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

Fairbanks, AK Fresno, CA San Jose, CA Sacramento, CA San Francisco, CA Houston, TX Fargo, ND
#289
Bridgeport
County, OH
87 B
#290
Jerusalem
County, OH
87 B
#291
Trotwood
County, OH
87 B
#292
Athens
County, OH
86 B
#293
Chagrin Falls
County, OH
86 B
#294
Columbus
County, OH
86 B
#295
Delphos
County, OH
86 B
#296
Elida
County, OH
86 B
#297
Glenford
County, OH
86 B
#298
Huber Heights
County, OH
86 B
#299
Jefferson
County, OH
86 B
#300
Obetz
County, OH
86 B
#301
Reading
County, OH
86 B
#302
Shreve
County, OH
86 B
#303
Warsaw
County, OH
86 B
#304
Williamsburg
County, OH
86 B
#305
Arcanum
County, OH
85 B
#306
Cedarville
County, OH
85 B
#307
London
County, OH
85 B
#308
Ravenna
County, OH
85 B
#309
Batavia
County, OH
84 B
#310
Camden
County, OH
84 B
#311
Corning
County, OH
84 B
#312
Lockland
County, OH
84 B

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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