State of California Open Data
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32 datasets

California Counties

  • Published by: California Department of Education
  • Last updated: Sunday, June 8, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This layer contains the boundaries for California’s 58 counties. County features are derived from the US Census Bureau's 2023 TIGER/Line database and ...

BOE CityCounty

  • Published by: California Department of Tax and Fee Administration
  • Last updated: Tuesday, June 3, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This map includes change areas for city and county boundaries filed in accordance with Government Code 54900. The initial dataset was first published ...

County Health Status Profiles

  • Published by: California Department of Public Health
  • Last updated: Saturday, June 7, 2025
  • File types: ZIP, CSV

County Health Status Profiles is an annually published report for the State of California by the California Department of Public Health in collaborati...

California County Boundary Public

  • Published by: California Department of Food and Agriculture
  • Last updated: Saturday, June 7, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

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California County Boundaries and Identifiers

  • Published by: California Department of Technology
  • Last updated: Monday, March 24, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

WARNING: This is a pre-release dataset and its fields names and data structures are subject to change. It should be considered pre-release until the...

DHCS County Code Reference Table

  • Published by: California Department of Health Care Services
  • Last updated: Saturday, June 7, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This reference table contains data elements for the 58 Counties in California that can be used to join to other data sets. This data includes the foll...

B-6, Comparison By County

  • Published by: California Franchise Tax Board
  • Last updated: Thursday, January 16, 2025
  • File types: CSV, PDF

This dataset contains personal income tax statistics for taxpayers by the county of residence based on tax returns. Population data comes from the Dep...

City and County Boundary Line Changes

  • Published by: California Department of Tax and Fee Administration
  • Last updated: Tuesday, June 3, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API

This map includes change areas for city and county boundaries filed in accordance with Government Code 54900. The initial dataset was first published ...

i03 DAU county cnty2018

  • Published by: California Department of Water Resources
  • Last updated: Tuesday, June 3, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Detailed Analysis Unit-(DAU) Convergence via County Boundary cnty18_1 for Cal-Fire, (*See metadata for CAL-FIRE cnty18_1), State of California.The exi...

California County Boundaries and Identifiers with Coastal Buffers

  • Published by: California Department of Technology
  • Last updated: Monday, March 24, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

WARNING: This is a pre-release dataset and its fields names and data structures are subject to change. It should be considered pre-release until the...

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