City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#8305
Skokie
County, IL
74 C
#8306 Sloan
County, IA
74 C
#8307 Stamford
County, TX
74 C
#8308 Starkville
County, MS
74 C
#8309 State Center
County, IA
74 C
#8310 Steele
County, MO
74 C
#8311 Sterling
County, KS
74 C
#8312 Sutton
County, MA
74 C
#8313 Sykesville
County, PA
74 C
#8314 Temecula
County, CA
74 C
#8315 Tewksbury
County, MA
74 C
#8316 Thackerville
County, OK
74 C
#8317 Tiffin
County, IA
74 C
#8318 Toquerville
County, UT
74 C
#8319 Tutwiler
County, MS
74 C
#8320 Uintah City
County, UT
74 C
#8321 Utuado
County, PR
74 C
#8322 Valley
County, AL
74 C
#8323 Valley View
County, PA
74 C
#8324 Van Meter
County, IA
74 C
#8325 Vienna
County, WV
74 C
#8326 Village Of Golf
County, FL
74 C
#8327 Waldo
County, FL
74 C
#8328 Walls
County, MS
74 C
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.