City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#6337
Batavia
County, OH
84 B
#6338 Bay City
County, OR
84 B
#6339 Bayport
County, MN
84 B
#6340 Bean Station
County, TN
84 B
#6341 Beecher
County, IL
84 B
#6342 Bellmawr
County, NJ
84 B
#6343 Benbrook
County, TX
84 B
#6344 Benson
County, AZ
84 B
#6345 Bentonville
County, AR
84 B
#6346 Big Lake
County, AK
84 B
#6347 Bolinas
County, CA
84 B
#6348 Bowie
County, TX
84 B
#6349 Boyd
County, TX
84 B
#6350 Branson
County, MO
84 B
#6351 Brimley
County, MI
84 B
#6352 Brookhaven
County, MS
84 B
#6353 Butler
County, GA
84 B
#6354 Cadott
County, WI
84 B
#6355 Caledonia
County, MS
84 B
#6356 Califon
County, NJ
84 B
#6357 Calistoga
County, CA
84 B
#6358 Camden
County, OH
84 B
#6359 Canby
County, OR
84 B
#6360 Cannon Falls
County, MN
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.