City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#2785
Tallmadge
County, OH
96 A
#2786 Tarkio
County, MO
96 A
#2787 The Colony
County, TX
96 A
#2788 The Woodlands
County, TX
96 A
#2789 Thermopolis
County, WY
96 A
#2790 Thorndale
County, TX
96 A
#2791 Tigard
County, OR
96 A
#2792 Tilton
County, NH
96 A
#2793 Tontitown
County, AR
96 A
#2794 Toppenish
County, WA
96 A
#2795 Toronto
County, OH
96 A
#2796 Tracy
County, CA
96 A
#2797 Trinidad
County, CA
96 A
#2798 Troy
County, TN
96 A
#2799 Tullahoma
County, TN
96 A
#2800 Twin Bridges
County, CA
96 A
#2801 Twin Peaks
County, CA
96 A
#2802 Ucon
County, ID
96 A
#2803 Ukiah
County, CA
96 A
#2804 Union City
County, IN
96 A
#2805 Union Point
County, GA
96 A
#2806 Valentine
County, NE
96 A
#2807 Valparaiso
County, FL
96 A
#2808 Vernon
County, AL
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.