California Water Rights
~41,353 water rights records
Points of Diversion & Use by County
Mapped diversion and place-of-use sites filed with the state engineer, via WaDE.
Humboldt County3,455 sites
Sonoma County2,734 sites
Mendocino County2,694 sites
San Joaquin County2,313 sites
Napa County1,894 sites
Lassen County1,675 sites
San Bernardino County1,478 sites
Trinity County1,455 sites
Shasta County1,394 sites
Monterey County1,334 sites
Siskiyou County1,331 sites
Modoc County1,311 sites
El Dorado County1,308 sites
Tehama County1,208 sites
Los Angeles County1,200 sites
San Luis Obispo County1,199 sites
Tulare County1,198 sites
Kern County1,162 sites
Sacramento County1,084 sites
Riverside County975 sites
Showing top 20 of 62 counties
Top Water Right Holders
By permitted flow across the state's 500 largest rights.
Shea Ranch31,104 CFS
Se Land Llc20,000 CFS
Kings River Water Association15,864 CFS
Redtree Partners Lp6,430 CFS
Brugnara Properties Vii4,177 CFS
East Bay Municipal Utility District3,064 CFS
Fresno Irrigation District2,293 CFS
Lon Tatom2,005 CFS
Jason Smith2,000 CFS
Citizens Development Corporation Cdc1,782 CFS
Celestino Esmeralda Perdigao Trust1,697 CFS
Silva Family Irrevocable Trust1,600 CFS
Reclamation District #1081,437 CFS
California Department Of Fish And Wildlife1,328 CFS
Darice Nishihara1,200 CFS
Full California Water Rights Map
Interactive map with proximity analysis, priority date filters, and export.