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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#1
Amherst
County, OH
100 A
#2
Aurora
County, OH
100 A
#3
Austintown
County, OH
100 A
#4
Bainbridge Twp
County, OH
100 A
#5
Blacklick
County, OH
100 A
#6
Brewster
County, OH
100 A
#7
Canal Fulton
County, OH
100 A
#8
Eaton
County, OH
100 A
#9
Fort Loramie
County, OH
100 A
#10
Fort Recovery
County, OH
100 A
#11
Fostoria
County, OH
100 A
#12
Frankfort
County, OH
100 A
#13
Fredericktown
County, OH
100 A
#14
Garrettsville
County, OH
100 A
#15
Germantown
County, OH
100 A
#16
Gibsonburg
County, OH
100 A
#17
Girard
County, OH
100 A
#18
Grand Rapids
County, OH
100 A
#19
Grove City
County, OH
100 A
#20
Hartville
County, OH
100 A
#21
Kansas 44841
County, OH
100 A
#22
Kettering
County, OH
100 A
#23
Lodi
County, OH
100 A
#24
Long Bottom
County, OH
100 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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