City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10153
Everglades City
County, FL
42 F
#10154 Falmouth
County, MA
42 F
#10155 Foley
County, AL
42 F
#10156 Four Oaks
County, NC
42 F
#10157 Fuquay-Varina
County, NC
42 F
#10158 Garciasville
County, TX
42 F
#10159 Haydenville
County, MA
42 F
#10160 Howard
County, PA
42 F
#10161 Johnsburg
County, IL
42 F
#10162 Kingsland
County, GA
42 F
#10163 Laie
County, HI
42 F
#10164 Lone Grove
County, OK
42 F
#10165 Mccamey
County, TX
42 F
#10166 Medford
County, NJ
42 F
#10167 Mohave Valley
County, AZ
42 F
#10168 Nettie
County, WV
42 F
#10169 North Andover
County, MA
42 F
#10170 Oswego
County, IL
42 F
#10171 Pana
County, IL
42 F
#10172 Rosedale
County, MS
42 F
#10173 Sapulpa
County, OK
42 F
#10174 Slater
County, MO
42 F
#10175 South Deerfield
County, MA
42 F
#10176 South Elgin
County, IL
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.