City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#5809
Valley Falls
County, KS
87 B
#5810 Valley Grande
County, AL
87 B
#5811 Vernon
County, NJ
87 B
#5812 Veronon
County, NY
87 B
#5813 Victoria
County, KS
87 B
#5814 Watertown
County, MA
87 B
#5815 Westcliffe
County, CO
87 B
#5816 Winchester
County, TN
87 B
#5817 Winnsboro
County, TX
87 B
#5818 Wolcott
County, IN
87 B
#5819 York
County, PA
87 B
#5820 Aberdeen
County, NC
86 B
#5821 Alexander City
County, AL
86 B
#5822 Annandale
County, MN
86 B
#5823 Arnold Afb
County, TN
86 B
#5824 Ashland
County, NH
86 B
#5825 Ashland City
County, TN
86 B
#5826 Aspen
County, CO
86 B
#5827 Astoria
County, IL
86 B
#5828 Athens
County, OH
86 B
#5829 Atkinson
County, NE
86 B
#5830 Atlantic Highlands
County, NJ
86 B
#5831 Ava
County, IL
86 B
#5832 Bainbridge
County, GA
86 B
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.