WaterQ

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.

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