City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#1369
Bridgewater
County, VA
98 A
#1370 Brighton
County, MI
98 A
#1371 Brighton
County, TN
98 A
#1372 Broken Bow
County, NE
98 A
#1373 Bronson
County, MI
98 A
#1374 Brooklyn
County, MI
98 A
#1375 Brookshire
County, TX
98 A
#1376 Buckeye Lake
County, OH
98 A
#1377 Buffalo
County, NY
98 A
#1378 Buford
County, GA
98 A
#1379 Burlington
County, KS
98 A
#1380 Burlington
County, ND
98 A
#1381 Burlington
County, WI
98 A
#1382 Burns
County, OR
98 A
#1383 Burton
County, OH
98 A
#1384 Caldwell
County, TX
98 A
#1385 Calhoun
County, TN
98 A
#1386 Camden
County, NY
98 A
#1387 Camden
County, SC
98 A
#1388 Campbell
County, TX
98 A
#1389 Canal Winchester
County, OH
98 A
#1390 Canby
County, MN
98 A
#1391 Canfield
County, OH
98 A
#1392 Carlsborg
County, WA
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.