City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10993
Auburn
County, KS
13 F
#10994 Bentleyville
County, PA
13 F
#10995 Farmerville
County, LA
13 F
#10996 Florida
County, NY
13 F
#10997 Fort Hall
County, ID
13 F
#10998 Greentown
County, PA
13 F
#10999 Hackett
County, AR
13 F
#11000 Hawthorn
County, PA
13 F
#11001 Lock Haven
County, PA
13 F
#11002 Logan
County, WV
13 F
#11003 Monon
County, IN
13 F
#11004 Parks
County, LA
13 F
#11005 Perry
County, OK
13 F
#11006 Sussex
County, NJ
13 F
#11007 Thief River Falls
County, MN
13 F
#11008 Alta
County, UT
12 F
#11009 Barre
County, MA
12 F
#11010 Bethlehem
County, NH
12 F
#11011 Cameron
County, WV
12 F
#11012 Cotulla
County, TX
12 F
#11013 Floral City
County, FL
12 F
#11014 Fonda
County, NY
12 F
#11015 Grafton
County, MA
12 F
#11016 Gunnison
County, UT
12 F
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.