City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#97
Brent
County, AL
100 A
#98 Brewster
County, OH
100 A
#99 Bridgeport
County, MI
100 A
#100 Bridgeport
County, NE
100 A
#101 Bridgeport
County, WA
100 A
#102 Bridgman
County, MI
100 A
#103 Brisbane
County, CA
100 A
#104 Bristol
County, WI
100 A
#105 Bristol
County, VA
100 A
#106 Bristol
County, NH
100 A
#107 Bristol
County, IN
100 A
#108 Brodhead
County, WI
100 A
#109 Brookland
County, AR
100 A
#110 Brooklyn
County, IA
100 A
#111 Brooklyn Center
County, MN
100 A
#112 Brookside
County, AL
100 A
#113 Brownstown Twp
County, MI
100 A
#114 Brownsville
County, TN
100 A
#115 Brussels
County, WI
100 A
#116 Buhl
County, AL
100 A
#117 Buhler
County, KS
100 A
#118 Burbank
County, CA
100 A
#119 Burien
County, WA
100 A
#120 Burlington
County, VT
100 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.