WaterQ

City Water Quality Rankings in Ohio

431 cities ranked by drinking water quality.

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Popular city water quality comparisons

Amherst, OH vs Avon Lake, OH Compare → Bainbridge Twp, OH vs Beavercreek, OH Compare → Bedford, OH vs Blacklick, OH Compare → Brewster, OH vs Canal Fulton, OH Compare →

Trending Cities

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#73
Navarre
County, OH
99 A
#74
Newark
County, OH
99 A
#75
Norwalk
County, OH
99 A
#76
Portsmouth
County, OH
99 A
#77
Ada
County, OH
98 A
#78
Arlington
County, OH
98 A
#79
Aurora
County, OH
98 A
#80
Avon
County, OH
98 A
#81
Bexley
County, OH
98 A
#82
Buckeye Lake
County, OH
98 A
#83
Burton
County, OH
98 A
#84
Canal Winchester
County, OH
98 A
#85
Canfield
County, OH
98 A
#86
Clyde
County, OH
98 A
#87
Covington
County, OH
98 A
#88
Creston
County, OH
98 A
#89
Edgerton
County, OH
98 A
#90
Englewood
County, OH
98 A
#91
Findlay
County, OH
98 A
#92
Geneva
County, OH
98 A
#93
Glendale
County, OH
98 A
#94
Kalida
County, OH
98 A
#95
Lancaster
County, OH
98 A
#96
Liberty Center
County, OH
98 A

Frequently Asked Questions

How are city water quality rankings calculated in Ohio?

WaterQ city rankings are based on EPA SDWIS data across local public water systems, including contaminant detections, compliance violations, and recency-weighted score signals.

Can I compare two cities in Ohio?

Yes. Use the city comparison links on this page or open the Compare tool to evaluate two cities side by side on score, grade, and water system coverage.

How often does WaterQ refresh city data?

City-level metrics refresh when new EPA data is processed. Check city pages for latest score and violation context.

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