City Water Quality Rankings in Ohio
417 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#217
Dresden
County, OH
90 A
#218 Lakewood
County, OH
90 A
#219 Little Hocking
County, OH
90 A
#220 Lorain
County, OH
90 A
#221 Navarre
County, OH
90 A
#222 Norton
County, OH
90 A
#223 Springfield
County, OH
90 A
#224 Williamsburg
County, OH
90 A
#225 Windham
County, OH
90 A
#226 Wintersville
County, OH
90 A
#227 Youngstown
County, OH
90 A
#228 Ashville
County, OH
89 B
#229 Chauncey
County, OH
89 B
#230 Hiram
County, OH
89 B
#231 Olmsted Twp
County, OH
89 B
#232 South Lebanon
County, OH
89 B
#233 Antwerp
County, OH
88 B
#234 Ashland
County, OH
88 B
#235 Batavia
County, OH
88 B
#236 Bellevue
County, OH
88 B
#237 Brookville
County, OH
88 B
#238 Circleville
County, OH
88 B
#239 Cleves
County, OH
88 B
#240 Cortland
County, OH
88 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.