type: string
      - name: state
        in: query
        required: false
        schema:
          type: string
      - name: zip
        in: query
        required: false
        schema:
          type: string
      - $ref: '#/components/parameters/BenchmarkParam'
      - $ref: '#/components/parameters/VintageParam'
      - $ref: '#/components/parameters/FormatParam'
      responses:
        '200':
          description: Geographies match envelope
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GeographiesResponse'
  /geographies/coordinates:
    get:
      summary: Reverse Geocode Coordinates With Census Geographies
      description: Reverse-geocoder variant that returns Census geographies for the coordinate.
      operationId: geographiesCoordinates
      tags:
      - Geographies
      parameters:
      - name: x
        in: query
        required: true
        schema:
          type: number
      - name: y
        in: query
        required: true
        schema:
          type: number
      - $ref: '#/components/parameters/BenchmarkParam'
      - $ref: '#/components/parameters/VintageParam'
      - $ref: '#/components/parameters/FormatParam'
      responses:
        '200':
          description: Geographies match envelope
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GeographiesResponse'
components:
  schemas:
    GeographiesResponse:
      type: object
      properties:
        result:
          type: object
          properties:
            input:
              type: object
            addressMatches:
              type: array
              items:
                allOf:
                - $ref: '#/components/schemas/AddressMatch'
                - type: object
                  properties:
                    geographies:
                      type: object
                      additionalProperties:
                        type: array
                        items:
                          type: object
    AddressMatch:
      type: object
      properties:
        matchedAddress:
          type: string
        coordinates:
          type: object
          properties:
            x:
              type: number
            y:
              type: number
        tigerLine:
          type: object
          properties:
            tigerLineId:
              type: string
            side:
              type: string
        addressComponents:
          type: object
          properties:
            fromAddress:
              type: string
            toAddress:
              type: string
            preQualifier:
              type: string
            preDirection:
              type: string
            preType:
              type: string
            streetName:
              type: string
            suffixType:
              type: string
            suffixDirection:
              type: string
            suffixQualifier:
              type: string
            city:
              type: string
            state:
              type: string
            zip:
              type: string
  parameters:
    VintageParam:
      name: vintage
      in: query
      required: true
      description: Geography vintage (`Current_Current`, `Census2020_Current`, `ACS2023_Current`, etc.).
      schema:
        type: string
    FormatParam:
      name: format
      in: query
      required: false
      description: Response format.
      schema:
        type: string
        enum:
        - json
        - jsonp
        default: json
    BenchmarkParam:
      name: benchmark
      in: query
      required: true
      description: Reference dataset benchmark (`Public_AR_Current`, `Public_AR_Census2020`, `Public_AR_Census2010`).
      schema:
        type: string
        examples:
        - Public_AR_Current
  securitySchemes:
    ApiKeyQuery:
      type: apiKey
      in: query
      name: key