City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#4489
Ellijay
County, GA
91 A
#4490 Elverson
County, PA
91 A
#4491 Eminence
County, KY
91 A
#4492 Eudora
County, KS
91 A
#4493 Evans
County, CO
91 A
#4494 Fairfield
County, OH
91 A
#4495 Farmington
County, UT
91 A
#4496 Flanagan
County, IL
91 A
#4497 Forest Falls
County, CA
91 A
#4498 Forestville
County, CA
91 A
#4499 Fort Wayne
County, IN
91 A
#4500 Fortville
County, IN
91 A
#4501 Freeport
County, TX
91 A
#4502 Garden City
County, GA
91 A
#4503 Germantown
County, WI
91 A
#4504 Glenmora
County, LA
91 A
#4505 Glidden
County, IA
91 A
#4506 Goodman
County, MO
91 A
#4507 Grand Isle
County, VT
91 A
#4508 Grand Terrace
County, CA
91 A
#4509 Greencastle
County, IN
91 A
#4510 Greenville
County, IN
91 A
#4511 Griffin
County, GA
91 A
#4512 Halifax
County, NC
91 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.