City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10849
Rogers
County, TX
26 F
#10850 Smethport
County, PA
26 F
#10851 Spring Valley
County, NY
26 F
#10852 Timpson
County, TX
26 F
#10853 Tridell
County, UT
26 F
#10854 Utica
County, MS
26 F
#10855 Winthrop Harbor
County, IL
26 F
#10856 Yuma
County, AZ
26 F
#10857 Leadville
County, CO
25 F
#10858 Rosebud
County, TX
25 F
#10859 Russellville
County, KY
25 F
#10860 Virginia City
County, MT
25 F
#10861 West Milford
County, WV
25 F
#10862 Wetumka
County, OK
25 F
#10863 Whitehall
County, NY
25 F
#10864 Wilton Manors
County, FL
25 F
#10865 Alpine
County, CA
24 F
#10866 Carbon Cliff
County, IL
24 F
#10867 Catlettsburg
County, KY
24 F
#10868 Centerfield
County, UT
24 F
#10869 Detroit
County, TX
24 F
#10870 Ferriday
County, LA
24 F
#10871 Granville
County, IL
24 F
#10872 Greenfield
County, IL
24 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.