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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#73
Lowell
County, OH
98 A
#74
Magnolia
County, OH
98 A
#75
Mechanicsburg
County, OH
98 A
#76
Medina
County, OH
98 A
#77
Milan
County, OH
98 A
#78
New Carlisle
County, OH
98 A
#79
New Miami
County, OH
98 A
#80
Norwalk
County, OH
98 A
#81
Pleasant Hill
County, OH
98 A
#82
Port Clinton
County, OH
98 A
#83
Reynoldsburg
County, OH
98 A
#84
Rossburg
County, OH
98 A
#85
Silver Lake
County, OH
98 A
#86
St Henry
County, OH
98 A
#87
Uniontown
County, OH
98 A
#88
Avon Lake
County, OH
97 A
#89
Baltimore
County, OH
97 A
#90
Chardon
County, OH
97 A
#91
Franklin Furnace
County, OH
97 A
#92
Georgetown
County, OH
97 A
#93
Hubbard
County, OH
97 A
#94
Lakeview
County, OH
97 A
#95
Minerva
County, OH
97 A
#96
New Philadelphia
County, OH
97 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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