City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#5689
Courtland
County, VA
87 B
#5690 Crow Agency
County, MT
87 B
#5691 Culver
County, IN
87 B
#5692 Cumming
County, GA
87 B
#5693 Deer Park
County, TX
87 B
#5694 Dexter
County, MO
87 B
#5695 Eagle Mountain
County, UT
87 B
#5696 Eagle Point
County, OR
87 B
#5697 East Earl
County, PA
87 B
#5698 Edgar
County, WI
87 B
#5699 Edina
County, MO
87 B
#5700 Edwards Afb
County, CA
87 B
#5701 Elk Grove Village
County, IL
87 B
#5702 Elm Mott
County, TX
87 B
#5703 Evergreen
County, AL
87 B
#5704 Fairview
County, OR
87 B
#5705 Fort Collins
County, CO
87 B
#5706 Fort Myers
County, FL
87 B
#5707 Fort Payne
County, AL
87 B
#5708 Fremont
County, IN
87 B
#5709 Friendly
County, WV
87 B
#5710 Gainesville
County, TX
87 B
#5711 Gallatin
County, MO
87 B
#5712 Gaston
County, OR
87 B
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.