City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#7393
Spirit Lake
County, IA
80 B
#7394 St Clair
County, MO
80 B
#7395 St. Ansgar
County, IA
80 B
#7396 St. Paul
County, VA
80 B
#7397 Star Valley Ranch
County, WY
80 B
#7398 Ste Genevieve
County, MO
80 B
#7399 Tallsmanville
County, WV
80 B
#7400 Tecumseh
County, KS
80 B
#7401 Tipton
County, IN
80 B
#7402 Toledo
County, IL
80 B
#7403 Tomahawk
County, WI
80 B
#7404 Tool
County, TX
80 B
#7405 Turkey Creek
County, LA
80 B
#7406 Utica
County, NY
80 B
#7407 Valley Center
County, KS
80 B
#7408 Victor
County, NY
80 B
#7409 Vinton
County, IA
80 B
#7410 Warsaw
County, KY
80 B
#7411 Wayne
County, MI
80 B
#7412 Waynesboro
County, TN
80 B
#7413 Weir
County, MS
80 B
#7414 West Blocton
County, AL
80 B
#7415 West Boylston
County, MA
80 B
#7416 West Chazy
County, NY
80 B
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.