City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#2833
Westley
County, CA
96 A
#2834 Westminster
County, TX
96 A
#2835 White House
County, TN
96 A
#2836 White Pigeon
County, MI
96 A
#2837 White River Jct
County, VT
96 A
#2838 Williamsport
County, IN
96 A
#2839 Williamston
County, MI
96 A
#2840 Willsboro
County, NY
96 A
#2841 Windsor
County, NC
96 A
#2842 Winfield Twp
County, NJ
96 A
#2843 Winnsboro
County, SC
96 A
#2844 Wolcott
County, CT
96 A
#2845 Wood River
County, NE
96 A
#2846 Wood Village
County, OR
96 A
#2847 Woodbridge
County, VA
96 A
#2848 Woodbury
County, MN
96 A
#2849 Woodland
County, WA
96 A
#2850 Woodstock
County, GA
96 A
#2851 Woodville
County, OH
96 A
#2852 Woolwich
County, NJ
96 A
#2853 Worley
County, ID
96 A
#2854 Wylie
County, TX
96 A
#2855 Wyomissing
County, PA
96 A
#2856 Yantis
County, TX
96 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.