City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#7417
West Liberty
County, IA
80 B
#7418 West Rutland
County, VT
80 B
#7419 West Union
County, OH
80 B
#7420 Westfield
County, PA
80 B
#7421 Westville
County, IL
80 B
#7422 White Settlement
County, TX
80 B
#7423 Whiting
County, IN
80 B
#7424 Wilkinsburg
County, PA
80 B
#7425 Willard
County, OH
80 B
#7426 Winchester
County, MA
80 B
#7427 Altoona
County, WI
79 B
#7428 Amity
County, OR
79 B
#7429 Andover
County, NY
79 B
#7430 Angier
County, NC
79 B
#7431 Antioch
County, IL
79 B
#7432 Ashton
County, ID
79 B
#7433 Astoria
County, OR
79 B
#7434 Avon
County, NY
79 B
#7435 Bakersfield
County, CA
79 B
#7436 Basile
County, LA
79 B
#7437 Blanchard
County, LA
79 B
#7438 Bowdon
County, GA
79 B
#7439 Bristol
County, CT
79 B
#7440 Brooksville
County, MS
79 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.