City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9457
Alamo
County, TX
56 D
#9458 Algoma
County, MS
56 D
#9459 Arlington
County, GA
56 D
#9460 Athens
County, TX
56 D
#9461 Austin
County, CO
56 D
#9462 Avalon
County, NJ
56 D
#9463 Bartlett
County, IL
56 D
#9464 Belle Chasse
County, LA
56 D
#9465 Blackstone
County, MA
56 D
#9466 Bloomfield
County, KY
56 D
#9467 Boonville
County, MO
56 D
#9468 Bowling Green
County, FL
56 D
#9469 Bridgewater
County, VA
56 D
#9470 Bridgewater
County, MA
56 D
#9471 Brockton
County, MA
56 D
#9472 Buckatunna
County, MS
56 D
#9473 Bushnell
County, IL
56 D
#9474 Chino
County, CA
56 D
#9475 Clio
County, MI
56 D
#9476 Columbus Junction
County, IA
56 D
#9477 Como
County, TX
56 D
#9478 Crandall
County, TX
56 D
#9479 Danese
County, WV
56 D
#9480 Danielsville
County, GA
56 D
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.