City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#7441
California City
County, CA
79 B
#7442 Camp Hill
County, PA
79 B
#7443 Cannon Beach
County, OR
79 B
#7444 Centerville
County, IA
79 B
#7445 Chattahoochee
County, FL
79 B
#7446 Christiansted
County, VI
79 B
#7447 Clyde
County, NC
79 B
#7448 Cool Ridge
County, WV
79 B
#7449 Crescent
County, OK
79 B
#7450 Dorado
County, PR
79 B
#7451 Dumas
County, TX
79 B
#7452 Dunlap
County, TN
79 B
#7453 Eagle Lake
County, FL
79 B
#7454 Fayetteville
County, PA
79 B
#7455 Flemington
County, WV
79 B
#7456 Fort Gibson
County, OK
79 B
#7457 Frankfort
County, IL
79 B
#7458 Galesville
County, WI
79 B
#7459 Genoa
County, IL
79 B
#7460 Gilman
County, IL
79 B
#7461 Gilmer
County, TX
79 B
#7462 Glen Gardner
County, NJ
79 B
#7463 Glenview
County, IL
79 B
#7464 Goldboro
County, NC
79 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.