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377 datasets

Metropolitan Planning Organization Boundaries

Published by: California Energy Commission
Last updated: Monday, April 6, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The metropolitan planning organization (MPO) polygon feature class provides California MPO legislative boundaries, primarily for regional planning app...

City and County Boundary Line Changes

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

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's Groundwater Basin Boundary Descriptions

Published by: California Department of Water Resources
Last updated: Monday, April 6, 2026
File types:

In conjunction with the release of [California’s Groundwater Update 2020](https://data.cnra.ca.gov/dataset/caglw_update2020), DWR has compiled a compr...

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 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. ...

i03 LegalDeltaBoundary

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

Department of Water Resources (DWR), Geodetic Branch, Cadastral Surveys reviewed this boundary in July, 2009, and agreed with the linework along with ...

i03 SuisunMarshBoundary

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

This feature class was digitized from the map, A.B. 1717, by Jeff Galef on August 22, 2012. The features were labeled as being in the Primary or Secon...

Quarantine Boundaries view layer for public

Published by: California Department of Food and Agriculture
Last updated: Monday, April 6, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

California Department of Food and AgriculturePlant Health and Pest Prevention ServicesPlant Data Analysis UnitView layer for public use. All active qu...

Administrative Boundaries: Sectors, Districts & Field Divisions

Published by: California Department of Parks and Recreation
Last updated: Sunday, April 5, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

California State Parks Field Division, District and Sector boundaries, 2024....