City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#11257
Delight
County, AR
0 F
#11258 Desoto
County, KS
0 F
#11259 Dewey
County, OK
0 F
#11260 Dickeyville
County, WI
0 F
#11261 Dickinson
County, AL
0 F
#11262 Dillingham
County, AK
0 F
#11263 Dona Ana
County, NM
0 F
#11264 Dover
County, NJ
0 F
#11265 Dubach
County, LA
0 F
#11266 Dublin
County, TX
0 F
#11267 Duncan
County, OK
0 F
#11268 Dundee
County, FL
0 F
#11269 Durand
County, IL
0 F
#11270 Durbin
County, WV
0 F
#11271 East Orange
County, NJ
0 F
#11272 East Tawakoni
County, TX
0 F
#11273 Eatonville
County, FL
0 F
#11274 Edinburg
County, IL
0 F
#11275 Edwards
County, MS
0 F
#11276 Egan
County, LA
0 F
#11277 Eielson Afb
County, AK
0 F
#11278 El Cajon
County, CA
0 F
#11279 Ellenboro
County, NC
0 F
#11280 Ellsworth
County, PA
0 F
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.