City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#265
Elkhart Lake
County, WI
100 A
#266 Elko-New Market
County, MN
100 A
#267 Ellisburg
County, NY
100 A
#268 Elma
County, NY
100 A
#269 Elmwood
County, NE
100 A
#270 Emmett
County, ID
100 A
#271 England
County, AR
100 A
#272 Erick
County, OK
100 A
#273 Erie
County, CO
100 A
#274 Escondido
County, CA
100 A
#275 Essexville
County, MI
100 A
#276 Euless
County, TX
100 A
#277 Eureka
County, CA
100 A
#278 Evanston
County, IL
100 A
#279 Evanston
County, WY
100 A
#280 Fair Grove
County, MO
100 A
#281 Fair Oaks
County, CA
100 A
#282 Fairview
County, TX
100 A
#283 Falls City
County, NE
100 A
#284 Farmington
County, PA
100 A
#285 Farmington
County, MI
100 A
#286 Fayette
County, AL
100 A
#287 Federal Heights
County, CO
100 A
#288 Felton
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.