City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10561
Buffalo
County, IL
28 F
#10562 Carlsbad
County, NM
28 F
#10563 Carnesville
County, GA
28 F
#10564 Christopher
County, IL
28 F
#10565 East Carbon
County, UT
28 F
#10566 Faith
County, NC
28 F
#10567 Ford Heights
County, IL
28 F
#10568 Grayson
County, LA
28 F
#10569 Howe
County, OK
28 F
#10570 Manhattan
County, IL
28 F
#10571 Marietta
County, OK
28 F
#10572 Morehead
County, KY
28 F
#10573 Mount Union
County, PA
28 F
#10574 New Paris
County, PA
28 F
#10575 Palisade
County, CO
28 F
#10576 Point Pleasant
County, NJ
28 F
#10577 Pompton Lakes
County, NJ
28 F
#10578 Prineville
County, OR
28 F
#10579 Provencal
County, LA
28 F
#10580 Surf City
County, NC
28 F
#10581 Tchula
County, MS
28 F
#10582 Utica
County, MS
28 F
#10583 Vienna
County, IL
28 F
#10584 Cache
County, OK
27 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.