STATE / TERRITORY LEDGER
Washington drinking water system records
EPA’s September 2026 export lists 276 active community water systems in Washington, with 12 current-violation flags and 1 serious-violator flags among covered systems serving at least 2,500 people.
Source: EPA SDWIS system-search export · Active community systems · Snapshot 13 Sep 2026
Systems276active CWS · pop. 2,500+
Population served8,991,233reported total; may overlap
Current violation flag4.3%12 systems
Serious-violator flag0.4%1 systems
01 / LARGEST SYSTEMS
Washington community water systems
EPA’s covered Washington records include 276 active community systems reporting a combined population-served total of 8,991,233, which may overlap.
Population served is a system-reported service figure. It is not a count of unique state residents.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Seattle Public UtilitiesWA5377050 | 1,161,961 | Surface water | No current violation flagged |
| Tacoma Water Division City OfWA5386800 | 446,170 | Surface water | No current violation flagged |
| Vancouver City OfWA5391200 | 373,047 | Ground water | No current violation flagged |
| Spokane City OfWA5383100 | 346,138 | Ground water | No current violation flagged |
| Bellevue City OfWA5305575 | 321,349 | Surface water purchased | No current violation flagged |
| Alderwood Water DistrictWA5301300 | 245,715 | Surface water purchased | No current violation flagged |
| Everett Public Works Dept. City OfWA5324050 | 215,774 | Surface water | No current violation flagged |
| Kent Water DepartmentWA5338150 | 166,421 | Surface water purchased | No current violation flagged |
| Redmond Water System City OfWA5371650 | 163,335 | Surface water purchased | No current violation flagged |
| Clark Public UtilitiesWA5313333 | 153,526 | Ground water | No current violation flagged |
| Lakehaven Water And Sewer DistrictWA5341997 | 148,809 | Surface water purchased | No current violation flagged |
| Bellingham-Water Division City OfWA5305600 | 141,127 | Surface water | No current violation flagged |
| Olympia City OfWA5363450 | 126,966 | Ground water | No current violation flagged |
| Kennewick City OfWA5338100 | 118,164 | Surface water | No current violation flagged |
| Pasco Water DepartmentWA5366400 | 115,102 | Surface water | No current violation flagged |
| Yakima Water Division City OfWA5399150 | 112,858 | Surface water | No current violation flagged |
| Skagit County Pud 1 Judy ResWA5379500 | 111,415 | Surface water | No current violation flagged |
| Renton City OfWA5371850 | 108,091 | Ground water | No current violation flagged |
| Auburn City ofWA5303350 | 107,655 | Ground water | No current violation flagged |
| Richland City OfWA5372250 | 106,499 | Surface water | No current violation flagged |
| Lacey Water DepartmentWA5343500 | 105,178 | Ground water | No current violation flagged |
| Highline Water DistrictWA5340650 | 100,170 | Surface water purchased | No current violation flagged |
| Northshore Utility DistrictWA5340800 | 99,789 | Surface water purchased | No current violation flagged |
| Puyallup City OfWA5370050 | 94,520 | Surface water purchased | No current violation flagged |
| Marysville UtilitiesWA5351900 | 88,582 | Surface water purchased | No current violation flagged |
| Lakewood Water DistrictWA5345550 | 82,425 | Ground water | No current violation flagged |
| Sammamish Plateau Water & SewerWA5340900 | 79,362 | Surface water purchased | No current violation flagged |
| Soos Creek Water & Sewer DistrictWA5340100 | 74,172 | Surface water purchased | No current violation flagged |
| Bremerton City OfWA5308200 | 72,951 | Surface water | No current violation flagged |
| Kirkland City OfWA5342250 | 69,243 | Surface water purchased | No current violation flagged |
| Lynnwood City OfWA5349270 | 68,204 | Surface water purchased | No current violation flagged |
| Sno Pud 1 - Lake StevensWA5380907 | 67,710 | Surface water purchased | No current violation flagged |
| Woodinville Water DistrictWA5341600 | 66,699 | Surface water purchased | No current violation flagged |
| Silver Lake Water & Sewer DistrictWA5379250 | 65,033 | Surface water purchased | No current violation flagged |
| SouthwoodWA5382844 | 64,155 | Surface water purchased | No current violation flagged |
| Longview Water DepartmentWA5348100 | 57,617 | Ground water | No current violation flagged |
| Covington Water DistrictWA5341650 | 56,172 | Surface water purchased | No current violation flagged |
| Tumwater City OfWA5389700 | 51,802 | Ground water | No current violation flagged |
| King County Water District #20WA5338950 | 48,469 | Surface water purchased | No current violation flagged |
| Wenatchee City OfWA5394350 | 43,690 | Ground water | No current violation flagged |
| Issaquah Water SystemWA5336350 | 43,584 | Surface water purchased | No current violation flagged |
| Bonney Lake Water Department CityWA5307650 | 43,371 | Surface water purchased | No current violation flagged |
| Walla Walla Water DivisionWA5392500 | 42,959 | Surface water | No current violation flagged |
| Nob Hill Water AssociationWA5359700 | 38,050 | Ground water | No current violation flagged |
| Tukwila Water DepartmentWA5389500 | 36,298 | Surface water purchased | No current violation flagged |
| Firgrove Mutual IncWA5325200 | 36,168 | Surface water purchased | No current violation flagged |
| JBLM LewisWA5326050 | 35,414 | Ground water | No current violation flagged |
| Silverdale Water Dist 16WA5379300 | 35,163 | Ground water | No current violation flagged |
| Spanaway Water CompanyWA5382850 | 34,506 | Ground water | No current violation flagged |
| Edmonds City OfWA5322500 | 34,065 | Surface water purchased | No current violation flagged |
| Parkland Light & Water CompanyWA5366200 | 33,775 | Ground water | No current violation flagged |
| Bothell Water City OfWA5307900 | 33,643 | Surface water purchased | No current violation flagged |
| North City Water DistrictWA5339600 | 32,847 | Surface water purchased | No current violation flagged |
| Moses Lake City OfWA5356300 | 32,428 | Ground water | No current violation flagged |
| Camas Municipal Water Sewer SystemWA5310800 | 31,794 | Ground water | Other current violation flag |
| Mukilteo Water & Wastewater DistrWA5357550 | 31,437 | Surface water purchased | No current violation flagged |
| Pullman Water Department City OfWA5369880 | 31,315 | Ground water | No current violation flagged |
| Mercer Island City OfWA5353640 | 31,057 | Surface water purchased | No current violation flagged |
| Battle Ground Water Dept City OfWA5304700 | 30,237 | Ground water | No current violation flagged |
| Arlington City OfWA5302950 | 29,508 | Surface water purchased | No current violation flagged |
| Fife Dept Of Public WorksWA5325050 | 29,091 | Surface water purchased | No current violation flagged |
| West Sound Utility District #1WA5302600 | 28,930 | Ground water | No current violation flagged |
| Cedar River Water & Sewer DistrictWA5341800 | 28,671 | Surface water purchased | No current violation flagged |
| Centralia Public Works - WaterWA5312200 | 28,164 | Ground water | No current violation flagged |
| Port Angeles City OfWA5368550 | 28,067 | Surface water | No current violation flagged |
| Whitworth Water District 2WA5396601 | 26,883 | Ground water | No current violation flagged |
| East Wenatchee Water DistrictWA5321800 | 26,519 | Ground water purchased | No current violation flagged |
| Mountlake Terrace City OfWA5357250 | 26,402 | Surface water purchased | No current violation flagged |
| Anacortes City OfWA5302200 | 25,109 | Surface water | No current violation flagged |
| Cross Valley Water DistrictWA5316270 | 24,695 | Surface water purchased | No current violation flagged |
| Vera Water & PowerWA5391450 | 24,692 | Ground water | Current monitoring/reporting flag |
| North Perry Ave Water DistrictWA5360950 | 24,402 | Ground water | No current violation flagged |
| Lake Meridian Water DistrictWA5341900 | 24,231 | Surface water purchased | No current violation flagged |
| Oak Harbor City OfWA5362650 | 23,675 | Surface water purchased | No current violation flagged |
| King County Water District #49WA5339800 | 23,492 | Surface water purchased | No current violation flagged |
| Monroe Water SystemWA5355820 | 23,467 | Surface water purchased | No current violation flagged |
| Enumclaw Water DepartmentWA5323600 | 23,276 | Ground water | No current violation flagged |
| Aberdeen City OfWA5300050 | 22,867 | Surface water | No current violation flagged |
| Pud #1 Of Asotin CountyWA5393343 | 21,930 | Ground water | No current violation flagged |
| King County Water District #125WA5341998 | 21,904 | Surface water purchased | No current violation flagged |
| Washington State UniversityWA5393200 | 21,506 | Ground water | No current violation flagged |
| Washougal City OfWA5393400 | 21,441 | Ground water | No current violation flagged |
| West Richland City OfWA5394900 | 21,231 | Surface water purchased | No current violation flagged |
| Ridgefield Public WorksWA5372400 | 21,225 | Ground water | No current violation flagged |
| Consolidated Irrig Dist 19 System 2WA5310221 | 21,220 | Ground water | No current violation flagged |
| Ellensburg Water DeptWA5322950 | 20,900 | Ground water | No current violation flagged |
| Snoqualmie WaterWA5381080 | 20,222 | Ground water | No current violation flagged |
| King County Water District No 90WA5341150 | 20,100 | Surface water purchased | No current violation flagged |
| Lynden Water DepartmentWA5349150 | 20,062 | Surface water | No current violation flagged |
| FerndaleWA5324850 | 19,305 | Ground water | No current violation flagged |
| Summit Water & Supply CoWA5385050 | 19,125 | Ground water | No current violation flagged |
| Spo Co Water Dist 3 Sys 1WA5393351 | 19,035 | Ground water | No current violation flagged |
| Modern Electric Water CoWA5355600 | 18,487 | Ground water | No current violation flagged |
| Poulsbo City OfWA5369150 | 18,400 | Ground water | Other current violation flag |
| Olympic View Water & Sewer DistrictWA5363600 | 17,784 | Surface water | No current violation flagged |
| Stanwood Water Dept City OfWA5383650 | 17,586 | Ground water | No current violation flagged |
| Yelm City OfWA5399350 | 17,355 | Ground water | No current violation flagged |
| Sunnyside City OfWA5385400 | 17,194 | Ground water | Current monitoring/reporting flag |
| Eastern Washington UniversityWA5321900 | 17,108 | Ground water | No current violation flagged |
| Port Townsend City OfWA5369000 | 17,053 | Surface water | No current violation flagged |
| Cheney City OfWA5312400 | 16,954 | Ground water | No current violation flagged |
| Naval Base Kitsap At BangorWA5302714 | 16,828 | Ground water | No current violation flagged |
| Naval Air Station/Whidbey IslandWA5303420 | 16,595 | Surface water purchased | No current violation flagged |
| Gig Harbor Water DeptWA5327600 | 16,510 | Ground water | No current violation flagged |
| North PeninsulaWA5305122 | 16,449 | Ground water | No current violation flagged |
| Sumner City OfWA5385120 | 16,438 | Ground water | No current violation flagged |
| Snohomish City OfWA5380915 | 16,367 | Surface water purchased | No current violation flagged |
| Chelan Co Pud 1WA5312284 | 16,190 | Ground water purchased | No current violation flagged |
| Coal Creek Utility DistrictWA5341750 | 15,989 | Surface water purchased | No current violation flagged |
| Kelso City OfWA5338000 | 15,775 | Groundwater under influence of surface water | No current violation flagged |
| Port Orchard Water DeptWA5368900 | 15,355 | Ground water | No current violation flagged |
| Fruitland Mutual Water CompanyWA5326800 | 15,313 | Ground water | No current violation flagged |
| Shelton City OfWA5378170 | 15,089 | Ground water | No current violation flagged |
| QuimperWA5305783 | 14,548 | Ground water | Current monitoring/reporting flag |
| Liberty Lake Sewer & Water DistrictWA5347150 | 14,500 | Ground water | No current violation flagged |
| Sequim City OfWA5377620 | 14,293 | Ground water | No current violation flagged |
| Bainbridge Island City OfWA5397650 | 13,491 | Ground water | No current violation flagged |
| Dupont Water System City OfWA5320500 | 13,141 | Ground water | Current monitoring/reporting flag |
| Prosser City OfWA5369750 | 12,070 | Ground water | No current violation flagged |
| Skyway Water & SewerWA5338800 | 12,036 | Surface water purchased | No current violation flagged |
| Beacon Hill Water & Sewer DistrictWA5315650 | 11,969 | Ground water purchased | No current violation flagged |
| Naval Base Kitsap At BremertonWA5303468 | 11,792 | Surface water purchased | No current violation flagged |
| Chehalis Water DepartmentWA5312250 | 11,718 | Surface water | No current violation flagged |
| Hoquiam Water DepartmentWA5334350 | 11,456 | Surface water | No current violation flagged |
| Duvall City OfWA5320750 | 11,050 | Surface water purchased | No current violation flagged |
| Leavenworth City OfWA5346500 | 11,041 | Surface water | No current violation flagged |
| Grandview City OfWA5328970 | 11,010 | Ground water | No current violation flagged |
| Woodland City OfWA5398200 | 10,640 | Groundwater under influence of surface water | No current violation flagged |
| Manchester Water DistrictWA5350700 | 10,475 | Ground water | No current violation flagged |
| Orting City OfWA5364500 | 10,332 | Ground water | No current violation flagged |
| Lwwsd - South Shore Water SystemWA5395910 | 10,028 | Surface water | No current violation flagged |
| Ne Sammamish Sewer & Water DistrictWA5375265 | 9,702 | Ground water | No current violation flagged |
| Mountain View-Edgewood Water CoWA5356820 | 9,680 | Ground water | No current violation flagged |
| Fairchild Air Force BaseWA5324350 | 9,544 | Ground water | No current violation flagged |
| Airway Heights City OfWA5300650 | 9,489 | Ground water | No current violation flagged |
| Consolidated Irrig Dist 19 System 1WA5310220 | 9,434 | Ground water | No current violation flagged |
| Chelan Water Dept City OfWA5312300 | 9,425 | Surface water | No current violation flagged |
| Ocean Shores Water DeptWA5363008 | 9,347 | Ground water | No current violation flagged |
| Selah City OfWA5377400 | 9,331 | Ground water | No current violation flagged |
| Birch Bay Water & Sewer DistrictWA5395904 | 9,046 | Ground water purchased | No current violation flagged |
| Toppenish Water DepartmentWA5388850 | 8,950 | Ground water | No current violation flagged |
| Port Angeles CompositeWA5343296 | 8,872 | Surface water | No current violation flagged |
| Othello Water DepartmentWA5364850 | 8,755 | Ground water | No current violation flagged |
| Union Hill Water Association IncWA5390260 | 8,720 | Ground water | No current violation flagged |
| Ephrata Water DepartmentWA5323650 | 8,718 | Ground water | No current violation flagged |
| North Bend City OfWA5360100 | 8,710 | Ground water | No current violation flagged |
| Steilacoom Town OfWA5384000 | 8,545 | Ground water | No current violation flagged |
| Sultan Water DepartmentWA5384770 | 8,424 | Surface water | No current violation flagged |
| Quincy Water Department City OfWA5370450 | 8,415 | Ground water | No current violation flagged |
| Yak Co - Terrace HeightsWA5306029 | 8,410 | Ground water | No current violation flagged |
| College Place Water DeptWA5314050 | 8,147 | Ground water | No current violation flagged |
| North Beach WaterWA5363000 | 8,093 | Ground water | No current violation flagged |
| Milton City OfWA5354950 | 8,078 | Ground water | No current violation flagged |
| Kalama City OfWA5337550 | 8,020 | Groundwater under influence of surface water | No current violation flagged |
| Fircrest City OfWA5325150 | 7,927 | Ground water | No current violation flagged |
| Pacific City OfWA5365300 | 7,925 | Ground water | No current violation flagged |
| Model Irrigation Dist #18WA5355550 | 7,903 | Ground water | No current violation flagged |
| Tanglewilde Thompson Place 600WA5304397 | 7,900 | Ground water | No current violation flagged |
| Buckley WaterWA5309000 | 7,842 | Surface water purchased | No current violation flagged |
| Stevens Co Pud - SuncrestWA5385202 | 7,484 | Ground water | No current violation flagged |
| Peacock HillWA5366637 | 7,401 | Ground water | No current violation flagged |
| JBLM McChord FieldWA5352200 | 7,290 | Ground water | No current violation flagged |
| Lake Chelan Reclamation DistrictWA5343783 | 6,798 | Surface water | No current violation flagged |
| Elma City OfWA5323100 | 6,638 | Ground water | No current violation flagged |
| Sallal Water Association IncWA5375560 | 6,600 | Ground water | No current violation flagged |
| Union Gap WaterWA5390250 | 6,433 | Ground water | No current violation flagged |
| Black Diamond Water DeptWA5307220 | 6,407 | Ground water | No current violation flagged |
| Blaine City OfWA5307300 | 6,319 | Ground water | No current violation flagged |
| Pasadena Park Irr Dist 17WA5366300 | 6,269 | Ground water | No current violation flagged |
| Spo Co Water Dist 3 Sys 4WA5393354 | 6,233 | Ground water | No current violation flagged |
| Montesano City OfWA5356000 | 6,204 | Ground water | No current violation flagged |
| Tulalip Bay Water Dist #1105300003 | 5,968 | Surface water purchased | No current violation flagged |
| Snoqualmie Pass Utility DistrictWA5381048 | 5,832 | Ground water | Current monitoring/reporting flag |
| ArtondaleWA5303160 | 5,828 | Ground water | No current violation flagged |
| Seven Lakes Water AssociationWA5377660 | 5,823 | Ground water | No current violation flagged |
| Cashmere Water DepartmentWA5311700 | 5,815 | Surface water | No current violation flagged |
| Benton City WaterWA5305800 | 5,626 | Ground water | No current violation flagged |
| Moxee Water DepartmentWA5357300 | 5,599 | Ground water | No current violation flagged |
| North Bainbridge Water CoWA5359994 | 5,490 | Ground water | No current violation flagged |
| Deer Park City OfWA5318500 | 5,435 | Ground water | No current violation flagged |
| King County Water District #54WA5339950 | 5,373 | Surface water purchased | No current violation flagged |
| Mattawa City ofWA5352000 | 5,370 | Ground water | No current violation flagged |
| Granite Falls City OfWA5329050 | 5,349 | Surface water purchased | No current violation flagged |
| Westport Water DepartmentWA5395300 | 5,346 | Ground water | No current violation flagged |
| Water District 19WA5338900 | 5,335 | Surface water | No current violation flagged |
| Wapato WaterworksWA5392800 | 5,255 | Ground water | No current violation flagged |
| Point EvansWA5368065 | 5,211 | Ground water | Current monitoring/reporting flag |
| Connell City OfWA5314600 | 5,150 | Ground water | Current monitoring/reporting flag |
| Grays Harbor Co Water Dist 2WA5329250 | 5,112 | Ground water | No current violation flagged |
| MinterbrookWA5354740 | 5,083 | Ground water | No current violation flagged |
| Medical Lake City OfWA5353400 | 4,982 | Ground water | No current violation flagged |
| Colville Water DepartmentWA5314200 | 4,945 | Ground water | No current violation flagged |
| Omak City OfWA5363750 | 4,940 | Ground water | No current violation flagged |
| VinlandWA5391923 | 4,801 | Ground water | No current violation flagged |
| Stevenson Water DeptWA5384250 | 4,702 | Surface water | No current violation flagged |
| Warden City OfWA5392850 | 4,674 | Ground water | No current violation flagged |
| Pattison 500WA5366578 | 4,643 | Ground water | No current violation flagged |
| Long Beach Water DepartmentWA5348000 | 4,628 | Surface water | No current violation flagged |
| Raymond Water DepartmentWA5371500 | 4,620 | Surface water | No current violation flagged |
| Belfair Water District 1WA5305350 | 4,432 | Ground water | No current violation flagged |
| South BainbridgeWA5381451 | 4,414 | Ground water | No current violation flagged |
| Castle Rock Municipal WaterWA5311800 | 4,367 | Surface water | No current violation flagged |
| Orchard Avenue Irrigation Dist 6WA5364000 | 4,330 | Ground water | No current violation flagged |
| Goldendale City OfWA5328450 | 4,314 | Ground water | No current violation flagged |
| East Spokane Water Dist 1WA5321650 | 4,285 | Ground water | No current violation flagged |
| Trentwood Irrigation District 3WA5389250 | 4,228 | Ground water | No current violation flagged |
| SuquamishWA5386400 | 4,203 | Ground water | No current violation flagged |
| Crystal Mountain IncWA5316400 | 4,154 | Surface water | No current violation flagged |
| Irvin Water District #6WA5336050 | 4,150 | Ground water | No current violation flagged |
| Coupeville Town OfWA5315550 | 4,142 | Ground water | No current violation flagged |
| White Salmon City OfWA5396350 | 4,077 | Surface water | No current violation flagged |
| Granger Water DepartmentWA5329000 | 3,993 | Ground water | No current violation flagged |
| Eatonville Water DeptWA5322300 | 3,945 | Surface water | No current violation flagged |
| Everson City OfWA5324200 | 3,893 | Ground water | No current violation flagged |
| Brewster City OfWA5308300 | 3,843 | Ground water | No current violation flagged |
| Okanogan Water Department City OfWA5363200 | 3,817 | Ground water | No current violation flagged |
| King County Water District 119WA5341985 | 3,800 | Surface water purchased | No current violation flagged |
| Spo Co Water Dist 3 Sys 3WA5393353 | 3,768 | Ground water | No current violation flagged |
| Grand MoundWA5307158 | 3,764 | Ground water | No current violation flagged |
| Parkview TerraceWA5366215 | 3,730 | Ground water | No current violation flagged |
| Eastsound Water Users AssociationWA5322170 | 3,711 | Surface water | No current violation flagged |
| Lummi Tribal Water District105300002 | 3,699 | Surface water purchased | Current serious-violator flag |
| Lake Cushman System 5WA5303529 | 3,675 | Ground water | No current violation flagged |
| Friday Harbor Town OfWA5326595 | 3,543 | Surface water | No current violation flagged |
| Roosevelt Water AssociationWA5374150 | 3,530 | Surface water purchased | No current violation flagged |
| Zillah City OfWA5399800 | 3,518 | Ground water | No current violation flagged |
| Naches Town OfWA5358100 | 3,512 | Ground water | Current monitoring/reporting flag |
| Colfax Water Department City OfWA5314000 | 3,507 | Ground water | No current violation flagged |
| Winlock City OfWA5397500 | 3,502 | Ground water | No current violation flagged |
| Forks Municipal Water DeptWA5326000 | 3,468 | Ground water | No current violation flagged |
| Horizons WestWA5334375 | 3,454 | Ground water | No current violation flagged |
| Royal City WaterWA5374700 | 3,389 | Ground water | No current violation flagged |
| Dayton Water DepartmentWA5318250 | 3,374 | Ground water | No current violation flagged |
| Tenino City ofWA5387400 | 3,336 | Ground water | No current violation flagged |
| Newport City OfWA5359350 | 3,331 | Ground water | No current violation flagged |
| Algona Water DeptWA5301450 | 3,300 | Surface water purchased | No current violation flagged |
| Oroville City OfWA5364400 | 3,256 | Ground water | No current violation flagged |
| Fox Island Mutual Water AssocWA5326300 | 3,255 | Ground water | No current violation flagged |
| Muckleshoot105300013 | 3,250 | Ground water | No current violation flagged |
| Rock Island Water Dept City ofWA5373401 | 3,226 | Ground water | No current violation flagged |
| Ames Lake Water Assoc IncWA5302055 | 3,224 | Ground water | No current violation flagged |
| Toutle Community Regional WaterWA5388905 | 3,215 | Surface water purchased | No current violation flagged |
| Nisqually-Leschi & West Nisqually105300014 | 3,200 | Ground water | No current violation flagged |
| StrohsWA5384670 | 3,192 | Ground water | No current violation flagged |
| Lake Forest Park Water DistrictWA5340950 | 3,171 | Ground water | No current violation flagged |
| Highland Water DistrictWA5332850 | 3,121 | Surface water purchased | No current violation flagged |
| Meadows 690WA5387784 | 3,100 | Ground water | No current violation flagged |
| Napavine City OfWA5358200 | 3,095 | Ground water | No current violation flagged |
| Olympic Water & Sewer IncWA5368700 | 3,086 | Ground water | No current violation flagged |
| Snake River Housing Water SystemWA5300710 | 3,036 | Ground water | No current violation flagged |
| YacoltWA5399000 | 3,034 | Ground water | No current violation flagged |
| Dry Creek Water AssociationWA5320050 | 3,030 | Ground water | No current violation flagged |
| CarsonWA5311340 | 3,015 | Surface water | No current violation flagged |
| Fall City Water Dist. #127WA5324550 | 2,987 | Ground water | No current violation flagged |
| Sno Pud 1 - Warm BeachWA5393000 | 2,977 | Ground water | No current violation flagged |
| ClearwoodWA5313615 | 2,956 | Ground water | No current violation flagged |
| Cedar CrestWA5311887 | 2,954 | Ground water | No current violation flagged |
| South Bend Water DepartmentWA5381500 | 2,930 | Surface water | No current violation flagged |
| Erland Point Water CoWA5323850 | 2,909 | Ground water | No current violation flagged |
| Stevens Co Pud - Deer LakeWA5393380 | 2,884 | Ground water | No current violation flagged |
| Western State HospitalWA5395150 | 2,857 | Ground water | No current violation flagged |
| Desert Aire Owner AssnWA5319056 | 2,856 | Ground water | No current violation flagged |
| Mccormick WoodsWA5340529 | 2,760 | Surface water purchased | No current violation flagged |
| West Sequim Bay IncWA5354192 | 2,759 | Ground water | No current violation flagged |
| Rainier Water DepartmentWA5370980 | 2,758 | Ground water | Other current violation flag |
| Ilwaco Water Department City OfWA5335500 | 2,757 | Surface water | No current violation flagged |
| Mccleary City OfWA5352250 | 2,753 | Ground water | No current violation flagged |
| Gold Bar City OfWA5328300 | 2,745 | Ground water | No current violation flagged |
| Kettle Falls Water DeptWA5338400 | 2,698 | Ground water | No current violation flagged |
| Surfside HomeownersWA5386470 | 2,687 | Ground water | No current violation flagged |
| Olympic MallWA5363479 | 2,681 | Ground water | No current violation flagged |
| Columbia Valley Water DistrictWA5366110 | 2,648 | Ground water | No current violation flagged |
| Suncadia ResortWA53AA317 | 2,640 | Surface water purchased | No current violation flagged |
| Chewelah Water Dept SouthWA5312750 | 2,615 | Ground water | No current violation flagged |
| Camano Water AssociationWA5310750 | 2,592 | Ground water | No current violation flagged |
| Asotin Water DeptWA5303250 | 2,531 | Ground water | No current violation flagged |
02 / CITY REPORTS
Washington city water-system reports
Washington has 0 city reports meeting the publication threshold for covered systems or reported population served.
No qualifying city reports.
03 / COUNTY REPORTS
Washington county water-system reports
Washington has 32 county reports meeting the publication threshold for covered systems or reported population served.
King44 systemsPierce33 systemsSnohomish22 systemsSpokane22 systemsKitsap19 systemsYakima13 systemsThurston11 systemsGrays Harbor8 systemsWhatcom8 systemsClark7 systemsCowlitz7 systemsGrant7 systemsChelan6 systemsClallam6 systemsPacific6 systemsBenton5 systemsStevens5 systemsIsland4 systemsLewis4 systemsOkanogan4 systemsJefferson3 systemsMason3 systemsWalla Walla3 systemsWhitman3 systemsAsotin2 systemsDouglas2 systemsFranklin2 systemsKittitas2 systemsKlickitat2 systemsSan Juan2 systemsSkagit2 systemsSkamania2 systems