City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9769
Edmond
County, OK
57 D
#9770 Eustace
County, TX
57 D
#9771 Fairfield
County, TX
57 D
#9772 Flatonia
County, TX
57 D
#9773 Flora
County, MS
57 D
#9774 Florence
County, MS
57 D
#9775 Franklin
County, ID
57 D
#9776 Gallman
County, MS
57 D
#9777 Garciasville
County, TX
57 D
#9778 Gordonville
County, TX
57 D
#9779 Hattiesburg
County, MS
57 D
#9780 Hialeah
County, FL
57 D
#9781 Hubbard
County, TX
57 D
#9782 Kaysville
County, UT
57 D
#9783 Kinnelon
County, NJ
57 D
#9784 Lexington
County, MS
57 D
#9785 Live Oak
County, FL
57 D
#9786 Mayo
County, FL
57 D
#9787 Mesa
County, AZ
57 D
#9788 Midland
County, TX
57 D
#9789 North Vernon
County, IN
57 D
#9790 Patton
County, PA
57 D
#9791 Pearl
County, MS
57 D
#9792 Pine Valley
County, CA
57 D
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.