California water providers — page 5
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.
- City of KingsburgCA1010019 · CWS · Population served: 13,540
- Westborough Water DistrictCA4110027 · CWS · Population served: 13,486
- Tud - Upper Basin Water SystemCA5510012 · CWS · Population served: 13,280
- Palomar Christian Conference CenterCA3701982 · CWS · Population served: 13,050
- Indian Hills CampCA3701476 · CWS · Population served: 13,032
- Muscoy Mwc No. 1CA3610031 · CWS · Population served: 13,000
- Sbdno County Service Area 70jCA3610125 · CWS · Population served: 12,843
- Yocha Dehe Potable Water System090605107 · CWS · Population served: 12,800
- Big Bear City CsdCA3610008 · CWS · Population served: 12,738
- City of Grover Beach Public Works DeptCA4010004 · CWS · Population served: 12,701
- City of LindsayCA5410006 · CWS · Population served: 12,659
- Camp Pendleton (NORTH)CA3710700 · CWS · Population served: 12,651
- Los Angeles Cwwd 40, Reg. 38-Lake LaCA1910005 · CWS · Population served: 12,568
- City of DixonCA4810009 · CWS · Population served: 12,540
- Cal-Water Service Co.-MarysvilleCA5810001 · CWS · Population served: 12,419
- Sycuan090605024 · CWS · Population served: 12,350
- City of Newman-Water DepartmentCA5010013 · CWS · Population served: 12,207
- Thermalito Water & Sewer DistCA0410008 · CWS · Population served: 12,136
- City of FortunaCA1210006 · CWS · Population served: 12,133
- Montecito Water DistCA4210007 · CWS · Population served: 11,962
- Signal Hill - City, Water Dept.CA1910149 · CWS · Population served: 11,848
- Town of HillsboroughCA4110016 · CWS · Population served: 11,766
- City of SonomaCA4910012 · CWS · Population served: 11,725
- Crestline Village Cwd - Division 10CA3610015 · CWS · Population served: 11,650
- Greenfield County WdCA1510024 · CWS · Population served: 11,590
- Ccwd - Ebbetts PassCA0510016 · CWS · Population served: 11,545
- Los Angeles Cwwd 40, R 24,27,33-PearblsmCA1910203 · CWS · Population served: 11,509
- City of Bell GardensCA1910108 · CWS · Population served: 11,437
- City of MendotaCA1010021 · CWS · Population served: 11,404
- Edwards Afb - Main BaseCA1510701 · CWS · Population served: 11,316
- Red Hawk Casino - Shingle Springs090600058 · CWS · Population served: 11,268
- Scotts Valley Water DistrictCA4410013 · CWS · Population served: 11,197
- City of ExeterCA5410003 · CWS · Population served: 11,169
- City of AndersonCA4510001 · CWS · Population served: 11,147
- Cal-Water Service Co.-OrovilleCA0410005 · CWS · Population served: 11,106
- Tud - Sonora/Jamestown Water SystemCA5510001 · CWS · Population served: 11,054
- Casitas Municipal Water DistCA5610024 · CWS · Population served: 11,005
- Sierra Madre-City, Water Dept.CA1910148 · CWS · Population served: 11,000
- Sonoma State UniversityCA4910027 · CWS · Population served: 10,986
- City of HealdsburgCA4910005 · CWS · Population served: 10,985
- Del Oro Water Co.-Paradise PinesCA0410011 · CWS · Population served: 10,940
- Gswc - WillowbrookCA1910072 · CWS · Population served: 10,793
- Table Mountain Rancheria090600154 · CWS · Population served: 10,675
- California Institution For MenCA3610850 · CWS · Population served: 10,667
- City of Shasta LakeCA4510006 · CWS · Population served: 10,657
- California Water Service Co. - DixonCA4810002 · CWS · Population served: 10,623
- City of Rio VistaCA4810004 · CWS · Population served: 10,489
- Plumas LakeCA5805001 · CWS · Population served: 10,464
- City of CloverdaleCA4910002 · CWS · Population served: 10,398
- City of FarmersvilleCA5410004 · CWS · Population served: 10,243
- South Mesa WcCA3310017 · CWS · Population served: 10,108
- Scwa - Arden Park VistaCA3410002 · CWS · Population served: 10,101
- Valley Water Co.CA1910166 · CWS · Population served: 10,070
- Cal-Am Water Company - East PasadenaCA1910020 · CWS · Population served: 9,949
- Lake Henshaw Resort Inc.CA3700900 · CWS · Population served: 9,913
- Ccwd - Jenny LindCA0510006 · CWS · Population served: 9,861
- Golden Hills CsdCA1510045 · CWS · Population served: 9,857
- City of BlytheCA3310003 · CWS · Population served: 9,798
- Winton Water & Sanitary DistCA2410010 · CWS · Population served: 9,745
- San Gabriel Valley Water Co-Montebello 1CA1910189 · CWS · Population served: 9,630
- Viejas Community System090600158 · CWS · Population served: 9,600
- City of Orange CoveCA1010023 · CWS · Population served: 9,525
- Myoma Dunes Mutual Water CompanyCA3310051 · CWS · Population served: 9,445
- Georgetown Divide PudCA0910013 · CWS · Population served: 9,434
- City of HuronCA1010044 · CWS · Population served: 9,306
- La Canada Irrigation Dist.CA1910054 · CWS · Population served: 9,300
- City of Live OakCA5110001 · CWS · Population served: 9,285
- California State FairCA3410026 · CWS · Population served: 9,280
- Placerville, City of - MainCA0910003 · CWS · Population served: 9,224
- Rubio Canon Land & Water AssociationCA1910140 · CWS · Population served: 9,215
- Paradise Irrigation DistrictCA0410007 · CWS · Population served: 9,142
- Nevada Id - Lake WildwoodCA2910023 · CWS · Population served: 9,108
- City of TehachapiCA1510020 · CWS · Population served: 9,094
- Clear Creek Csd-AndersonCA4510016 · CWS · Population served: 8,900
- Guadalupe Water DepartmentCA4210003 · CWS · Population served: 8,897
- Cal Am - West PlacerCA3110150 · CWS · Population served: 8,861
- Awa Buckhorn PlantCA0310012 · CWS · Population served: 8,791
- City of WaterfordCA5010006 · CWS · Population served: 8,788
- City of NeedlesCA3610032 · CWS · Population served: 8,766
- Tract 349 Mutual Water Co.CA1910160 · CWS · Population served: 8,700
- Naval Base Ventura County, Port HuenemeCA5610701 · CWS · Population served: 8,625
- City of GonzalesCA2710007 · CWS · Population served: 8,327
- Orosi Public Utility DistrictCA5410008 · CWS · Population served: 8,300
- City of OrlandCA1110001 · CWS · Population served: 8,298
- City of CorningCA5210001 · CWS · Population served: 8,244
- La Puente Valley CwdCA1910060 · CWS · Population served: 8,243
- Mammoth CwdCA2610001 · CWS · Population served: 8,234
- Gswc - HollydaleCA1910195 · CWS · Population served: 8,099
- Firebaugh CityCA1010005 · CWS · Population served: 8,096
- Pismo Beach Water DepartmentCA4010008 · CWS · Population served: 8,036
- Templeton CsdCA4010019 · CWS · Population served: 8,011
- California-American Larkfield (PUC)CA4910023 · CWS · Population served: 7,913
- Kirkwood Meadows Public Utility DistrictCA0210002 · CWS · Population served: 7,851
- City of WoodlakeCA5410020 · CWS · Population served: 7,846
- Florin County Water DistrictCA3410033 · CWS · Population served: 7,831
- City of YrekaCA4710011 · CWS · Population served: 7,825
- City of SusanvilleCA1810001 · CWS · Population served: 7,811
- Delhi CwdCA2410006 · CWS · Population served: 7,784
- Valencia Heights Water Co.CA1910163 · CWS · Population served: 7,775
- Highlands Mutual Water CompanyCA1710003 · CWS · Population served: 7,772