City Water Quality Rankings in Ohio
417 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#337
Granville
County, OH
73 C
#338 Jackson Center
County, OH
73 C
#339 Kenton
County, OH
73 C
#340 Lucasville
County, OH
73 C
#341 Bellefontaine
County, OH
72 C
#342 St Marys
County, OH
72 C
#343 Stow
County, OH
72 C
#344 Laings
County, OH
71 C
#345 Seville
County, OH
71 C
#346 Bridgeport
County, OH
70 C
#347 Conneaut
County, OH
70 C
#348 Glandorf
County, OH
70 C
#349 Hudson
County, OH
70 C
#350 Powhatan Point
County, OH
70 C
#351 Utica
County, OH
70 C
#352 Sardinia
County, OH
69 C
#353 West Alexandria
County, OH
69 C
#354 Lima
County, OH
68 C
#355 Rockford
County, OH
68 C
#356 Bucyrus
County, OH
67 C
#357 Jeffersonville
County, OH
67 C
#358 Mcclure
County, OH
67 C
#359 Sebring
County, OH
67 C
#360 Sugarcreek
County, OH
67 C
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.