City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#3265
Franklinville
County, NY
94 A
#3266 Frazier Park
County, CA
94 A
#3267 Frederic
County, WI
94 A
#3268 Freeland
County, WA
94 A
#3269 Freeport
County, IL
94 A
#3270 Fremont
County, OH
94 A
#3271 Friday Harbor
County, WA
94 A
#3272 Gadsden
County, AL
94 A
#3273 Garden City
County, MI
94 A
#3274 Geismar
County, LA
94 A
#3275 Georgetown
County, GA
94 A
#3276 Gillette
County, WY
94 A
#3277 Girard
County, IL
94 A
#3278 Glen Cove
County, NY
94 A
#3279 Glens Falls
County, NY
94 A
#3280 Glenwood
County, GA
94 A
#3281 Grand Blanc
County, MI
94 A
#3282 Grand Coulee
County, WA
94 A
#3283 Grand Island
County, NE
94 A
#3284 Grand Meadow
County, MN
94 A
#3285 Grandview
County, WA
94 A
#3286 Grangeville
County, ID
94 A
#3287 Granite Falls
County, NC
94 A
#3288 Graniteville
County, SC
94 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.