City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#11161
Benavides
County, TX
0 F
#11162 Bessemer City
County, NC
0 F
#11163 Bethel
County, AK
0 F
#11164 Big Bend
County, WV
0 F
#11165 Big Spring
County, TX
0 F
#11166 Bivins
County, TX
0 F
#11167 Blackwell
County, OK
0 F
#11168 Blair
County, OK
0 F
#11169 Blanco
County, TX
0 F
#11170 Blanding
County, UT
0 F
#11171 Block Island
County, RI
0 F
#11172 Bloomfield
County, IA
0 F
#11173 Blooming Grove
County, NY
0 F
#11174 Bogalusa
County, LA
0 F
#11175 Boise City
County, OK
0 F
#11176 Boley
County, OK
0 F
#11177 Boone
County, IA
0 F
#11178 Boonville
County, NC
0 F
#11179 Bowling Green
County, VA
0 F
#11180 Braddock
County, NJ
0 F
#11181 Bradford
County, PA
0 F
#11182 Brady
County, TX
0 F
#11183 Bridgeton
County, NJ
0 F
#11184 Bristow
County, OK
0 F
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.