City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#8665
Converse
County, IN
67 C
#8666 Danvers
County, IL
67 C
#8667 Danville
County, PA
67 C
#8668 East Longmeadow
County, MA
67 C
#8669 Eaton Rapids
County, MI
67 C
#8670 Elon
County, NC
67 C
#8671 Estill
County, SC
67 C
#8672 Ford City
County, PA
67 C
#8673 Frankfort
County, KY
67 C
#8674 Frontenac
County, KS
67 C
#8675 Goodman
County, MS
67 C
#8676 Hayfork
County, CA
67 C
#8677 Humboldt
County, AZ
67 C
#8678 Jasper
County, TX
67 C
#8679 Jefferson
County, NC
67 C
#8680 Jeffersonville
County, OH
67 C
#8681 Jennerstown
County, PA
67 C
#8682 Kentwood
County, LA
67 C
#8683 Lake Alfred
County, FL
67 C
#8684 Lemitar
County, NM
67 C
#8685 Levelland
County, TX
67 C
#8686 Lockney
County, TX
67 C
#8687 Matteson
County, IL
67 C
#8688 Mcclure
County, OH
67 C
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.