City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10177
Hereford
County, TX
49 D
#10178 Holland
County, TX
49 D
#10179 Holly
County, MI
49 D
#10180 Howard
County, PA
49 D
#10181 Huntington
County, NY
49 D
#10182 Kenedy
County, TX
49 D
#10183 Lawrence
County, MI
49 D
#10184 Margate
County, FL
49 D
#10185 Mountain Green
County, UT
49 D
#10186 Murphysboro
County, IL
49 D
#10187 Mustang
County, OK
49 D
#10188 Nauvoo
County, IL
49 D
#10189 Pineville
County, LA
49 D
#10190 Ranger
County, TX
49 D
#10191 Roosevelt
County, UT
49 D
#10192 Strasburg
County, CO
49 D
#10193 Terry
County, MS
49 D
#10194 Winnsboro
County, LA
49 D
#10195 Woodland Hills
County, UT
49 D
#10196 Abbeville
County, AL
48 D
#10197 Augusta
County, WI
48 D
#10198 Beckville
County, TX
48 D
#10199 Berryville
County, VA
48 D
#10200 Booneville
County, KY
48 D
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.