City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10345
Corozal
County, PR
36 F
#10346 Deltona
County, FL
36 F
#10347 Elgin
County, OK
36 F
#10348 Ely
County, MN
36 F
#10349 Elysburg
County, PA
36 F
#10350 Hamlin
County, TX
36 F
#10351 Hinsdale
County, MA
36 F
#10352 Jersey Shore
County, PA
36 F
#10353 Kaysville
County, UT
36 F
#10354 Kuttawa
County, KY
36 F
#10355 Miles City
County, MT
36 F
#10356 Naguabo
County, PR
36 F
#10357 Omaha
County, AR
36 F
#10358 Opalocka
County, FL
36 F
#10359 Port Crane
County, NY
36 F
#10360 Pottsville
County, PA
36 F
#10361 Raleigh
County, NC
36 F
#10362 Rosemount
County, MN
36 F
#10363 Scituate
County, MA
36 F
#10364 Starke
County, FL
36 F
#10365 Stoughton
County, MA
36 F
#10366 Sunrise
County, FL
36 F
#10367 Syracuse
County, UT
36 F
#10368 Tarboro
County, NC
36 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.