California water providers — page 9
Find published drinking-water records, providers, and official agency resources for California. Review sources, sample dates, and coverage.
Official drinking-water resources
The responsible agency may differ for tribal systems. Record availability and sample dates vary by provider.
Community systems appear first. Sort: Population served · A–Z
Public water systems
7,406 systems in the imported directory. Includes community systems, schools, workplaces, and other public systems.
- Kinneloa Irrigation Dist.CA1910035 · CWS · Population served: 1,960
- Pacific Union CollegeCA2810012 · CWS · Population served: 1,958
- Golden State Water Company - TanglewoodCA4210021 · CWS · Population served: 1,947
- Ventura Cwwd No. 17 - Bell CanyonCA5610003 · CWS · Population served: 1,946
- Hamilton Branch CsdCA3210010 · CWS · Population served: 1,874
- Arrowbear Park CwdCA3610110 · CWS · Population served: 1,856
- Fieldbrook Glendale C.S.D.CA1210020 · CWS · Population served: 1,845
- North Marin Wd - Pt. ReyesCA2110006 · CWS · Population served: 1,841
- San Joaquin County - Colonial HeightsCA3910002 · CWS · Population served: 1,841
- Inyo County Pwd - Lone PineCA1410009 · CWS · Population served: 1,835
- Vineyard Avenue Acres MwcCA5610029 · CWS · Population served: 1,820
- Searles Valley Minerals Operations IncCA3610854 · CWS · Population served: 1,818
- Christian Valley Park CsdCA3110034 · CWS · Population served: 1,800
- GatewayCA1300018 · CWS · Population served: 1,800
- Cal-Water Service Co.-Hamilton CityCA1110002 · CWS · Population served: 1,799
- Lake Elizabeth Mutual Water Co.CA1910056 · CWS · Population served: 1,790
- Madera Co Sa3-ParksdaleCA2010006 · CWS · Population served: 1,789
- Linden County Water DistrictCA3910019 · CWS · Population served: 1,784
- Tasco Spreckels Water CompanyCA2710023 · CWS · Population served: 1,772
- Cold Springs Water CoCA5510011 · CWS · Population served: 1,771
- Majestic Pines Community SdCA3710041 · CWS · Population served: 1,768
- Tud - PonderosaCA5510002 · CWS · Population served: 1,767
- Tud - Tuolumne Water SystemCA5510003 · CWS · Population served: 1,761
- Ventura Cwwd No. 38 - Lake SherwoodCA5610069 · CWS · Population served: 1,759
- Home Garden CsdCA1610007 · CWS · Population served: 1,750
- Penngrove Water Company (PUC)CA4910003 · CWS · Population served: 1,742
- Woodville Public Utility DistCA5410025 · CWS · Population served: 1,740
- Le Grand Comm Services DistCA2410011 · CWS · Population served: 1,739
- Seeley CwdCA1310013 · CWS · Population served: 1,729
- Golden State Water Co - Morongo Del SurCA3610063 · CWS · Population served: 1,717
- Cal American Wc - Rio PlazaCA5610010 · CWS · Population served: 1,709
- City of DunsmuirCA4710002 · CWS · Population served: 1,707
- Mt Baldy Homeowners Assn.CA3610033 · CWS · Population served: 1,700
- Cal Am - IsletonCA3410012 · CWS · Population served: 1,693
- Pcwa - WeimarCA3110035 · CWS · Population served: 1,689
- Del Oro Water Co-FerndaleCA1210007 · CWS · Population served: 1,662
- Westwood C.S.D.CA1810002 · CWS · Population served: 1,662
- Castle AirportCA2410700 · CWS · Population served: 1,650
- Madera Co Cmd19-ParkwoodCA2010004 · CWS · Population served: 1,637
- Avila Beach Community Services DistrictCA4000222 · CWS · Population served: 1,630
- Biola Community Services DistCA1010049 · CWS · Population served: 1,623
- Liberty Utilities - Mesa CrestCA1910241 · CWS · Population served: 1,619
- Richgrove Community Services DistrictCA5410024 · CWS · Population served: 1,617
- San Miguelito MwcCA4010003 · CWS · Population served: 1,600
- Callayomi County Water DistrictCA1710013 · CWS · Population served: 1,598
- Durham Irrigation DistrictCA0410003 · CWS · Population served: 1,581
- Devore WcCA3610117 · CWS · Population served: 1,574
- Oid-Oakdale Rural Water System #1CA5000433 · CWS · Population served: 1,570
- Lopez ProjectCA4010022 · CWS · Population served: 1,569
- Madera Co Sa1-Indian LakesCA2010011 · CWS · Population served: 1,562
- Nps Prns - BeachesCA2110502 · CWS · Population served: 1,560
- Pine Cove Water DistrictCA3310030 · CWS · Population served: 1,540
- Fall River Valley CsdCA4510008 · CWS · Population served: 1,535
- Los Alamos Community Services DistrictCA4210002 · CWS · Population served: 1,534
- Plumas Eureka CsdCA3210011 · CWS · Population served: 1,534
- Lake County Csa 2 - Spring ValleyCA1710018 · CWS · Population served: 1,531
- Bear River/Singley Hill090605125 · CWS · Population served: 1,530
- Buckingham Park Water DistrictCA1710011 · CWS · Population served: 1,521
- Hume Lake Christian Camps, IncCA1010013 · CWS · Population served: 1,519
- White Fence Farms Mwc No. 1CA1910249 · CWS · Population served: 1,518
- Julian Community Services DistrictCA3700909 · CWS · Population served: 1,517
- Little Potato Slough MutualCA3910022 · CWS · Population served: 1,510
- Buttonwillow CwdCA1510011 · CWS · Population served: 1,508
- Mariana Ranchos CwdCA3610030 · CWS · Population served: 1,502
- Lynwood Park Mutual Water Co.CA1910081 · CWS · Population served: 1,500
- Springville PudCA5410011 · CWS · Population served: 1,500
- Golden State Water Company - EdnaCA4010023 · CWS · Population served: 1,493
- Del Rey Community Serv DistCA1010035 · CWS · Population served: 1,491
- Midway Heights C. W. D.CA3110041 · CWS · Population served: 1,491
- Oakwood Lake Water District-SubdivisionCA3910023 · CWS · Population served: 1,479
- Guadalupe Valley MidCA4110005 · CWS · Population served: 1,472
- Los Molinos Comm. Services Dist.CA5210003 · CWS · Population served: 1,450
- Inverness Public Utility DistCA2110001 · CWS · Population served: 1,445
- Suburban Water Systems-Covina KnollsCA1910200 · CWS · Population served: 1,437
- Ventura Cwwd No. 19 - SomisCA5610015 · CWS · Population served: 1,429
- Tahoe Keys Water CompanyCA0910015 · CWS · Population served: 1,420
- Alameda PointCA0110016 · CWS · Population served: 1,400
- Highland Mobile Home ParkCA1410007 · CWS · Population served: 1,400
- West Almanor M.W.C.CA3210007 · CWS · Population served: 1,394
- California Water Service Co.-LancasterCA1910010 · CWS · Population served: 1,387
- Lebec County Water DistrictCA1510051 · CWS · Population served: 1,379
- Grizzly Flats Community ServicCA0910006 · CWS · Population served: 1,374
- Hydesville Co. W.D.CA1210019 · CWS · Population served: 1,366
- Garden Acres Mutual Water CoCA5602108 · CWS · Population served: 1,335
- City of Modesto - Del RioCA5010029 · CWS · Population served: 1,327
- Lower Lake County Water DistrictCA1710010 · CWS · Population served: 1,326
- Mccloud C.S.D.CA4710006 · CWS · Population served: 1,317
- Grizzly Lake Csd-DellekerCA3200104 · CWS · Population served: 1,314
- Rural North Vacaville Water DistrictCA4810013 · CWS · Population served: 1,313
- Mission Springs Conference CenterCA4400723 · CWS · Population served: 1,310
- Midway City Mutual WcCA3010097 · CWS · Population served: 1,305
- Pinecrest Permittees AssnCA5510004 · CWS · Population served: 1,298
- Willow Creek C.S.D.CA1210015 · CWS · Population served: 1,298
- Del Oro Water Company - Strawberry Div.CA5510007 · CWS · Population served: 1,295
- Slo Cwwd No. 23 - Santa MargaritaCA4010024 · CWS · Population served: 1,291
- California Village090600237 · CWS · Population served: 1,290
- Porterville Developmental CenterCA5410801 · CWS · Population served: 1,281
- Del Oro River Island Serv Terr #1CA5400665 · CWS · Population served: 1,280
- Stratford PudCA1610006 · CWS · Population served: 1,277
- Green Valley CwdCA1910244 · CWS · Population served: 1,275