How do I find my water utility in Ohio?

Use our ZIP lookup at /zip or browse the utility list below. Ohio has 609 community water systems in our directory.

What does my Ohio utility's Consumer Confidence Report include?

Annual contaminant data, EPA violations, water source description, and health-effects language — required under 40 CFR 141.151. The 2027 CCR Rule adds direct-URL delivery and per-customer contaminant tables.

Who regulates water utilities in Ohio?

The Ohio state drinking-water program regulates community water systems, with EPA backup under the Safe Drinking Water Act.

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Ohio Water Utilities

Comprehensive directory of 609 water utilities serving 9.1 million people across Ohio. View quality reports, EPA violations, and contact information.

609

Utilities

9.1M

People Served

With Violations

1.3M

Largest Utility

All Water Utilities in Ohio

Need Ohio Contact Data?

Get verified contacts for 609 Ohio water utilities. Names, titles, phone numbers, and emails.

Need contact data for Ohio utilities?

Water operators in Ohio

If you run a water utility in Ohio, you're subject to the EPA CCR Rule (40 CFR 141.151) enforced by the state drinking-water program. The 2027 revised rule adds direct-URL delivery requirements effective January 1, 2027, with the first compliant report due July 1, 2027. See our 2027 CCR Rule summary for requirements that apply to your utility.

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Search Water Quality by City

Get detailed water quality reports for your specific city in Ohio. View contaminants, health effects, and filter recommendations.

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Ohio Water Utilities

All Water Utilities in Ohio

Need Ohio Contact Data?

CLEVELAND PUBLIC WATER SYSTEM

COLUMBUS PUBLIC WATER SYSTEM

TOLEDO CITY OF

AKRON CITY PWS

DEL-CO WATER COMPANY, INC.

MONTGOMERY COUNTY WATER SERVICES 1 PWS

YOUNGSTOWN CITY PWS

DAYTON PUBLIC WATER SYSTEM

CLERMONT PUBLIC WATER SYSTEM

BUTLER CO. WATER DISTRICT 2 PWS

CANTON PUBLIC WATER SYSTEM

AQUA OHIO - MASSILLON PWS

MONTGOMERY COUNTY WATER SERVICES 2 PWS

LAKE COUNTY WEST WATER SUBDISTRICT

AQUA OHIO - MENTOR

RURAL LORAIN CO. WATER A

ELYRIA WATER DEPARTMENT

LAKEVILLE WATER SYSTEM

LIMA CITY

LORAIN CITY PWS

HAMILTON PUBLIC WATER SYSTEM

SPRINGFIELD CITY PWS

AQUA OHIO - STRUTHERS

WARREN CITY PWS

FINDLAY CITY

LAKEWOOD CITY PWS

MANSFIELD CITY

NEWARK CITY PWS

CUYAHOGA FALLS CITY PWS

MIDDLETOWN CITY PWS

MEDINA CO/NORTHWEST PWS

AQUA OHIO - MARION

FAIRFIELD CITY PWS

DELAWARE CITY PWS

HUBER HEIGHTS PUBLIC WATER SYSTEM

SOUTHWEST REGIONAL WATER DISTRICT

LAKE COUNTY EAST WATER SUBDISTRICT

PORTSMOUTH PUBLIC WATER SYSTEM

LANCASTER CITY PWS

WESTERN WATER COMPANY

AQUA OHIO - ASHTABULA

WARREN CO. RICHARD RENNEKER PWS

WESTERVILLE CITY PWS

DANVILLE WATER SYSTEM

REYNOLDSBURG CITY PWS

GREENE CO.-NORTHWEST REG WATER

WARREN CO. FRANKLIN AREA PWS

ROSS COUNTY WATER CO INC PWS

STOW PUBLIC WATER SYSTEM

GAHANNA CITY PWS

FAIRBORN PUBLIC WATER SYSTEM

PAINESVILLE CITY PWS

BOWLING GREEN CITY

WHEELING WATER

KENT CITY PWS

NORTH RIDGEVILLE CITY PWS

BROWN COUNTY RURAL WATER

MANCHESTER WATER SYSTEM

BARBERTON CITY

WOOSTER CITY PWS

XENIA CITY PWS

MEDINA CITY PWS

SANDUSKY CITY

PERRYSBURG CITY

MARYSVILLE CITY PWS

NAWA

WADSWORTH CITY PWS

NORTH CANTON CITY PWS

OXFORD CITY PWS

AVON CITY PWS

AVON LAKE CITY PWS

URBANA CITY PWS

ALLIANCE CITY PWS

NILES CITY PWS

CHILLICOTHE CITY PWS

SYLVANIA CITY

GALLIA CO RURAL WATER ASSOCIATION