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

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2021, the citizen population for Wisconsin was 5,716,305 and represented 97.35% of the total Wisconsin population.

Among all Wisconsin counties, Milwaukee had the highest citizen population (890.45K), followed by Dane (527.25K), and Waukesha (395.46K).

In terms of percentages, Florence had the highest percentage of its population being citizens (100.00%), followed by Menominee (99.77%), and Oconto (99.77%).

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

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

You may also be interested in:
Wisconsin Citizen Voting-age Population By County in 2021

Data Source: US Census - ACS 5-Year (CVAP).

See this for other years:

Wisconsin Citizen Population By County in 2021

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County	Citizen Population	% of County Population
Milwaukee	890445	94.82
Dane	527245	94.92
Waukesha	395460	97.57
Brown	257915	96.47
Racine	192360	97.46
Outagamie	186665	98.44
Winnebago	168375	98.29
Kenosha	162130	96.08
Rock	159025	97.25
Marathon	135495	98.47
Washington	134820	98.91
La Crosse	119475	99.32
Sheboygan	114595	97.50
Eau Claire	103805	98.67
Walworth	102895	97.12
Fond du Lac	101645	97.84
St. Croix	91610	99.04
Ozaukee	89425	98.24
Dodge	87855	98.41
Jefferson	83045	97.92
Manitowoc	79970	98.60
Wood	73245	98.84
Portage	68945	97.96
Chippewa	65470	99.39
Sauk	64195	98.11
Columbia	57550	98.85
Grant	51770	99.16
Calumet	51425	98.65
Waupaca	51290	99.07
Barron	45700	98.22
Monroe	45580	98.89
Dunn	44710	98.80
Polk	44585	99.51
Douglas	43460	98.69
Pierce	41770	98.97
Marinette	41500	99.47
Shawano	40620	99.47
Oconto	38600	99.77
Oneida	37295	99.53
Green	36690	98.90
Clark	33945	97.95
Vernon	30515	99.33
Trempealeau	29655	97.21
Door	29280	98.54
Lincoln	28155	99.21
Juneau	26355	99.10
Waushara	24225	98.78
Iowa	23570	99.39
Vilas	22740	99.67
Jackson	20765	98.86
Adams	20325	99.12
Kewaunee	20300	98.86
Taylor	19800	99.20
Langlade	19320	99.23
Green Lake	18835	99.18
Sawyer	17755	99.66
Richland	17155	98.85
Washburn	16460	99.40
Lafayette	16340	98.08
Burnett	16300	99.66
Crawford	16050	99.29
Ashland	15960	99.75
Bayfield	15960	99.56
Marquette	15445	99.55
Rusk	14110	99.51
Price	13850	98.89
Buffalo	13170	98.91
Forest	9160	99.73
Pepin	7265	99.11
Iron	6045	99.51
Florence	4540	100.00
Menominee	4310	99.77