City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9697
Elmore City
County, OK
58 D
#9698 Eloy
County, AZ
58 D
#9699 Fairhope
County, AL
58 D
#9700 Fielding
County, UT
58 D
#9701 Germantown
County, TN
58 D
#9702 Grafton
County, WI
58 D
#9703 Greenup
County, KY
58 D
#9704 Hannibal
County, MO
58 D
#9705 Hardwood Heights
County, IL
58 D
#9706 Hart
County, MI
58 D
#9707 Henderson
County, KY
58 D
#9708 Hidalgo
County, TX
58 D
#9709 Homer
County, LA
58 D
#9710 Horseshoe Bay
County, TX
58 D
#9711 Huntsville
County, TX
58 D
#9712 Jackson'S Gap
County, AL
58 D
#9713 Julesburg
County, CO
58 D
#9714 Kapalua
County, HI
58 D
#9715 Kinsley
County, KS
58 D
#9716 Luthersville
County, GA
58 D
#9717 Marble Falls
County, TX
58 D
#9718 Marshall
County, TX
58 D
#9719 Maxton
County, NC
58 D
#9720 Millington
County, TN
58 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.