City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9241
Salisbury
County, NC
65 C
#9242 Santo
County, TX
65 C
#9243 Sicily Island
County, LA
65 C
#9244 Slidell
County, LA
65 C
#9245 South Grafton
County, MA
65 C
#9246 Spanish Fork
County, UT
65 C
#9247 Unity Village
County, MO
65 C
#9248 Wheeling
County, WV
65 C
#9249 Whitewright
County, TX
65 C
#9250 Wilmette
County, IL
65 C
#9251 Woodridge
County, IL
65 C
#9252 Woodstock
County, VA
65 C
#9253 Zion
County, IL
65 C
#9254 Anniston
County, MO
64 C
#9255 Asheville
County, NC
64 C
#9256 Athens
County, TX
64 C
#9257 Atwood
County, IL
64 C
#9258 Baldwinville
County, MA
64 C
#9259 Beaver
County, PA
64 C
#9260 Belmont
County, NY
64 C
#9261 Bridgeview
County, IL
64 C
#9262 Buffalo
County, IA
64 C
#9263 Bunnell
County, FL
64 C
#9264 Cascade
County, IA
64 C
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.