City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#313
Eden Prairie
County, MN
100 A
#314 Eden Valley
County, MN
100 A
#315 Edgefield
County, SC
100 A
#316 Edgewater
County, CO
100 A
#317 Edgewood
County, NM
100 A
#318 Edgewood
County, WA
100 A
#319 Edinburgh
County, IN
100 A
#320 Edwardsburg
County, MI
100 A
#321 El Rito
County, NM
100 A
#322 El Segundo
County, CA
100 A
#323 Eldora
County, IA
100 A
#324 Elgin
County, MN
100 A
#325 Elk Grove
County, CA
100 A
#326 Elkhart Lake
County, WI
100 A
#327 Elko-New Market
County, MN
100 A
#328 Ellensburg
County, WA
100 A
#329 Ellisburg
County, NY
100 A
#330 Elma
County, NY
100 A
#331 Elmira
County, NY
100 A
#332 Elmwood
County, NE
100 A
#333 Emmett
County, ID
100 A
#334 England
County, AR
100 A
#335 Enosburg Falls
County, VT
100 A
#336 Erick
County, OK
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.