City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10681
Exmore
County, VA
22 F
#10682 Glenwood
County, AR
22 F
#10683 Hobe Sound
County, FL
22 F
#10684 Kamas
County, UT
22 F
#10685 Kewanee
County, IL
22 F
#10686 Maitland
County, FL
22 F
#10687 Mcdoqwell
County, KY
22 F
#10688 Melrose Park
County, IL
22 F
#10689 Montville
County, NJ
22 F
#10690 Parsons
County, KS
22 F
#10691 Paulding
County, OH
22 F
#10692 Roslyn
County, NY
22 F
#10693 Union City
County, PA
22 F
#10694 Wellsville
County, OH
22 F
#10695 Burkburnett
County, TX
21 F
#10696 Grambling
County, LA
21 F
#10697 Independence
County, LA
21 F
#10698 Lambert
County, MS
21 F
#10699 Mason
County, WV
21 F
#10700 Monteagle
County, TN
21 F
#10701 Rogers
County, TX
21 F
#10702 Rutherford College
County, NC
21 F
#10703 Taylor
County, AZ
21 F
#10704 Wallops Island
County, VA
21 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.