City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#5665
Amherst
County, WI
87 B
#5666 Arthur
County, IL
87 B
#5667 Asheboro
County, NC
87 B
#5668 Baden
County, PA
87 B
#5669 Bell Arthur
County, NC
87 B
#5670 Belton
County, MO
87 B
#5671 Bernie
County, MO
87 B
#5672 Berrien Springs
County, MI
87 B
#5673 Bowling Green
County, MO
87 B
#5674 Boyce
County, LA
87 B
#5675 Bridgeport
County, OH
87 B
#5676 Brighton
County, CO
87 B
#5677 Brownsboro
County, TX
87 B
#5678 Buchanan
County, GA
87 B
#5679 Buhl
County, ID
87 B
#5680 Burlington
County, NJ
87 B
#5681 Burney
County, CA
87 B
#5682 Caledonia
County, MN
87 B
#5683 Cameron
County, MO
87 B
#5684 Camp Point
County, IL
87 B
#5685 Castleberry
County, AL
87 B
#5686 Centreville
County, AL
87 B
#5687 Cheswick
County, PA
87 B
#5688 Coleman
County, MI
87 B
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.