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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#169
Payne
County, OH
95 A
#170
Rittman
County, OH
95 A
#171
Springfield
County, OH
95 A
#172
Tiltonsville
County, OH
95 A
#173
Waterford
County, OH
95 A
#174
West Milton
County, OH
95 A
#175
Ashley
County, OH
94 A
#176
Bellville
County, OH
94 A
#177
Bluffton
County, OH
94 A
#178
Botkins
County, OH
94 A
#179
Fayetteville
County, OH
94 A
#180
Franklin
County, OH
94 A
#181
Fremont
County, OH
94 A
#182
Green Springs
County, OH
94 A
#183
Greenfield
County, OH
94 A
#184
Huron
County, OH
94 A
#185
Leipsic
County, OH
94 A
#186
Lynchburg
County, OH
94 A
#187
Mcdonald
County, OH
94 A
#188
Mentor
County, OH
94 A
#189
New Richmond
County, OH
94 A
#190
North Baltimore
County, OH
94 A
#191
Norwood
County, OH
94 A
#192
Powhattan Point
County, OH
94 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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