City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#1465
Durham
County, NH
98 A
#1466 Dyer
County, IN
98 A
#1467 Eagan
County, MN
98 A
#1468 Eagle
County, NE
98 A
#1469 East Jordan
County, MI
98 A
#1470 East Moline
County, IL
98 A
#1471 East Palo Alto
County, CA
98 A
#1472 East Wenatchee
County, WA
98 A
#1473 Eastham
County, MA
98 A
#1474 Easton
County, MD
98 A
#1475 Echo
County, LA
98 A
#1476 Ecorse
County, MI
98 A
#1477 Edgerton
County, OH
98 A
#1478 Egan
County, SD
98 A
#1479 Eight Mile
County, AL
98 A
#1480 El Campo
County, TX
98 A
#1481 El Centro
County, CA
98 A
#1482 El Lago
County, TX
98 A
#1483 Elbow Lake
County, MN
98 A
#1484 Ellicottville
County, NY
98 A
#1485 Elmira
County, CA
98 A
#1486 Englewood
County, OH
98 A
#1487 Ephrata
County, WA
98 A
#1488 Esparto
County, CA
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.