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WA tap water quality, city by city
465 cities and towns in WA are served by an active community water system in the EPA's records. Each page below translates that system's EPA-reported history into plain English.
According to EPA SDWIS data, retrieved June 2026.
- Aberdeen
- Acme
- Adna
- Airway
- Albion
- Algona
- Allyn
- Almira
- Anacortes
- Anderson Island
- Arlington
- Arlington
- Ashford
- Asotin
- Auburn
- Auburn
- Bainbridge Island
- Baring
- Battle Ground
- Battle Ground
- Beaux Arts
- Beaver
- Belfair
- Belfair
- Bellevue
- Bellingham
- Bellingham
- Benton City
- Beverly
- Bingen
- Birch Bay
- Black Diamond
- Black Diamond
- Blain
- Blaine
- Bothell
- Bothell
- Bow
- Bremerton
- Bremerton
- Brewster
- Bridgeport
- Buckley
- Buckley
- Bucoda
- Burbank
- Burien
- Burlington
- Camano Island
- Camano Island
- Camas
- Camas
- Carbonado
- Carlsborg
- Carnation
- Carson
- Carson
- Cashmere
- Castle Rock
- Castle Rock
- Cathlamet
- Cathlamet
- Centralia
- Chattaroy
- Chehalis
- Chehalis
- Chelan
- Chelan
- Cheney
- Chewelah
- Chimacum
- Chinook
- Clarkston
- Cle Elum
- Cle Elum
- Clinton
- Clinton
- Colbert
- Colfax
- College Place
- Colton
- Colville
- Concrete
- Connell
- Connell
- Copalis Beach
- Coulee City
- Coulee Dam
- Coupeville
- Curlew
- Cusick
- Custer
- Dallesport
- Darrington
- Darrington
- Davenport
- Dayton
- Deer Harbor
- Deer Park
- Deming
- Deming
- Des Moines
- Desert Aire
- Dryden
- Dupont
- Duvall
- Duvall
- East Olympia
- East Wenatchee
- East Wentachee
- Eastsound
- Eatonville
- Edgewood
- Edmonds
- Edwall
- Elbe
- Electric City
- Electric City
- Elk
- Ellensburg
- Ellensburg
- Elma
- Elma
- Elmer City
- Eltopia
- Endicott
- Entiat
- Enumclaw
- Ephrata
- Everett
- Everson
- Fairchild Afb
- Fall City
- Falls City
- Farmington
- Federal Way
- Ferndale
- Ferndale
- Fife
- Fircrest
- Forks
- Forks
- Four Lakes
- Fox Island
- Freeland
- Freeland
- Friday Harbor
- Friday Harbor
- George
- Gig Harbor
- Gig Harbor
- Glacier
- Goldbar
- Goldendale
- Graham
- Graham
- Grand Coulee
- Grand Coulee
- Grandview
- Granger
- Granite Falls
- Grapeview
- Greenacres
- Greenbank
- Greenwater
- Hamilton
- Harrah
- Hoodsport
- Hoquiam
- Hoquiam
- Husum
- Ilwaco
- Index
- Ion
- Ione
- Issaquah
- Issaquah
- Joint Base Lewis-Mcchord
- Joyce
- Kahlotus
- Kalama
- Kelso
- Kelso
- Kenmore
- Kennewick
- Kent
- Kent
- Kettle Falls
- Kingston
- Kirkland
- Kirkland
- Kittitas
- La Center
- La Conner
- La Conner
- La Push
- Lacey
- Lacey
- Laconner
- Lacrosse
- Lake Forest Park
- Lake Stevens
- Lake Stevens
- Lake Tapps
- Lakewood
- Lakewood
- Lamont
- Langley
- Leavenworth
- Liberty Lake
- Lilliwaup
- Lind
- Littlerock
- Long Beach
- Longview
- Longview
- Loon Lake
- Lopez Island
- Lummi Island
- Lynden
- Lynden
- Lynnwood
- Mabton
- Malaga
- Malott
- Manchester
- Manson
- Maple Falls
- Maple Falls
- Maple Valley
- Marblemount
- Marlin
- Marshall
- Marysville
- Marysville
- Mattawa
- Mccleary
- Mccleary
- Mckenna
- Mead
- Medical Lake
- Medical Lake
- Mercer Island
- Mesa
- Metaline
- Methow
- Milton
- Monroe
- Montesano
- Montesano
- Morton
- Morton
- Moses Lake
- Moses Lake
- Mossyrock
- Mount Vernon
- Mountlake Terrace
- Moxee
- Mt Vernon
- Mukilteo
- Naches
- Napavine
- Napavine
- Nas Whidbey Island
- Neah Bay
- Neilton
- Nespelem
- Nespelem
- Newcastle
- Newman Lake
- Newport
- Nooksack
- North Bend
- North Bonneville
- Northport
- Oak Harbor
- Oak Harbor
- Oaksdale
- Oakville
- Ocean Park
- Ocean Park
- Odessa
- Okanogan
- Okanogan
- Olympia
- Olympia
- Omak
- Onalaska
- Orondo
- Oroville
- Orting
- Othello
- Othello
- Oysterville
- Packwood
- Palouse
- Pasco
- Pateros
- Pe Ell
- Point Roberts
- Pomeroy
- Pomeroy
- Port Angeles
- Port Angeles
- Port Ludlow
- Port Ludlow
- Port Orchard
- Port Orchard
- Port Townsend
- Port Townsend
- Poulsbo
- Pouslbo
- Prescott
- Prosser
- Pullman
- Puyallup
- Puyallup
- Quilcene
- Quinault
- Quincy
- Rainier
- Randle
- Ravensdale
- Ravensdale
- Raymond
- Raymond
- Reardan
- Redmond
- Redmond
- Renton
- Renton
- Republic
- Richland
- Richland
- Ridgefield
- Ritzville
- Ritzville
- Riverside
- Rochester
- Rock Island
- Rock Island
- Rockford
- Rockport
- Ronald
- Rosalia
- Roslyn
- Roy
- Royal City
- Salkum
- Sammamish
- Sammamish
- Satsop
- Seabeck
- Seattle
- Seattle
- Sedro Woolley
- Sedro Woolley
- Sekiu
- Selah
- Sequim
- Sequim
- Shelton
- Shelton
- Shoreline
- Silverdale
- Silverdale
- Skokomish Nation
- Skykomish
- Skykomish
- Snohomish
- Snohomish
- Snoqualime
- Snoqualmie
- Snoqualmie Pass
- Soap Lake
- South Bend
- South Cle Elum
- South Prairie
- Spanaway
- Spanaway
- Spangle
- Spangle
- Spokane
- Spokane
- Spokane Valley
- Spokane Valley
- Sprague
- Springdale
- Stanwood
- Stanwood
- Starbuck
- Startup
- Steilacoom
- Stevenson
- Stevenson
- Sultan
- Sumas
- Sumner
- Sunnyside
- Sunnyside
- Suquamish
- Tacoma
- Tacoma
- Taholah
- Tahuya
- Tekoa
- Tenino
- Thorp
- Tokeland
- Toledo
- Tonasket
- Tonasket
- Toppenish
- Toppenish
- Trout Lake
- Tukwila
- Tulalip
- Tumwater
- Twisp
- Union
- Union Gap
- Uniontown
- University Place
- Usk
- Vancouver
- Vancouver
- Vantage
- Vashion Island
- Vashon
- Vashon
- Waitsburg
- Walla Walla
- Walla Walla
- Wapato
- Wapato
- Wapato
- Warden
- Washougal
- Washtucna
- Waterville
- Wauna
- Waverly
- Wellpinit
- Wenatchee
- Wenatchee
- Wentachee
- West Richland
- Westport
- White Salmon
- White Swan
- Wilbur
- Wilkeson
- Willard
- Winlock
- Winlock
- Winthrop
- Woodinville
- Woodinville
- Woodland
- Woodland
- Yacolt
- Yakima
- Yakima
- Yelm
- Zillah