City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#11065
Andrews
County, IN
6 F
#11066 Clifton Park
County, NY
6 F
#11067 Coal City
County, IL
6 F
#11068 Collinwood
County, TN
6 F
#11069 Dilliner
County, PA
6 F
#11070 Garvin
County, OK
6 F
#11071 Hennessey
County, OK
6 F
#11072 Mansfield
County, LA
6 F
#11073 New Blaine
County, AR
6 F
#11074 North Pole
County, AK
6 F
#11075 Washington
County, GA
6 F
#11076 White Sulphur Springs
County, WV
6 F
#11077 Bloomington
County, TX
5 F
#11078 Cobleskill
County, NY
5 F
#11079 Fountain Green
County, UT
5 F
#11080 Galva
County, IL
5 F
#11081 Gilbert
County, WV
5 F
#11082 Lake Providence
County, LA
5 F
#11083 Lowville
County, NY
5 F
#11084 Maidesville
County, WV
5 F
#11085 Wagoner
County, OK
5 F
#11086 Walnutport
County, PA
5 F
#11087 Belleville
County, KS
4 F
#11088 Elsinore
County, UT
4 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.