Wisconsin Citizen Voting-age Population By County in 2018 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2018, the citizen voting-age population for Wisconsin was 4,347,415 and represented 75.24% of the total Wisconsin population.

Among all Wisconsin counties, Milwaukee had the highest citizen voting-age population (677.44K), followed by Dane (394.78K), and Waukesha (303.33K).

In terms of percentages, Iron had the highest percentage of its population being citizens of voting-age (85.48%), followed by Adams (84.06%), and Florence (83.16%).

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

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

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Wisconsin Citizen Voting-age Population By County in 2018
Wisconsin Citizen Voting-age Population By County in 2018
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County Citizen Voting-age Population % of County Population
Milwaukee 677440 71.00
Dane 394780 74.51
Waukesha 303330 76.05
Brown 188265 72.47
Racine 144850 74.13
Outagamie 137355 74.34
Winnebago 132075 77.72
Kenosha 123950 73.64
Rock 119635 73.95
Washington 103060 76.61
Marathon 102095 75.48
La Crosse 93330 79.19
Sheboygan 86875 75.41
Eau Claire 80345 78.01
Fond du Lac 78020 76.26
Walworth 77350 75.09
Dodge 68410 77.94
Ozaukee 67600 76.57
St. Croix 64830 73.74
Jefferson 64560 76.27
Manitowoc 61795 77.82
Wood 56565 77.19
Portage 55280 78.30
Chippewa 48770 76.64
Sauk 48000 75.48
Columbia 43855 77.00
Grant 40685 78.50
Waupaca 40165 78.07
Calumet 37225 74.74
Barron 35020 77.39
Dunn 34940 78.52
Douglas 34220 78.85
Polk 33860 78.11
Monroe 33425 73.46
Marinette 32505 80.19
Pierce 32480 78.07
Shawano 31895 77.77
Oconto 29670 79.00
Oneida 29100 82.33
Green 28130 76.31
Clark 23760 68.89
Door 22585 82.31
Lincoln 22445 80.59
Vernon 22405 73.42
Trempealeau 21425 72.78
Juneau 20890 79.07
Waushara 19215 79.68
Iowa 17960 76.04
Vilas 17915 82.96
Adams 16875 84.06
Jackson 15745 76.79
Kewaunee 15630 76.77
Taylor 15305 75.19
Langlade 15235 79.49
Green Lake 14135 75.37
Richland 13455 76.71
Sawyer 13070 79.84
Crawford 12860 78.94
Washburn 12610 80.37
Burnett 12475 81.75
Lafayette 12340 73.74
Bayfield 12245 81.69
Ashland 12125 77.18
Marquette 12060 79.32
Rusk 11195 78.92
Price 10990 81.47
Buffalo 10315 78.35
Forest 7165 79.44
Pepin 5665 78.03
Iron 4885 85.48
Florence 3605 83.16
Menominee 3075 67.14