City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#313
Franklin Square
County, NY
100 A
#314 Fredericktown
County, OH
100 A
#315 Fredonia
County, WI
100 A
#316 Freeman
County, MO
100 A
#317 Freemanville
County, AL
100 A
#318 Freeport
County, NY
100 A
#319 Freeport
County, IL
100 A
#320 Fremont
County, NE
100 A
#321 Fruitdale
County, AL
100 A
#322 Ft. Eustis
County, VA
100 A
#323 Funkstown
County, MD
100 A
#324 Garberville
County, CA
100 A
#325 Garden City
County, ID
100 A
#326 Garden City Park
County, NY
100 A
#327 Garden Grove
County, CA
100 A
#328 Garfield
County, AR
100 A
#329 Garrettsville
County, OH
100 A
#330 Gasport
County, NY
100 A
#331 Gassville
County, AR
100 A
#332 Gateway
County, AR
100 A
#333 Genesee
County, ID
100 A
#334 Geneseo
County, NY
100 A
#335 Geneva
County, NE
100 A
#336 Gerber
County, CA
100 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.