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116 datasets

CA Geographic Boundaries

Published by: California Department of Technology
Last updated: Friday, May 3, 2024
File types: SHP

This dataset contains shapefile boundaries for CA State, counties and places from the US Census Bureau's 2023 MAF/TIGER database. Current geography in...

City and County Boundary Line Changes

Published by: California Department of Tax and Fee Administration
Last updated: Friday, April 3, 2026
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 ...

California County Boundaries and Identifiers

Published by: California Department of Technology
Last updated: Wednesday, October 1, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

Note: The schema changed in February 2025 - please see below. We will post a roadmap of upcoming changes, but service URLs and schema are now stable. ...

California County Boundaries and Identifiers with Coastal Buffers

Published by: California Department of Technology
Last updated: Wednesday, October 1, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

Note: The schema changed in February 2025 - please see below. We will post a roadmap of upcoming changes, but service URLs and schema are now stable. ...

BOE CityCounty

Published by: California Department of Tax and Fee Administration
Last updated: Monday, April 6, 2026
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 ...

BOE CityAnx2027

Published by: California Department of Tax and Fee Administration
Last updated: Monday, April 6, 2026
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 ...

City and County Boundary Changes by Roll Year

Published by: California Department of Tax and Fee Administration
Last updated: Friday, April 3, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

This map is a compilation of the final set of city and county boundary changes filed with the California State Board of Equalization in accordance wit...

Operational Division Boundaries - OSPR [ds355]

Published by: California Department of Fish and Wildlife
Last updated: Monday, April 6, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The shoreline operational divisions are organized and named according to County boundaries. Within county domains, divisions are boundaries guided by ...

California City Boundaries and Identifiers

Published by: California Department of Technology
Last updated: Wednesday, October 1, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

Note: The schema changed in February 2025 - please see below. We will post a roadmap of upcoming changes, but service URLs and schema are now stable. ...

Watershed Boundary Dataset (WBD)

Published by: California Department of Water Resources
Last updated: Monday, April 6, 2026
File types: FILE GEODATABASE OR SHAPEFILE, ARCGIS GEOSERVICES REST API, WEBSITE, PDF

The Watershed Boundary Dataset (WBD) from USGS' The National Map (TNM) defines the perimeter of drainage areas formed by the terrain and other landsca...