Ohio utilities 101 to 200.

Each serves 7,101 to 17,466 people, as it reports to EPA. Your ZIP code finds yours faster.

Find a Ohio utility, city or county

101 to 200 of 338, by people served

Ohio utilities, 101 to 200 of 338, by people served
Utility	Based in	Serves	Regulated PFAS	Health-based violations since 2016
Norwalk City PWS	Norwalk	17,466	None found	0
New Philadelphia City PWS	New Philadelphia	17,410	None found	0
Erie Co Perkins District	Huron	17,241	None found	0
City of Steubenville	Steubenville	17,000	None found	4
Mount Vernon City PWS	Mount Vernon	16,990	None found	0
Salem City	Salem	16,850	None found	0
Wright - Patterson AFB Area A PWS		16,551	PFOS, PFHxS, PFBS	0
Defiance City	Defiance	16,494	None found	22
Tuppers Plains/Chester Water District	Long Bottom	16,087	None found	0
Ravenna City PWS	Ravenna	16,000	None found	0
Jackson Co. Water Company - WTP		15,984	None found	0
Aurora City - Cleveland PWS	Aurora	15,852	None found	0
Monroe City PWS	Monroe	15,600	None found	0
Pike Water, Inc. - Plant PWS	Waverly	15,487	None found	0
Fairfield County Utilities PWS	Lancaster	15,486	None found	0
Streetsboro City PWS	Streetsboro	15,105	None found	0
Indian Hill City PWS	Cincinnati	15,000	PFOS, PFBS	0
Ashtabula County Water System	Jefferson	14,757	None found	1
Maumee City	Maumee	14,286	None found	0
Bexley City PWS	Bexley	14,250	PFOA, PFBS	0
Girard City	Girard	14,122	PFOS, PFHxS, PFBS	0
Washington Court House PWS	Williamsport	14,100	None found	0
Jefferson Co W and S District - M	Steubenville	13,983	PFBS	0
Circleville City PWS	Circleville	13,927	None found	0
Scioto Co. Regional Water District #1	Lucasville	13,820	None found	0
Coshocton PWS	Coshocton	13,537	None found	0
Englewood City PWS	Englewood	13,463	None found	0
Fostoria City	Fostoria	13,441	None found	0
Dover City PWS	Dover	13,253	None found	0
Bellefontaine City PWS	Bellefontaine	13,249	PFBS	1
Greenville City PWS	Greenville	13,227	PFOS, PFHxS	1
Warren Co. Socialville PWS		13,216	None found	0
Bedford City PWS	Bedford	13,149	None found	0
Trenton City PWS	Trenton	13,012	PFHxS, PFBS	0
Loveland City PWS	Loveland	12,800	PFOS, PFBS	0
East Liverpool City	East Liverpool	12,586	PFBS	0
Bucyrus City	Bucyrus	12,570	None found	3
Conneaut	Conneaut	12,538	None found	1
Wilmington City PWS	Wilmington	12,401	PFOS, PFHxS	0
Amherst City PWS	Amherst	11,797	None found	0
Franklin Public Water System	Franklin	11,690	PFOS	0
City of Celina	Celina	11,682	None found	0
Harrison City PWS	Harrison	11,600	None found	0
Urbana City PWS	Urbana	11,428	None found	1
Jefferson Water and Sewer District PWS	Blacklick	11,294	None found	0
Ironton	Ironton	11,129	PFOA, HFPO-DA, PFBS	1
Northwest Regional Water District	McDermott	11,059	None found	0
Wright - Patterson AFB Area B PWS		11,034	PFOA, PFOS, PFHxS, PFBS	0
Wapakoneta City PWS	Wapakoneta	11,000	None found	0
Van Wert City	Van Wert	10,846	None found	7
Vermilion City	Vermilion	10,594	None found	0
City of Cambridge	Cambridge	10,520	PFOA	3
Galion City	Galion	10,453	None found	5
City of Heath PWS	Heath	10,310	None found	0
Buckeye Water District - Ohio River	Wellsville	10,300	None found	1
Mid - Ohio WSD - Chrisman Avenue WTP	Columbus	10,256	None found	1
Earnhart Hill Water District PWS	Circleville	10,057	None found	0
Trumbull Co. - Southeast PWS	Vienna	9,931	PFOA, PFOS, PFHxS	0
Pataskala City	Pataskala	9,900	None found	0
Little Hocking Water Association, Inc.	Little Hocking	9,892	None found	0
Wyoming City PWS	Cincinnati	9,700	None found	0
City of Jackson	Jackson	9,691	None found	1
Northwestern W and SD - Oregon Wtln 200	Bowling Green	9,629	None found	0
Oakwood City PWS	Oakwood	9,572	PFHxS, PFBS	0
Reading City PWS	Reading	9,506	None found	0
Bellbrook Water Works	Bellbrook	9,475	PFOS, PFHxS, PFBS	1
Shelby City	Shelby	9,453	None found	0
St Marys City	St Marys	9,356	None found	1
Canal Winchester City PWS	Canal Winchester	9,286	None found	0
Twin City Water and Sewer District PWS	Dennison	9,224	None found	0
Louisville City PWS	Louisville	9,186	None found	0
Sheffield Lake City PWS	Sheffield Lake	9,108	None found	0
Chillicothe Correctional Institution	Oak Hill	9,000	None found	1
Trotwood City PWS	Trotwood	9,000	PFBS	0
Wright State University	Dayton	8,948	None found	0
Guernsey Co. Water Dept.	Cambridge	8,891	PFOA	4
Clark County Northridge PWS		8,874	None found	0
Scioto Water Inc. - Rose Hill	Franklin Furnace	8,861	None found	0
Napoleon City	Napoleon	8,858	PFBS	0
Bryan City PWS	Bryan	8,729	None found	0
Portage County Water Resources	Ravenna	8,606	None found	3
Oberlin Water Department	Lagrange	8,600	PFBS	2
Sanitary District #4	Columbus	8,575	PFOA, PFBS	1
Hubbard City PWS	Hubbard	8,518	None found	1
Orrville City PWS	Navarre	8,452	None found	0
Eaton Public Water System	W. Alexandria	8,400	None found	0
Hudson City PWS	Hudson	8,385	None found	1
West Carrollton City PWS	Camden	8,361	None found	1
Kenton City	Kenton	8,360	None found	1
Trumbull Co. - Bazetta/Champion	Vienna	8,270	None found	0
Bellevue City	Bellevue	8,236	None found	3
Aqua Ohio - Lawrence County	Westerville	8,130	PFOA	1
Knox County Water and Wastewater PWS	Mount Vernon	7,710	None found	0
Canfield City PWS	Canfield	7,706	PFOA, PFOS, PFHxS	0
Rattlesnake PWS	Washington Court House	7,685	None found	0
Wauseon City PWS	Wauseon,	7,568	PFNA, PFBS	8
Warren Comm W and S Assn 2	Marietta	7,215	PFOA, PFBS	0
Gallipolis PWS	Gallipolis	7,134	PFOA	0
Cortland City PWS	Cortland	7,105	None found	1
Delphos City	Delphos	7,101	None found	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.

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Ohio utilities 101 to 200.

101 to 200 of 338, by people served

Where to go next

Read your utility’s own report

Every contaminant

Filters, checked