Wisconsin Voting-age Population By County in 2021 (ACS-5Yrs)

Updated on February 28, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the voting-age population of Wisconsin was 4.58M which was 77.98% of the total Wisconsin population. Among all Wisconsin counties, Milwaukee had the highest voting-age population (712.11K), followed by Dane (442.10K), and Waukesha (317.88K).

On the other hand, the counties with the least voting-age population were: Menominee (2.92K), Florence (3.81K), and Iron (5.15K).

The chart and table below shows the voting-age population of each county and the percentage of each county's population that are of voting-age.

You can see similar information for other states and by state for the United States.

Wisconsin Voting-age Population By County in 2021
Wisconsin Voting-age Population By County in 2021
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County Voting-age Population % of County Population
Adams 17517 85.43
Ashland 12506 78.15
Barron 36398 78.23
Bayfield 13283 82.86
Brown 203742 76.20
Buffalo 10588 79.53
Burnett 13503 82.56
Calumet 39831 76.41
Chippewa 51321 77.90
Clark 24307 70.14
Columbia 45814 78.69
Crawford 12890 79.73
Dane 442096 79.59
Dodge 71509 80.10
Door 24719 83.19
Douglas 35320 80.21
Dunn 36357 80.34
Eau Claire 83697 79.56
Florence 3811 83.91
Fond du Lac 81570 78.52
Forest 7372 80.27
Grant 41232 78.97
Green 28840 77.74
Green Lake 14784 77.85
Iowa 18358 77.41
Iron 5145 84.71
Jackson 16376 77.97
Jefferson 66980 78.98
Juneau 21212 79.76
Kenosha 130384 77.27
Kewaunee 16203 78.90
La Crosse 96358 80.10
Lafayette 12596 75.60
Langlade 15638 80.32
Lincoln 23139 81.54
Manitowoc 64258 79.23
Marathon 105959 77.01
Marinette 33714 80.81
Marquette 12500 80.57
Menominee 2921 67.65
Milwaukee 712110 75.83
Monroe 34371 74.57
Oconto 30902 79.87
Oneida 30905 82.48
Outagamie 144865 76.40
Ozaukee 71489 78.53
Pepin 5773 78.78
Pierce 33480 79.33
Polk 35485 79.20
Portage 56786 80.69
Price 11460 81.84
Racine 151534 76.77
Richland 13569 78.19
Rock 125561 76.79
Rusk 11253 79.35
St. Croix 69593 75.24
Sauk 50407 77.04
Sawyer 14392 80.80
Shawano 32071 78.54
Sheboygan 91443 77.81
Taylor 15263 76.47
Trempealeau 22786 74.70
Vernon 22606 73.59
Vilas 18893 82.82
Walworth 84136 79.42
Washburn 13441 81.16
Washington 106491 78.13
Waukesha 317879 78.42
Waupaca 41113 79.42
Waushara 20020 81.62
Winnebago 135961 79.37
Wood 57931 78.17