City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9505
Scranton
County, AR
62 C
#9506 Tarentum
County, PA
62 C
#9507 Temple
County, TX
62 C
#9508 Tyrone
County, PA
62 C
#9509 Van Horn
County, TX
62 C
#9510 Ware
County, MA
62 C
#9511 Weatherly
County, PA
62 C
#9512 West Haven
County, UT
62 C
#9513 Williamsburg
County, KS
62 C
#9514 Winfield
County, AL
62 C
#9515 Administrative Contact
County, CO
61 C
#9516 Agra
County, OK
61 C
#9517 Albuquerque
County, NM
61 C
#9518 Boonville
County, IN
61 C
#9519 Brigham City
County, UT
61 C
#9520 Brooksville
County, FL
61 C
#9521 Carlinville
County, IL
61 C
#9522 Cayey
County, PR
61 C
#9523 Crandon
County, WI
61 C
#9524 Crowville
County, LA
61 C
#9525 Douglas
County, AZ
61 C
#9526 Ely
County, NV
61 C
#9527 Evans
County, GA
61 C
#9528 Fajardo
County, PR
61 C
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.