City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9985
Berea
County, KY
46 D
#9986 Capron
County, IL
46 D
#9987 Carroll Valley
County, PA
46 D
#9988 Chipley
County, FL
46 D
#9989 Colstrip
County, MT
46 D
#9990 Columbus
County, NM
46 D
#9991 Cowen
County, WV
46 D
#9992 Elmwood Park
County, IL
46 D
#9993 Elsa
County, TX
46 D
#9994 Evergreen
County, CO
46 D
#9995 Farmington
County, NM
46 D
#9996 Gamerco
County, NM
46 D
#9997 Genola
County, UT
46 D
#9998 Gore
County, OK
46 D
#9999 Gorham
County, IL
46 D
#10000 Gould
County, OK
46 D
#10001 Hayesville
County, NC
46 D
#10002 Hemphill
County, TX
46 D
#10003 Henrietta
County, TX
46 D
#10004 Industry
County, TX
46 D
#10005 Kingston
County, OK
46 D
#10006 La Verkin
County, UT
46 D
#10007 Lilly
County, PA
46 D
#10008 Longmeadow
County, MA
46 D
Frequently Asked Questions
How are city water quality rankings calculated?
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 US cities directly?
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.