City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10129
New Cumberland
County, WV
43 F
#10130 New Paltz
County, NY
43 F
#10131 North Chicago
County, IL
43 F
#10132 Orange Beach
County, AL
43 F
#10133 Palm City
County, FL
43 F
#10134 Pima
County, AZ
43 F
#10135 Princeton
County, KY
43 F
#10136 Prospect Heights
County, IL
43 F
#10137 Spring Lake
County, NC
43 F
#10138 Tolleson
County, AZ
43 F
#10139 Woodland Hills
County, UT
43 F
#10140 Aguas Buenas
County, PR
42 F
#10141 Ambridge
County, PA
42 F
#10142 Aurora
County, UT
42 F
#10143 Aviston
County, IL
42 F
#10144 Bay Minette
County, AL
42 F
#10145 Beckville
County, TX
42 F
#10146 Berlin
County, CT
42 F
#10147 Butler
County, TN
42 F
#10148 Carthage
County, NY
42 F
#10149 Coleman
County, TX
42 F
#10150 Covington
County, IN
42 F
#10151 Denville
County, NJ
42 F
#10152 East Liverpool
County, OH
42 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.