City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9577
Clinton
County, UT
60 C
#9578 Cottonport
County, LA
60 C
#9579 Delray Beach
County, FL
60 C
#9580 Denton
County, NC
60 C
#9581 Dexter
County, NM
60 C
#9582 Diamond
County, IL
60 C
#9583 Dieterich
County, IL
60 C
#9584 Dry Prong
County, LA
60 C
#9585 Eagle Pass
County, TX
60 C
#9586 East Bangor
County, PA
60 C
#9587 Frostproof
County, FL
60 C
#9588 Fullerton
County, NE
60 C
#9589 Fuquay-Varina
County, NC
60 C
#9590 Galena Park
County, TX
60 C
#9591 Garland
County, UT
60 C
#9592 Germantown
County, IL
60 C
#9593 Gila Bend
County, AZ
60 C
#9594 Goodwater
County, AL
60 C
#9595 Gurnee
County, IL
60 C
#9596 Haskell
County, OK
60 C
#9597 Haynesville
County, LA
60 C
#9598 Holden
County, MA
60 C
#9599 Jacksonville Beach
County, FL
60 C
#9600 Jamestown
County, TN
60 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.