City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#2185
Windsor
County, VT
97 A
#2186 Wood River Junction
County, RI
97 A
#2187 Woonsocket
County, RI
97 A
#2188 Wurtsboro
County, NY
97 A
#2189 Wynantskill
County, NY
97 A
#2190 Yakima
County, WA
97 A
#2191 Zillah
County, WA
97 A
#2192 29 Palms
County, CA
96 A
#2193 Absarokee
County, MT
96 A
#2194 Accomac
County, VA
96 A
#2195 Alexandria
County, AL
96 A
#2196 Algona
County, WA
96 A
#2197 Allendale
County, MI
96 A
#2198 Allons
County, TN
96 A
#2199 Allyn
County, WA
96 A
#2200 Alpharetta
County, GA
96 A
#2201 Altamont
County, TN
96 A
#2202 Altavista
County, VA
96 A
#2203 Altoona
County, AL
96 A
#2204 Amelia
County, VA
96 A
#2205 Anaheim
County, CA
96 A
#2206 Angola
County, LA
96 A
#2207 Anna
County, OH
96 A
#2208 Ansonville
County, NC
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.