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87 datasets

Interagency Ecological Program: Fish catch and water quality data from the Sacramento River floodplain and tidal slough, collected by the Yolo Bypass Fish Monitoring Program, 1998-2023.

Published by: California Department of Water Resources
Last updated: Tuesday, June 30, 2026
File types:

Largely supported by the Interagency Ecological Program (IEP), California Department of Water Resources (DWR) has operated a fish monitoring program i...

Urban Water Data - Drought Planning and Management

Published by: California Department of Water Resources
Last updated: Wednesday, July 1, 2026
File types: CSV, PDF

This data package aims to pilot an approach for providing usable data for analyses related to drought planning and management for urban water supplier...

IWFM Demand Calculator (IDC)

Published by: California Department of Water Resources
Last updated: Tuesday, June 30, 2026
File types: ZIP

Publicly available version of IDC (IWFM Demand Calculator)...

County Land Use Surveys

Published by: California Department of Water Resources
Last updated: Wednesday, July 1, 2026
File types: ZIP

This is collection of DWR County Land Use Surveys. You may scroll the list below to download any individual survey of interest. Historic County L...

National Hydrography Data - NHD and 3DHP

Published by: California Department of Water Resources
Last updated: Wednesday, July 1, 2026
File types: WEBSITE, ARCGIS GEOSERVICES REST API, PDF, ZIP, CSV

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

California's Groundwater Update 2020 (Bulletin 118)

Published by: California Department of Water Resources
Last updated: Wednesday, July 1, 2026
File types: PDF, XLSX, XLS, ZIP, SHP

California's Groundwater Update 2020 (CalGW) is California's foremost technical publication on groundwater in the state of California. CalGW, formally...

Statewide Crop Mapping

Published by: California Department of Water Resources
Last updated: Tuesday, June 30, 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...