City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#6433
Franklin
County, TN
84 B
#6434 Franklin
County, VA
84 B
#6435 Geneva
County, AL
84 B
#6436 Ghent
County, KY
84 B
#6437 Girard
County, KS
84 B
#6438 Glorieta
County, NM
84 B
#6439 Goochland
County, VA
84 B
#6440 Goodland
County, KS
84 B
#6441 Grayling
County, MI
84 B
#6442 Greenburgh
County, NY
84 B
#6443 Greenville
County, GA
84 B
#6444 Greybull
County, WY
84 B
#6445 Groton
County, CT
84 B
#6446 Grottoes
County, VA
84 B
#6447 Hale Center
County, TX
84 B
#6448 Hammonton
County, NJ
84 B
#6449 Hardinsburg
County, KY
84 B
#6450 Hastings
County, PA
84 B
#6451 Hauppauge
County, NY
84 B
#6452 Havana
County, FL
84 B
#6453 Haw River
County, NC
84 B
#6454 Helena
County, AL
84 B
#6455 Hillsdale
County, MI
84 B
#6456 Hinsdale
County, IL
84 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.