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173 datasets

Voter Registration

Published by: California Department of Public Health
Last updated: Sunday, April 26, 2026
File types: PDF, CSV, ZIP

This table contains data on the percent of adults (18 years or older) who are registered voters and the percent of adults who voted in general electio...

DSM2 Georeferenced Model Grid

Published by: California Department of Water Resources
Last updated: Monday, April 27, 2026
File types: ZIP, PDF, ARCGIS DESKTOP MAP PACKAGE, ARCGIS PRO MAP PACKAGE

ArcGIS and QGIS map packages, with ESRI shapefiles for the DSM2 Model Grid. These are not finalized products. Locations in these shapefiles are approx...

Vegetation - Marin County [ds2960]

Published by: California Department of Fish and Wildlife
Last updated: Monday, April 27, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The Tamalpais Lands Collaborative (One Tam; https://www.onetam.org/), the network of organizations that manage lands on Mount Tamalpais in Marin Count...

Mid-Depth Rocky & Soft-Bottom Ecosystems, California South Coast MPA Baseline Study, 2011 to 2012

Published by: California Ocean Protection Council
Last updated: Friday, April 24, 2026
File types: PDF, ZIP, CSV

Seafloor habitats deeper than 100 meters make up an estimated 29% (1840 km2) of state waters in southern California, yet they are sampled with far les...

North Coast State of the Region, Snapshots and Supplemental Reports All Habitats 2013 to 2017

Published by: California Ocean Protection Council
Last updated: Friday, April 24, 2026
File types: PDF

Learn about the biological, ecological, oceanographic, and socioeconomic conditions around the time of marine protected area (MPA) implementation on t...

Surface Water - Chemistry Results - CEDEN Augmentation

Published by: California State Water Resources Control Board
Last updated: Wednesday, April 15, 2026
File types: CSV, PDF

This dataset includes field and lab chemistry data that has been submitted to the [California Environmental Data Exchange Network](https://ceden.water...

National Hydrography Data - NHD and 3DHP

Published by: California Department of Water Resources
Last updated: Monday, April 27, 2026
File types: PDF, ZIP, WEBSITE, ARCGIS GEOSERVICES REST API, CSV, WEB VIDEOS

The USGS National Hydrography Dataset (NHD) downloadable data collection from The National Map (TNM) is a comprehensive set of digital spatial data th...

DWR's Basin Characterization Program

Published by: California Department of Water Resources
Last updated: Monday, April 27, 2026
File types: .ZIP, ZIP, FILE GEODATABASE, PDF

DWR has a long history of studying and characterizing California’s groundwater aquifers as a part of [California’s Groundwater (Bulletin 118)](https:/...

South Coast State of the Region Report, Snapshots and Supplemental Reports All Habitats 2011-2015

Published by: California Ocean Protection Council
Last updated: Friday, April 24, 2026
File types: PDF

State of the South Coast Region-Results from Baseline Monitoring of Marine Protected Areas 2011-2015. Learn about the biological, ecological, oceanogr...

SVSim: Sacramento Valley Groundwater-Surface Water Simulation Model

Published by: California Department of Water Resources
Last updated: Monday, April 27, 2026
File types: ZIP, PDF, CSV, XLSX, .ZIP

The Department of Water Resources (DWR) has developed a new model, the Sacramento Valley Groundwater-Surface Water Simulation Model (SVSim). This new ...