City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#1321
Annetta
County, TX
98 A
#1322 Apalachin
County, NY
98 A
#1323 Appalachia
County, VA
98 A
#1324 Appomattox
County, VA
98 A
#1325 Arcadia
County, WI
98 A
#1326 Arlington
County, OH
98 A
#1327 Atco
County, NJ
98 A
#1328 Aurora
County, OH
98 A
#1329 Avila Beach
County, CA
98 A
#1330 Avon
County, OH
98 A
#1331 Axis
County, AL
98 A
#1332 Baker
County, CA
98 A
#1333 Bakewell
County, TN
98 A
#1334 Baldwin Park
County, CA
98 A
#1335 Bar Harbor
County, ME
98 A
#1336 Barnesville
County, GA
98 A
#1337 Basalt
County, CO
98 A
#1338 Bath
County, PA
98 A
#1339 Bay Minette
County, AL
98 A
#1340 Bear Creek
County, AL
98 A
#1341 Beatrice
County, NE
98 A
#1342 Bedford
County, TX
98 A
#1343 Bedford
County, VA
98 A
#1344 Beech Island
County, SC
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.