WaterQ

City Water Quality Rankings in Wisconsin

269 cities ranked by drinking water quality.

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Popular city water quality comparisons

Algoma, WI vs Baraboo, WI Compare → Bristol, WI vs Brodhead, WI Compare → Brussels, WI vs Cornell, WI Compare → Cumberland, WI vs Durand, WI Compare →

Trending Cities

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#145
Woodville
County, WI
90 A
#146
Chilton
County, WI
89 B
#147
Cleveland
County, WI
89 B
#148
Hayward
County, WI
89 B
#149
Kimberly
County, WI
89 B
#150
Two Rivers
County, WI
89 B
#151
Albany
County, WI
88 B
#152
Balsam Lake
County, WI
88 B
#153
Bangor
County, WI
88 B
#154
Caledonia
County, WI
88 B
#155
Dodgeville
County, WI
88 B
#156
Fitchburg
County, WI
88 B
#157
Germantown
County, WI
88 B
#158
Horicon
County, WI
88 B
#159
Iola
County, WI
88 B
#160
King
County, WI
88 B
#161
Kronenwetter
County, WI
88 B
#162
Marathon City
County, WI
88 B
#163
Mondovi
County, WI
88 B
#164
Monroe
County, WI
88 B
#165
Monticello
County, WI
88 B
#166
Park Falls
County, WI
88 B
#167
Somers
County, WI
88 B
#168
Spencer
County, WI
88 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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