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345 datasets

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. ...

Airborne electromagnetic (AEM) Pilot Studies

Published by: California Department of Water Resources
Last updated: Saturday, April 4, 2026
File types: PDF, ZIP

Airborne electromagnetic (AEM) geophysical data were collected in California as a part of AEM pilot studies. The purpose of the AEM pilot studies was ...

DSM2

Published by: California Department of Water Resources
Last updated: Saturday, April 4, 2026
File types: HTML, ZIP, APPLICATION/X-MSDOS-PROGRAM, PDF

DSM2 models, data, and other resources. The links are in chronological order, with most recent releases at the top. * The Delta Simulation Model I...

Aspen Characteristics - Inyo National Forest [ds365]

Published by: California Department of Fish and Wildlife
Last updated: Saturday, April 4, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The database represents point locations and associated stand assessment data collected within known aspen stands in the Inyo National Forest, Inyo Cou...

CA Wellness Plan Data Reference Guide

Published by: California Department of Public Health
Last updated: Saturday, April 4, 2026
File types: XLSX, ZIP

The purpose of the California Wellness Plan (CWP) Data Reference Guide (Reference Guide) is to provide access to the lowest-level data for each CWP Ob...

Aspen Delineation - Inyo National Forest [ds366]

Published by: California Department of Fish and Wildlife
Last updated: Saturday, April 4, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The database represents delineations of known aspen stands where aspen assessments were collected in the Inyo National Forest, Inyo County, California...

California Medicaid Eligibility Groups by Medi-Cal Aid Code

Published by: California Department of Health Care Services
Last updated: Saturday, April 4, 2026
File types: CSV, ZIP

This dataset identifies California’s eligibility groups by aid code. California uses aid codes to account for eligibility group populations and the e...

SB 535 Disadvantaged Communities 2022

Published by: California Office of Environmental Health Hazard Assessment
Last updated: Saturday, April 4, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

This map shows the 2022 disadvantaged communities designated by CalEPA for the purpose of SB 535. These areas represent: Highest scoring 25% of cen...

Vegetation - Canada de los Osos Ecological Reserve [ds2943]

Published by: California Department of Fish and Wildlife
Last updated: Saturday, April 4, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The vegetation map was created in ARCGIS using an orthophoto base layer from the National Agricultural Imagery Program (NAIP) with the Canada de los O...

Interagency Ecological Program: Discrete water quality monitoring in the Sacramento-San Joaquin Bay-Delta, collected by the Environmental Monitoring Program, 2000-2018.

Published by: California Department of Water Resources
Last updated: Saturday, April 4, 2026
File types:

The Interagency Ecological Program’s (IEP) Environmental Monitoring Program (EMP) has historically monitored discrete water quality and nutrients in t...