Washington water providers — page 2
Find published drinking-water records, providers, and official agency resources for Washington. Review sources, sample dates, and coverage.
Official drinking-water resources
- Washington State Department of Health - Office of Drinking Water
- Washington Division of Environmental Health Office of Drinking Water Sentry Internet Database
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
4,691 systems in the imported directory. Includes community systems, schools, workplaces, and other public systems.
- City of CheneyWA5312400 · CWS · Population served: 16,954
- Naval Base Kitsap At BangorWA5302714 · CWS · Population served: 16,828
- Naval Air Station/Whidbey IslandWA5303420 · CWS · Population served: 16,595
- Gig Harbor Water DeptWA5327600 · CWS · Population served: 16,510
- North PeninsulaWA5305122 · CWS · Population served: 16,449
- City of SumnerWA5385120 · CWS · Population served: 16,438
- City of SnohomishWA5380915 · CWS · Population served: 16,367
- Chelan Co Pud 1WA5312284 · CWS · Population served: 16,190
- Coal Creek Utility DistrictWA5341750 · CWS · Population served: 15,989
- City of KelsoWA5338000 · CWS · Population served: 15,775
- Port Orchard Water DeptWA5368900 · CWS · Population served: 15,355
- Fruitland Mutual Water CompanyWA5326800 · CWS · Population served: 15,313
- City of SheltonWA5378170 · CWS · Population served: 15,089
- QuimperWA5305783 · CWS · Population served: 14,548
- Liberty Lake Sewer & Water DistrictWA5347150 · CWS · Population served: 14,500
- City of SequimWA5377620 · CWS · Population served: 14,293
- City of Bainbridge IslandWA5397650 · CWS · Population served: 13,491
- City of Dupont Water SystemWA5320500 · CWS · Population served: 13,141
- City of ProsserWA5369750 · CWS · Population served: 12,070
- Skyway Water & SewerWA5338800 · CWS · Population served: 12,036
- Beacon Hill Water & Sewer DistrictWA5315650 · CWS · Population served: 11,969
- Naval Base Kitsap At BremertonWA5303468 · CWS · Population served: 11,792
- Chehalis Water DepartmentWA5312250 · CWS · Population served: 11,718
- Hoquiam Water DepartmentWA5334350 · CWS · Population served: 11,456
- City of DuvallWA5320750 · CWS · Population served: 11,050
- City of LeavenworthWA5346500 · CWS · Population served: 11,041
- City of GrandviewWA5328970 · CWS · Population served: 11,010
- City of WoodlandWA5398200 · CWS · Population served: 10,640
- Manchester Water DistrictWA5350700 · CWS · Population served: 10,475
- City of OrtingWA5364500 · CWS · Population served: 10,332
- Lwwsd - South Shore Water SystemWA5395910 · CWS · Population served: 10,028
- Ne Sammamish Sewer & Water DistrictWA5375265 · CWS · Population served: 9,702
- Mountain View-Edgewood Water CoWA5356820 · CWS · Population served: 9,680
- Fairchild Air Force BaseWA5324350 · CWS · Population served: 9,544
- City of Airway HeightsWA5300650 · CWS · Population served: 9,489
- Consolidated Irrig Dist 19 System 1WA5310220 · CWS · Population served: 9,434
- City of Chelan Water DeptWA5312300 · CWS · Population served: 9,425
- Ocean Shores Water DeptWA5363008 · CWS · Population served: 9,347
- City of SelahWA5377400 · CWS · Population served: 9,331
- Birch Bay Water & Sewer DistrictWA5395904 · CWS · Population served: 9,046
- Toppenish Water DepartmentWA5388850 · CWS · Population served: 8,950
- Port Angeles CompositeWA5343296 · CWS · Population served: 8,872
- Othello Water DepartmentWA5364850 · CWS · Population served: 8,755
- Union Hill Water Association IncWA5390260 · CWS · Population served: 8,720
- Ephrata Water DepartmentWA5323650 · CWS · Population served: 8,718
- City of North BendWA5360100 · CWS · Population served: 8,710
- Town of SteilacoomWA5384000 · CWS · Population served: 8,545
- Sultan Water DepartmentWA5384770 · CWS · Population served: 8,424
- City of Quincy Water DepartmentWA5370450 · CWS · Population served: 8,415
- Yak Co - Terrace HeightsWA5306029 · CWS · Population served: 8,410
- College Place Water DeptWA5314050 · CWS · Population served: 8,147
- North Beach WaterWA5363000 · CWS · Population served: 8,093
- City of MiltonWA5354950 · CWS · Population served: 8,078
- City of KalamaWA5337550 · CWS · Population served: 8,020
- City of FircrestWA5325150 · CWS · Population served: 7,927
- City of PacificWA5365300 · CWS · Population served: 7,925
- Model Irrigation Dist #18WA5355550 · CWS · Population served: 7,903
- Tanglewilde Thompson Place 600WA5304397 · CWS · Population served: 7,900
- Buckley WaterWA5309000 · CWS · Population served: 7,842
- Stevens Co Pud - SuncrestWA5385202 · CWS · Population served: 7,484
- Peacock HillWA5366637 · CWS · Population served: 7,401
- JBLM McChord FieldWA5352200 · CWS · Population served: 7,290
- Lake Chelan Reclamation DistrictWA5343783 · CWS · Population served: 6,798
- City of ElmaWA5323100 · CWS · Population served: 6,638
- Sallal Water Association IncWA5375560 · CWS · Population served: 6,600
- Union Gap WaterWA5390250 · CWS · Population served: 6,433
- Black Diamond Water DeptWA5307220 · CWS · Population served: 6,407
- City of BlaineWA5307300 · CWS · Population served: 6,319
- Pasadena Park Irr Dist 17WA5366300 · CWS · Population served: 6,269
- Spo Co Water Dist 3 Sys 4WA5393354 · CWS · Population served: 6,233
- City of MontesanoWA5356000 · CWS · Population served: 6,204
- Tulalip Bay Water Dist #1105300003 · CWS · Population served: 5,968
- Snoqualmie Pass Utility DistrictWA5381048 · CWS · Population served: 5,832
- ArtondaleWA5303160 · CWS · Population served: 5,828
- Seven Lakes Water AssociationWA5377660 · CWS · Population served: 5,823
- Cashmere Water DepartmentWA5311700 · CWS · Population served: 5,815
- Benton City WaterWA5305800 · CWS · Population served: 5,626
- Moxee Water DepartmentWA5357300 · CWS · Population served: 5,599
- North Bainbridge Water CoWA5359994 · CWS · Population served: 5,490
- City of Deer ParkWA5318500 · CWS · Population served: 5,435
- King County Water District #54WA5339950 · CWS · Population served: 5,373
- City of MattawaWA5352000 · CWS · Population served: 5,370
- City of Granite FallsWA5329050 · CWS · Population served: 5,349
- Westport Water DepartmentWA5395300 · CWS · Population served: 5,346
- Water District 19WA5338900 · CWS · Population served: 5,335
- Wapato WaterworksWA5392800 · CWS · Population served: 5,255
- Point EvansWA5368065 · CWS · Population served: 5,211
- City of ConnellWA5314600 · CWS · Population served: 5,150
- Grays Harbor Co Water Dist 2WA5329250 · CWS · Population served: 5,112
- MinterbrookWA5354740 · CWS · Population served: 5,083
- City of Medical LakeWA5353400 · CWS · Population served: 4,982
- Colville Water DepartmentWA5314200 · CWS · Population served: 4,945
- City of OmakWA5363750 · CWS · Population served: 4,940
- VinlandWA5391923 · CWS · Population served: 4,801
- Stevenson Water DeptWA5384250 · CWS · Population served: 4,702
- City of WardenWA5392850 · CWS · Population served: 4,674
- Pattison 500WA5366578 · CWS · Population served: 4,643
- Long Beach Water DepartmentWA5348000 · CWS · Population served: 4,628
- Raymond Water DepartmentWA5371500 · CWS · Population served: 4,620
- Belfair Water District 1WA5305350 · CWS · Population served: 4,432