City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#3697
Bradford
County, AR
93 A
#3698 Branson West
County, MO
93 A
#3699 Breaux Bridge
County, LA
93 A
#3700 Brewster
County, WA
93 A
#3701 Brielle
County, NJ
93 A
#3702 Britton
County, SD
93 A
#3703 Brocton
County, NY
93 A
#3704 Brookville
County, IN
93 A
#3705 Buckley
County, WA
93 A
#3706 Canton
County, OH
93 A
#3707 Carson
County, WA
93 A
#3708 Cavalier
County, ND
93 A
#3709 Cave Junction
County, OR
93 A
#3710 Central Point
County, OR
93 A
#3711 Centreville
County, MI
93 A
#3712 Charlottesville
County, VA
93 A
#3713 Cherry Hill
County, NJ
93 A
#3714 Chester
County, NJ
93 A
#3715 China Spring
County, TX
93 A
#3716 College Park
County, GA
93 A
#3717 Columbia City
County, OR
93 A
#3718 Columbiana
County, OH
93 A
#3719 Cottageville
County, WV
93 A
#3720 Crothersville
County, IN
93 A
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.