Wisconsin Population By County (2018)
Created on February 26, 2020.
Data Updated on May 9, 2021.

According to the US Census Bureau population estimates, there were 5,807,406 people living in Wisconsin in 2018. Milwaukee County was the most populated county with 946,969 residents, followed by Dane County with 541,948 residents, and Waukesha County with 402,522 residents. Florence County with a population of 4,294 was the least populated county in Wisconsin in 2018.

Use the map below to interactively explore the population of each county in Wisconsin in 2018. The data can also be explored further by sorting and filtering with the table below.

Hover/Click on the counties to see the values.
Wisconsin Population By County (2018)
Table of Wisconsin Population By County (2018)
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County Population % of State Population
Adams 20,341 0.35%
Ashland 15,587 0.27%
Barron 45,150 0.78%
Bayfield 15,026 0.26%
Brown 263,165 4.53%
Buffalo 13,114 0.23%
Burnett 15,374 0.27%
Calumet 50,132 0.86%
Chippewa 64,109 1.10%
Clark 34,705 0.60%
Columbia 57,333 0.99%
Crawford 16,265 0.28%
Dane 541,948 9.33%
Dodge 87,833 1.51%
Door 27,589 0.48%
Douglas 43,143 0.74%
Dunn 45,091 0.78%
Eau Claire 104,355 1.80%
Florence 4,294 0.07%
Fond du Lac 103,001 1.77%
Forest 8,977 0.16%
Grant 51,444 0.89%
Green 36,924 0.64%
Green Lake 18,849 0.33%
Iowa 23,722 0.41%
Iron 5,687 0.10%
Jackson 20,472 0.35%
Jefferson 85,049 1.46%
Juneau 26,593 0.46%
Kenosha 168,926 2.91%
Kewaunee 20,395 0.35%
La Crosse 118,041 2.03%
Lafayette 16,672 0.29%
Langlade 19,236 0.33%
Lincoln 27,673 0.48%
Manitowoc 79,015 1.36%
Marathon 135,421 2.33%
Marinette 40,402 0.70%
Marquette 15,418 0.27%
Menominee 4,595 0.08%
Milwaukee 946,969 16.31%
Monroe 46,141 0.80%
Oconto 37,824 0.65%
Oneida 35,444 0.61%
Outagamie 186,879 3.22%
Ozaukee 89,059 1.53%
Pepin 7,304 0.13%
Pierce 42,592 0.73%
Polk 43,568 0.75%
Portage 70,850 1.22%
Price 13,357 0.23%
Racine 196,357 3.38%
Richland 17,397 0.30%
Rock 162,874 2.81%
Rusk 14,110 0.24%
St. Croix 89,688 1.54%
Sauk 64,318 1.11%
Sawyer 16,464 0.28%
Shawano 40,771 0.70%
Sheboygan 115,233 1.98%
Taylor 20,364 0.35%
Trempealeau 29,494 0.51%
Vernon 30,772 0.53%
Vilas 21,928 0.38%
Walworth 103,550 1.78%
Washburn 15,837 0.27%
Washington 135,445 2.33%
Waukesha 402,522 6.93%
Waupaca 51,130 0.88%
Waushara 24,267 0.42%
Winnebago 170,878 2.94%
Wood 72,954 1.26%