City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10105
Tamarac
County, FL
44 F
#10106 Tonopah
County, NV
44 F
#10107 Upton
County, MA
44 F
#10108 Winchester
County, MA
44 F
#10109 Wink
County, TX
44 F
#10110 Beaver
County, OK
43 F
#10111 Blossom
County, TX
43 F
#10112 Burgaw
County, NC
43 F
#10113 Center
County, TX
43 F
#10114 Chinook
County, MT
43 F
#10115 Chrisman
County, IL
43 F
#10116 Dania Beach
County, FL
43 F
#10117 Gladewater
County, TX
43 F
#10118 Greensburg
County, LA
43 F
#10119 Hartford
County, KY
43 F
#10120 Holland
County, TX
43 F
#10121 Ingleside
County, TX
43 F
#10122 Klamath Falls
County, OR
43 F
#10123 Lacenter
County, KY
43 F
#10124 Livingston
County, TN
43 F
#10125 Logan
County, WV
43 F
#10126 Malakoff
County, TX
43 F
#10127 Miami Beach
County, FL
43 F
#10128 Mount Prospect
County, IL
43 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.