City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#7537
Wood Dale
County, IL
79 B
#7538 Woodville
County, MS
79 B
#7539 Youngsville
County, PA
79 B
#7540 Abernathy
County, TX
78 B
#7541 Albany
County, MO
78 B
#7542 Albertville
County, MN
78 B
#7543 Amarillo
County, TX
78 B
#7544 Amery
County, WI
78 B
#7545 Appleton City
County, MO
78 B
#7546 Ashland
County, MS
78 B
#7547 Atlanta
County, GA
78 B
#7548 Aviston
County, IL
78 B
#7549 Ayer
County, MA
78 B
#7550 Azle
County, TX
78 B
#7551 Bainbridge
County, NY
78 B
#7552 Beaver Falls
County, PA
78 B
#7553 Bellbrook
County, OH
78 B
#7554 Bismarck
County, MO
78 B
#7555 Boiling Springs
County, PA
78 B
#7556 Bolton
County, MS
78 B
#7557 Boylston
County, MA
78 B
#7558 Bradenton
County, FL
78 B
#7559 Bradford
County, VT
78 B
#7560 Braintree
County, MA
78 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.