WaterQ

City Water Quality Rankings in Ohio

417 cities ranked by drinking water quality.

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Popular city water quality comparisons

Amherst, OH vs Aurora, OH Compare → Austintown, OH vs Bainbridge Twp, OH Compare → Blacklick, OH vs Brewster, OH Compare → Canal Fulton, OH vs Eaton, OH Compare →

Trending Cities

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#49
Cincinnati
County, OH
99 A
#50
Columbia Station
County, OH
99 A
#51
Enon
County, OH
99 A
#52
Fayette
County, OH
99 A
#53
Ada
County, OH
98 A
#54
Avon
County, OH
98 A
#55
Bradford
County, OH
98 A
#56
Bryan
County, OH
98 A
#57
Burton
County, OH
98 A
#58
Canal Winchester
County, OH
98 A
#59
Canfield
County, OH
98 A
#60
Clyde
County, OH
98 A
#61
Edgerton
County, OH
98 A
#62
Englewood
County, OH
98 A
#63
Findlay
County, OH
98 A
#64
Franklin
County, OH
98 A
#65
Glendale
County, OH
98 A
#66
Hamilton
County, OH
98 A
#67
Harrison
County, OH
98 A
#68
Kalida
County, OH
98 A
#69
Lancaster
County, OH
98 A
#70
Leipsic
County, OH
98 A
#71
Liberty Center
County, OH
98 A
#72
Loveland
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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