City Water Quality Rankings in Wisconsin
340 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#217
Fox Point
County, WI
86 B
#218 Genoa City
County, WI
86 B
#219 Holmen
County, WI
86 B
#220 Hurley
County, WI
86 B
#221 Loyal
County, WI
86 B
#222 Milton
County, WI
86 B
#223 New Richmond
County, WI
86 B
#224 Orfordville
County, WI
86 B
#225 Osseo
County, WI
86 B
#226 Oxford
County, WI
86 B
#227 Watertown
County, WI
86 B
#228 Windsor
County, WI
86 B
#229 Wisconsin Dells
County, WI
86 B
#230 Wrightstown
County, WI
86 B
#231 Cottage Grove
County, WI
85 B
#232 Cuba City
County, WI
85 B
#233 Dousman
County, WI
85 B
#234 Fall River
County, WI
85 B
#235 Mauston
County, WI
85 B
#236 Verona
County, WI
85 B
#237 Waterford
County, WI
85 B
#238 Cadott
County, WI
84 B
#239 Colfax
County, WI
84 B
#240 Crivitz
County, WI
84 B
Frequently Asked Questions
How are city water quality rankings calculated in Wisconsin?
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 cities in Wisconsin?
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.