City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#1513
Frankfort
County, MI
98 A
#1514 Franklin Lakes
County, NJ
98 A
#1515 Frazee
County, MN
98 A
#1516 Freemanville
County, AL
98 A
#1517 Friendsville
County, TN
98 A
#1518 Friendswood
County, TX
98 A
#1519 Frisco City
County, AL
98 A
#1520 Fruitport
County, MI
98 A
#1521 Galesburg
County, MI
98 A
#1522 Gallatin
County, TN
98 A
#1523 Galt
County, CA
98 A
#1524 Garden City
County, ID
98 A
#1525 Garden City
County, NY
98 A
#1526 Gardendale
County, TX
98 A
#1527 Gate City
County, VA
98 A
#1528 Genesee
County, MI
98 A
#1529 Geneva
County, NY
98 A
#1530 Geneva
County, OH
98 A
#1531 Gibsonia
County, PA
98 A
#1532 Gillett
County, WI
98 A
#1533 Gleason
County, TN
98 A
#1534 Glendale
County, OH
98 A
#1535 Glenrock
County, WY
98 A
#1536 Gloucester
County, VA
98 A
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.