City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#7249
Friendship
County, NY
80 B
#7250 Front Royal
County, VA
80 B
#7251 Gaylord
County, MN
80 B
#7252 Geneseo
County, IL
80 B
#7253 Geneva
County, IL
80 B
#7254 Georgiana
County, AL
80 B
#7255 Giddings
County, TX
80 B
#7256 Glencoe
County, IL
80 B
#7257 Gloucester
County, NJ
80 B
#7258 Gothenburg
County, NE
80 B
#7259 Graham
County, TX
80 B
#7260 Gravette
County, AR
80 B
#7261 Greenwood Springs
County, MS
80 B
#7262 Gretna
County, FL
80 B
#7263 Grove City
County, PA
80 B
#7264 Guthrie
County, KY
80 B
#7265 Hawthorne
County, NV
80 B
#7266 Hays
County, KS
80 B
#7267 Hazen
County, AR
80 B
#7268 Hemlock
County, MI
80 B
#7269 Henryville
County, IN
80 B
#7270 Herriman
County, UT
80 B
#7271 Hiawatha
County, IA
80 B
#7272 Hillside
County, IL
80 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.