City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#145
Burlington
County, VT
100 A
#146 Burnside
County, KY
100 A
#147 Burnsville
County, MN
100 A
#148 Burnsville
County, NC
100 A
#149 Burton
County, MI
100 A
#150 Burwell
County, NE
100 A
#151 Butler
County, IN
100 A
#152 Buttonwillow
County, CA
100 A
#153 Byron
County, GA
100 A
#154 Cabazon
County, CA
100 A
#155 Cabot
County, AR
100 A
#156 Cahokia Heights
County, IL
100 A
#157 Caldwell
County, AR
100 A
#158 Caledonia
County, MI
100 A
#159 Caledonia
County, NY
100 A
#160 Calimesa
County, CA
100 A
#161 Calumet
County, MI
100 A
#162 Calvert City
County, KY
100 A
#163 Camp Meeker
County, CA
100 A
#164 Camp Shelby
County, MS
100 A
#165 Canal Fulton
County, OH
100 A
#166 Canton
County, GA
100 A
#167 Canton
County, MI
100 A
#168 Cape Vincent
County, NY
100 A
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.