City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#8593
Carol Stream
County, IL
71 C
#8594 Chadbourn
County, NC
71 C
#8595 Cheneyville
County, LA
71 C
#8596 Chiefland
County, FL
71 C
#8597 Coal Valley
County, IL
71 C
#8598 Columbia
County, SC
71 C
#8599 Coquille
County, OR
71 C
#8600 Crosbyton
County, TX
71 C
#8601 Cyril
County, OK
71 C
#8602 Des Peres
County, FL
71 C
#8603 East Bridgewater
County, MA
71 C
#8604 Elba
County, AL
71 C
#8605 Elberfeld
County, IN
71 C
#8606 Emporia
County, KS
71 C
#8607 Estill
County, SC
71 C
#8608 Fall Creek
County, WI
71 C
#8609 Farmland
County, IN
71 C
#8610 Fordoche
County, LA
71 C
#8611 Fort Lupton
County, CO
71 C
#8612 Franklin Park
County, IL
71 C
#8613 Goliad
County, TX
71 C
#8614 Gouverneur
County, NY
71 C
#8615 Greenville
County, NY
71 C
#8616 Greenwich
County, OH
71 C
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.