City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#6313
Waterford
County, WI
85 B
#6314 Waxahachie
County, TX
85 B
#6315 Wellesley
County, MA
85 B
#6316 West Dover
County, VT
85 B
#6317 Westfield
County, NY
85 B
#6318 Whitfield
County, MS
85 B
#6319 Willow Creek
County, CA
85 B
#6320 Adams
County, MA
84 B
#6321 Albion
County, IL
84 B
#6322 Altamont
County, KS
84 B
#6323 Altamont
County, NY
84 B
#6324 Alto
County, GA
84 B
#6325 Amboy
County, IL
84 B
#6326 Amesbury
County, MA
84 B
#6327 Angels Camp
County, CA
84 B
#6328 Archer
County, FL
84 B
#6329 Arendtsville
County, PA
84 B
#6330 Arlington
County, MA
84 B
#6331 Athens
County, GA
84 B
#6332 Atkins
County, AR
84 B
#6333 Atmore
County, AL
84 B
#6334 Bangor
County, PA
84 B
#6335 Bartow
County, FL
84 B
#6336 Basehor
County, KS
84 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.