City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10585
Ferriday
County, LA
27 F
#10586 Fillmore
County, UT
27 F
#10587 Hudson Oaks
County, TX
27 F
#10588 Jal
County, NM
27 F
#10589 Lecanto
County, FL
27 F
#10590 Lemoore
County, CA
27 F
#10591 Pelham
County, AL
27 F
#10592 Peoria Heights
County, IL
27 F
#10593 Rangely
County, CO
27 F
#10594 Shavano Park
County, TX
27 F
#10595 Yorkville
County, OH
27 F
#10596 Bagdad
County, AZ
26 F
#10597 Bridgeport
County, TX
26 F
#10598 Bullhead City
County, AZ
26 F
#10599 Byesville
County, OH
26 F
#10600 Carthage
County, IL
26 F
#10601 Charles Town
County, WV
26 F
#10602 Clarksdale
County, MS
26 F
#10603 Coushatta
County, LA
26 F
#10604 Dallas
County, NC
26 F
#10605 Davie
County, FL
26 F
#10606 Detroit
County, TX
26 F
#10607 Kempner
County, TX
26 F
#10608 Kings Mountain
County, NC
26 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.