City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9553
Sanford
County, MI
61 C
#9554 St Louis
County, MO
61 C
#9555 Steinhatchee
County, FL
61 C
#9556 Tolleson
County, AZ
61 C
#9557 Washingtonville
County, NY
61 C
#9558 Weatherford
County, TX
61 C
#9559 West Jefferson
County, OH
61 C
#9560 Westover
County, WV
61 C
#9561 Aguadilla
County, PR
60 C
#9562 Albion
County, MI
60 C
#9563 Alexander
County, AR
60 C
#9564 Ashland
County, MA
60 C
#9565 Bensenville
County, IL
60 C
#9566 Berkeley Springs
County, WV
60 C
#9567 Berwyn
County, IL
60 C
#9568 Brilliant
County, AL
60 C
#9569 Brtidgewater
County, NJ
60 C
#9570 Burnham
County, IL
60 C
#9571 Calmar
County, IA
60 C
#9572 Campton
County, KY
60 C
#9573 Cape Coral
County, FL
60 C
#9574 Cecilia
County, LA
60 C
#9575 Charleston
County, IL
60 C
#9576 Cherokee
County, OK
60 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.