Washington utilities 101 to 200.

Each serves 4,432 to 16,954 people, as it reports to EPA. Your ZIP code finds yours faster.

Find a Washington utility, city or county

101 to 200 of 261, by people served

Washington utilities, 101 to 200 of 261, by people served
Utility	Based in	Serves	Regulated PFAS	Health-based violations since 2016
City of Cheney	Cheney	16,954	None found	0
Naval Base Kitsap at Bangor	Silverdale	16,828	None found	0
Naval Air Station/Whidbey Island	NAS Whidbey Island	16,595	None found	0
Gig Harbor Water Dept	Gig Harbor	16,510	None found	0
North Peninsula	Poulsbo	16,449	None found	0
City of Sumner	Sumner	16,438	None found	0
City of Snohomish	Snohomish	16,367	None found	0
Chelan Co PUD 1	Wenatchee	16,190	None found	0
Coal Creek Utility District	Newcastle	15,989	None found	0
City of Kelso	Kelso	15,775	None found	0
Port Orchard Water Dept	Port Orchard	15,355	None found	0
Fruitland Mutual Water Company	Puyallup	15,313	PFOA, PFBS	0
City of Shelton	Shelton	15,089	None found	0
Quimper	Port Townsend	14,548	PFBS	0
Liberty Lake Sewer & Water District	Liberty Lake	14,500	PFBS	0
City of Sequim	Sequim	14,293	PFBS	0
City of Bainbridge Island	Bainbridge Island	13,491	None found	0
City of Dupont Water System	Dupont	13,141	None found	0
City of Prosser	Prosser	12,070	None found	0
Skyway Water & Sewer	Seattle	12,036	None found	0
Beacon Hill Water & Sewer District	Kelso	11,969	None found	0
Naval Base Kitsap at Bremerton	Silverdale	11,792	None found	1
Chehalis Water Department	Chehalis	11,718	None found	0
Hoquiam Water Department	Hoquiam	11,456	None found	0
City of Duvall	Duvall	11,050	None found	0
City of Leavenworth	Leavenworth	11,041	Not sampled	0
City of Grandview	Grandview	11,010	None found	1
City of Woodland	Woodland	10,640	None found	0
Manchester Water District	Manchester	10,475	None found	0
City of Orting	Orting	10,332	None found	0
Lwwsd - South Shore Water System	Bellingham	10,028	None found	0
NE Sammamish Sewer & Water District	Sammamish	9,702	None found	0
Mountain View - Edgewood Water Co	Edgewood	9,680	PFBS	0
Fairchild Air Force Base	Fairchild AFB	9,544	PFOS, PFHxS, PFBS	0
City of Airway Heights	Airway	9,489	PFHxS	0
Consolidated Irrig Dist 19 System 1	Greenacres	9,434	None found	0
City of Chelan Water Dept	Chelan	9,425	None found	0
Ocean Shores Water Dept	Hoquiam	9,347	None found	0
City of Selah	Selah	9,331	None found	1
Birch Bay Water & Sewer District	Birch Bay	9,046	None found	0
Toppenish Water Department	Toppenish	8,950	None found	0
Port Angeles Composite	Carlsborg	8,872	None found	0
Othello Water Department	Othello	8,755	None found	0
Union Hill Water Association Inc	Redmond	8,720	None found	0
Ephrata Water Department	Ephrata	8,718	None found	0
City of North Bend	North Bend	8,710	None found	0
Town of Steilacoom	Steilacoom	8,545	None found	0
Sultan Water Department	Sultan	8,424	None found	0
City of Quincy Water Department	Quincy	8,415	None found	0
Yak Co - Terrace Heights	Yakima	8,410	None found	1
College Place Water Dept	College Place	8,147	None found	0
North Beach Water	Ocean Park	8,093	None found	0
City of Milton	Milton	8,078	PFBS	0
City of Kalama	Kalama	8,020	None found	0
City of Fircrest	Fircrest	7,927	PFBS	0
City of Pacific	Othello	7,925	PFBS	0
Model Irrigation Dist #18	Spokane	7,903	PFOA, PFOS, PFBS	0
Tanglewilde Thompson Place 600	Lacey	7,900	None found	0
Buckley Water	Buckley	7,842	None found	0
Stevens Co PUD - Suncrest	Loon Lake	7,484	None found	0
Peacock Hill	Tacoma	7,401	PFHxS, PFBS	0
Jblm McChord Field	Joint Base Lewis - McChord	7,290	PFOS, PFHxS	0
Lake Chelan Reclamation District	Manson	6,798	None found	0
City of Elma	Elma	6,638	None found	0
Sallal Water Association Inc	North Bend	6,600	None found	0
Union Gap Water	Union Gap	6,433	None found	0
Black Diamond Water Dept	Black Diamond	6,407	Not sampled	0
City of Blaine	Blaine	6,319	None found	0
Pasadena Park Irr Dist 17	Spokane	6,269	None found	0
Spo Co Water Dist 3 Sys 4	Spokane	6,233	None found	0
City of Montesano	Montesano	6,204	None found	0
Tulalip Bay Water Dist #1	Marysville	5,968	None found	0
Snoqualmie Pass Utility District	Snoqualmie Pass	5,832	None found	0
Artondale	Tacoma	5,828	PFOA, PFOS, PFHxS, PFBS	0
Seven Lakes Water Association	Stanwood	5,823	None found	0
Cashmere Water Department	Cashmere	5,815	Not sampled	0
Benton City Water	Benton City	5,626	PFOS, PFHxS, PFBS	0
Moxee Water Department	Moxee	5,599	None found	0
North Bainbridge Water Co	Poulsbo	5,490	None found	0
City of Deer Park	Deer Park	5,435	PFOS, PFNA, PFBS	0
King County Water District #54	Kent	5,373	None found	1
City of Mattawa	Mattawa	5,370	None found	1
City of Granite Falls	Granite Falls	5,349	None found	0
Westport Water Department	Westport	5,346	None found	4
Water District 19	Vashon	5,335	None found	2
Wapato Waterworks	Wapato	5,255	None found	0
Point Evans	Tacoma	5,211	None found	0
City of Connell	Connell	5,150	None found	0
Grays Harbor Co Water Dist 2	Montesano	5,112	None found	0
Minterbrook	Tacoma	5,083	PFBS	0
City of Medical Lake	Medical Lake	4,982	PFOS, PFHxS	0
Colville Water Department	Colville	4,945	None found	0
City of Omak	Omak	4,940	None found	0
Vinland	Poulsbo	4,801	None found	0
Stevenson Water Dept	Stevenson	4,702	Not sampled	0
City of Warden	Warden	4,674	None found	1
Pattison 500	Lacey	4,643	None found	0
Long Beach Water Department	Long Beach	4,628	None found	4
Raymond Water Department	Raymond	4,620	None found	0
Belfair Water District 1	Belfair	4,432	Not sampled	0

Utilities EPA sampled under UCMR 5, plus any other community system serving 3,300 people or more. Smaller systems appear in ZIP code results. People served is what each utility reports to EPA. Data: EPA SDWIS 2026 Q2 and UCMR 5.