City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#1345
Bellflower
County, CA
98 A
#1346 Belvue
County, KS
98 A
#1347 Berlin
County, VT
98 A
#1348 Bexley
County, OH
98 A
#1349 Big Sandy
County, TN
98 A
#1350 Bigelow
County, AR
98 A
#1351 Black Creek
County, WI
98 A
#1352 Black Diamond
County, WA
98 A
#1353 Blacksburg
County, VA
98 A
#1354 Blackshear
County, GA
98 A
#1355 Blooming Prairie
County, MN
98 A
#1356 Bloomington
County, MN
98 A
#1357 Blountsville
County, AL
98 A
#1358 Blue Ridge
County, GA
98 A
#1359 Boron
County, CA
98 A
#1360 Borrego Springs
County, CA
98 A
#1361 Boswell
County, PA
98 A
#1362 Bovina
County, TX
98 A
#1363 Bradford
County, TN
98 A
#1364 Brandenburg
County, KY
98 A
#1365 Brazoria
County, TX
98 A
#1366 Breckenridge
County, MI
98 A
#1367 Brentwood
County, TN
98 A
#1368 Brewer
County, ME
98 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.