WaterQ

City Water Quality Rankings in Wisconsin

340 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 → Chippewa Falls, WI vs Cumberland, WI Compare → Durand, WI vs Eau Claire, WI Compare →

Trending Cities

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#145
Webster
County, WI
92 A
#146
Weston
County, WI
92 A
#147
Black Earth
County, WI
91 A
#148
Bloomer
County, WI
91 A
#149
Boyceville
County, WI
91 A
#150
Deforest
County, WI
91 A
#151
Germantown
County, WI
91 A
#152
Hudson
County, WI
91 A
#153
Kronenwetter
County, WI
91 A
#154
Marathon City
County, WI
91 A
#155
Mosinee
County, WI
91 A
#156
New Holstein
County, WI
91 A
#157
Oshkosh
County, WI
91 A
#158
Rhinelander
County, WI
91 A
#159
Richland Center
County, WI
91 A
#160
Sheboygan
County, WI
91 A
#161
Stratford
County, WI
91 A
#162
Two Rivers
County, WI
91 A
#163
Union Grove
County, WI
91 A
#164
Woodville
County, WI
91 A
#165
Clear Lake
County, WI
90 A
#166
Fox Lake
County, WI
90 A
#167
Greendale
County, WI
90 A
#168
Hartland
County, WI
90 A

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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