City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#3889
Aurora
County, OR
92 A
#3890 Austin
County, MN
92 A
#3891 Bagley
County, MN
92 A
#3892 Bainbridge
County, PA
92 A
#3893 Baker
County, MT
92 A
#3894 Bayfield
County, CO
92 A
#3895 Beattie
County, KS
92 A
#3896 Beaverton
County, MI
92 A
#3897 Bedford
County, KY
92 A
#3898 Bel Aire
County, KS
92 A
#3899 Belgrade
County, MT
92 A
#3900 Benton
County, KS
92 A
#3901 Benton
County, PA
92 A
#3902 Bergman
County, AR
92 A
#3903 Berne
County, IN
92 A
#3904 Berryville
County, AR
92 A
#3905 Bethalto
County, IL
92 A
#3906 Big Bear Lake
County, CA
92 A
#3907 Big Stone Gap
County, VA
92 A
#3908 Billingsley
County, AL
92 A
#3909 Bishop
County, TX
92 A
#3910 Blades
County, DE
92 A
#3911 Blaine
County, MN
92 A
#3912 Blue Mountain
County, MS
92 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.