City Water Quality Rankings in Ohio
417 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#265
Waynesville
County, OH
86 B
#266 Elida
County, OH
85 B
#267 Kent
County, OH
85 B
#268 Strasburg
County, OH
85 B
#269 Warren
County, OH
85 B
#270 Zanesville
County, OH
85 B
#271 Carey
County, OH
84 B
#272 Felicity
County, OH
84 B
#273 Lordstown
County, OH
84 B
#274 Morrow
County, OH
84 B
#275 Wellston
County, OH
84 B
#276 Winesburg
County, OH
84 B
#277 Berea
County, OH
83 B
#278 Glenford
County, OH
83 B
#279 London
County, OH
83 B
#280 Sarahsville
County, OH
83 B
#281 Toledo
County, OH
83 B
#282 West Unity
County, OH
83 B
#283 Bowling Green
County, OH
82 B
#284 Camden
County, OH
82 B
#285 Cedarville
County, OH
82 B
#286 Delphos
County, OH
82 B
#287 Monroe
County, OH
82 B
#288 New Paris
County, OH
82 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.