US Census Bureau 2020 API

openapi: 3.1.0
info:
  title: Business Dynamics Statistics 2010 2020 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: '2020'
paths:
  /Census2020/State_County/MapServer/{layerId}/query:
    get:
      summary: Query 2020 Census State And County Features
      description: Query the 2020 census vintage State_County map service.
      operationId: query2020StateCounty
      tags:
      - '2020'
      parameters:
      - $ref: '#/components/parameters/LayerIdParam'
      - $ref: '#/components/parameters/WhereParam'
      - $ref: '#/components/parameters/FormatParam'
      responses:
        '200':
          description: Feature collection
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/FeatureCollection'
components:
  parameters:
    LayerIdParam:
      name: layerId
      in: path
      required: true
      description: Numeric ArcGIS layer ID within the parent map service.
      schema:
        type: integer
    FormatParam:
      name: f
      in: query
      required: false
      description: Output format.
      schema:
        type: string
        enum:
        - json
        - geojson
        - pjson
        - kmz
        - pbf
        - html
        default: json
    WhereParam:
      name: where
      in: query
      required: false
      description: SQL-like WHERE clause filtering attributes.
      schema:
        type: string
  schemas:
    FeatureCollection:
      type: object
      properties:
        type:
          type: string
          example: FeatureCollection
        features:
          type: array
          items:
            type: object
            properties:
              type:
                type: string
              geometry:
                type: object
              properties:
                type: object
  securitySchemes:
    ApiKeyQuery:
      type: apiKey
      in: query
      name: key