City Water Quality Rankings in Ohio
431 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#193
Ripley
County, OH
94 A
#194 Roaming Shores
County, OH
94 A
#195 Shelby
County, OH
94 A
#196 Sylvania
County, OH
94 A
#197 Troy
County, OH
94 A
#198 Wadsworth
County, OH
94 A
#199 Washington Court House
County, OH
94 A
#200 Xenia
County, OH
94 A
#201 Canton
County, OH
93 A
#202 Columbiana
County, OH
93 A
#203 Lebanon
County, OH
93 A
#204 Lexington
County, OH
93 A
#205 South Point
County, OH
93 A
#206 W Salem
County, OH
93 A
#207 Bolivar
County, OH
92 A
#208 Carrollton
County, OH
92 A
#209 Chauncey
County, OH
92 A
#210 Fairport Harbor
County, OH
92 A
#211 Felicity
County, OH
92 A
#212 Greenville
County, OH
92 A
#213 Groveport
County, OH
92 A
#214 Jamestown
County, OH
92 A
#215 Lorain
County, OH
92 A
#216 Marietta
County, OH
92 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.