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150 datasets

Polycyclic Aromatic Hydrocarbon Samples - 2011-2024 - OSPR [ds714]

Published by: California Department of Fish and Wildlife
Last updated: Tuesday, April 7, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Polycyclic aromatic hydrocarbons (PAHs) are a class of organic compounds found in the environment associated with natural and anthropogenic activities...

Groundwater Basin Boundary Descriptions - North Coast Region (1-XXX Basins)

Published by: California Department of Water Resources
Last updated: Tuesday, April 7, 2026
File types: PDF

This dataset includes the official groundwater basin boundary descriptions for California's 515 groundwater basins. To make locating descriptions easi...

Population Percentage Within a Quarter Mile of Alcohol Outlets

Published by: California Department of Public Health
Last updated: Tuesday, April 7, 2026
File types: PDF, CSV, ZIP

This table contains data on the percentage of the total population living within 1/4 mile of alcohol outlets (off-sale, on-sale, total) for California...

Earthquake Zones of Required Investigation Maps and Reports

Published by: California Department of Conservation
Last updated: Tuesday, April 7, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

The Alquist-Priolo Earthquake Fault Zoning Act (1972) and the Seismic Hazards Mapping Act (1990) direct the State Geologist to delineate regulatory &q...

Groundwater Basin Boundary Descriptions - Lahontan Region (6-XXX Basins)

Published by: California Department of Water Resources
Last updated: Tuesday, April 7, 2026
File types: PDF

This dataset includes the official groundwater basin boundary descriptions for California's 515 groundwater basins. To make locating descriptions easi...

Number of licensed day care center slots per 1,000 children aged 0-5 years

Published by: California Department of Public Health
Last updated: Tuesday, April 7, 2026
File types: PDF, XLSX, ZIP

This table contains data on the number of licensed day care center slots (facility capacity) per 1,000 children aged 0-5 years in California, its regi...

Percent of Household Overcrowding (> 1.0 persons per room) and Severe Overcrowding (> 1.5 persons per room)

Published by: California Department of Public Health
Last updated: Tuesday, April 7, 2026
File types: PDF, CSV, XLSX, ZIP

This dataset contains two tables on the percent of household overcrowding (> 1.0 persons per room) and severe overcrowding (> 1.5 persons per room) fo...

Granted Lands

Published by: California State Lands Commission
Last updated: Friday, April 3, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

SummaryThis INCOMPLETE dataset illustrates California's Granted public trust lands. Parcel digitization is currently UNDER DEVELOPMENT and approximate...

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. ...

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. ...