City Water Quality Rankings in Ohio
431 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#361
Genoa
County, OH
75 B
#362 Jackson
County, OH
75 B
#363 Rockford
County, OH
75 B
#364 Steubenville
County, OH
75 B
#365 Caldwell
County, OH
74 C
#366 Crooksville
County, OH
74 C
#367 Forest
County, OH
74 C
#368 Conneaut
County, OH
73 C
#369 Hudson
County, OH
73 C
#370 Bucyrus
County, OH
72 C
#371 Lagrange
County, OH
72 C
#372 Mcclure
County, OH
72 C
#373 Middleport
County, OH
72 C
#374 Greenwich
County, OH
71 C
#375 Lithopolis
County, OH
71 C
#376 Sardinia
County, OH
71 C
#377 Walnut Creek
County, OH
71 C
#378 Bethel
County, OH
70 C
#379 Logan
County, OH
70 C
#380 Urbana
County, OH
70 C
#381 Galion
County, OH
69 C
#382 Powhatan Point
County, OH
69 C
#383 Stow
County, OH
69 C
#384 Sugarcreek
County, OH
68 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.