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