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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#145
Versailles
County, OH
95 A
#146
Woodville
County, OH
95 A
#147
Ashley
County, OH
94 A
#148
Bluffton
County, OH
94 A
#149
Botkins
County, OH
94 A
#150
Bremen
County, OH
94 A
#151
Fayetteville
County, OH
94 A
#152
Greenfield
County, OH
94 A
#153
Hillsboro
County, OH
94 A
#154
Huron
County, OH
94 A
#155
Lynchburg
County, OH
94 A
#156
Mcdonald
County, OH
94 A
#157
North Baltimore
County, OH
94 A
#158
Norwood
County, OH
94 A
#159
Powhattan Point
County, OH
94 A
#160
Ripley
County, OH
94 A
#161
Shelby
County, OH
94 A
#162
Wadsworth
County, OH
94 A
#163
Waterville
County, OH
94 A
#164
Yellow Springs
County, OH
94 A
#165
Bellville
County, OH
93 A
#166
Canton
County, OH
93 A
#167
Carlisle
County, OH
93 A
#168
Chillicothe
County, OH
93 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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