ExperimentalWe used data and feedback to make a user-friendly site. We’d love your feedback.
Back to data.ca.gov.

Search results

Search results

99 datasets

i03 Delta PrimarySecondary Zones

  • Published by: California Department of Water Resources
  • Last updated: Monday, April 20, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Delta Primary Zone Boundary The history of the primary zone boundary is as follows: the Primary Zone was defined in the 1992 Delta Flood Protection Ac...

Drinking Water - Public Water Systems Rates Information

  • Published by: California State Water Resources Control Board
  • Last updated: Tuesday, October 29, 2019
  • File types: CSV, PDF

Public Water Systems (PWS) submit their annual reports with rate information using the Electronic Annual Report (EAR) submission process on the Drinki...

California's Groundwater Update 2025 (Bulletin 118)

  • Published by: California Department of Water Resources
  • Last updated: Monday, April 20, 2026
  • File types: PDF, XLS, URL, .ZIP

California's Groundwater: Bulletin 118 Updates (CalGW Updates) are a continuing series of California's primary technical publications on groundwater r...

Medical Service Study Area Data Dictionary

  • Published by: Department of Health Care Access and Information
  • Last updated: Monday, April 20, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Field Name Data Type Description Statefp Number US Census Bureau unique identifier of the state Countyfp Number US Census...

Surface Water - Freshwater Harmful Algal Blooms

  • Published by: California State Water Resources Control Board
  • Last updated: Saturday, April 18, 2026
  • File types: PDF, CSV

Freshwater harmful algal bloom (HAB) data from the Freshwater Harmful Algal Bloom (FHAB) data system. The FHAB data system is the California State Wat...

Statewide Crop Mapping

  • Published by: California Department of Water Resources
  • Last updated: Monday, April 20, 2026
  • File types: DATA, ZIP, PDF, REST SERVICE, GDB, SHP, STORY MAPS

The California Department of Water Resources (DWR) has been collecting land use data throughout the state and using it to produce agricultural water u...

California Water Rights Annual Reports (Detail Summary List)

  • Published by: California State Water Resources Control Board
  • Last updated: Friday, August 29, 2025
  • File types: CSV, XLSX, DOC, PDF

This list includes detail information as reported annually under each water right as stored in the State Water Resources Control Board's "Electronic W...

California Water Rights Irrigation Use Annual Reports

  • Published by: California State Water Resources Control Board
  • Last updated: Friday, August 29, 2025
  • File types: CSV, XLSX, DOC, PDF

This list includes detail information for IRRIGATION WATER USE as reported annually under each water right as stored in the State Water Resources Con...

Rates of Preventable Hospitalizations for Selected Medical Conditions by County (LGHC Indicator)

  • Published by: Department of Health Care Access and Information
  • Last updated: Monday, April 20, 2026
  • File types: CSV, CHART, PDF, ZIP

The dataset contains hospitalization counts and rates, statewide and by county, for 10 ambulatory care sensitive conditions plus 4 composite measures....