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 →

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#1
Algoma
County, WI
100 A
#2
Baraboo
County, WI
100 A
#3
Bristol
County, WI
100 A
#4
Brodhead
County, WI
100 A
#5
Brussels
County, WI
100 A
#6
Cornell
County, WI
100 A
#7
Cumberland
County, WI
100 A
#8
Durand
County, WI
100 A
#9
Elkhart Lake
County, WI
100 A
#10
Fredonia
County, WI
100 A
#11
Greenville
County, WI
100 A
#12
Hartford
County, WI
100 A
#13
Keshena
County, WI
100 A
#14
Kewaskum
County, WI
100 A
#15
Kohler
County, WI
100 A
#16
La Crosse
County, WI
100 A
#17
Lake Geneva
County, WI
100 A
#18
Marion
County, WI
100 A
#19
Merton
County, WI
100 A
#20
Muskego
County, WI
100 A
#21
Plover
County, WI
100 A
#22
Pulaski
County, WI
100 A
#23
Richfield
County, WI
100 A
#24
Sturgeon Bay
County, WI
100 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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