Data / Rankings / Population density / Counties in Wisconsin

Counties in Wisconsin by population density

Milwaukee County had the highest population density of 72 counties in 2022, at 1,473.5 inhabitants per km². Iron County had the lowest, at 3.2 inhabitants per km². The median was 19.5 inhabitants per km² and the figure for Wisconsin was 42.1 inhabitants per km². Source: the U.S. Census Bureau.

Highest1,473.5Milwaukee County
Lowest3.2Iron County
Median19.572 counties
Wisconsin42.1History

Top 40 counties, 2022

CSVChart (SVG)

Milwaukee CountyMilwaukee County: 1,473.5 inhabitants per km²1,473.5Waukesha CountyWaukesha County: 288.6 inhabitants per km²288.6Kenosha CountyKenosha County: 238.4 inhabitants per km²238.4Racine CountyRacine County: 228.3 inhabitants per km²228.3Brown CountyBrown County: 197.1 inhabitants per km²197.1Dane CountyDane County: 184.2 inhabitants per km²184.2Ozaukee CountyOzaukee County: 154.2 inhabitants per km²154.2Winnebago CountyWinnebago County: 151.9 inhabitants per km²151.9Washington CountyWashington County: 123.8 inhabitants per km²123.8Outagamie CountyOutagamie County: 116.6 inhabitants per km²116.6La Crosse CountyLa Crosse County: 102.8 inhabitants per km²102.8Sheboygan CountySheboygan County: 88.9 inhabitants per km²88.9Rock CountyRock County: 88.1 inhabitants per km²88.1Walworth CountyWalworth County: 73.6 inhabitants per km²73.6Eau Claire CountyEau Claire County: 64.7 inhabitants per km²64.7Calumet CountyCalumet County: 64.1 inhabitants per km²64.1Jefferson CountyJefferson County: 59.6 inhabitants per km²59.6Fond du Lac CountyFond du Lac County: 55.9 inhabitants per km²55.9Manitowoc CountyManitowoc County: 53.3 inhabitants per km²53.3St. Croix CountySt. Croix County: 51.4 inhabitants per km²51.4Dodge CountyDodge County: 39.1 inhabitants per km²39.1Wood CountyWood County: 36 inhabitants per km²36Marathon CountyMarathon County: 34.5 inhabitants per km²34.5Portage CountyPortage County: 34.1 inhabitants per km²34.1Sauk CountySauk County: 30.6 inhabitants per km²30.6Columbia CountyColumbia County: 29.4 inhabitants per km²29.4Pierce CountyPierce County: 28.6 inhabitants per km²28.6Waupaca CountyWaupaca County: 26.7 inhabitants per km²26.7Chippewa CountyChippewa County: 25.6 inhabitants per km²25.6Door CountyDoor County: 24.5 inhabitants per km²24.5Green CountyGreen County: 24.4 inhabitants per km²24.4Kewaunee CountyKewaunee County: 23.3 inhabitants per km²23.3Green Lake CountyGreen Lake County: 21.2 inhabitants per km²21.2Barron CountyBarron County: 20.9 inhabitants per km²20.9Dunn CountyDunn County: 20.7 inhabitants per km²20.7Monroe CountyMonroe County: 19.7 inhabitants per km²19.7Polk CountyPolk County: 19.3 inhabitants per km²19.3Shawano CountyShawano County: 17.7 inhabitants per km²17.7Grant CountyGrant County: 17.3 inhabitants per km²17.3Trempealeau CountyTrempealeau County: 16.3 inhabitants per km²16.3
inhabitants per km². Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2022
inhabitants per km²		Change on 2021
1Milwaukee County1,473.5-0.3%
2Waukesha County288.6+0.4%
3Kenosha County238.4-0.4%
4Racine County228.3-0.1%
5Brown County197.1+0.6%
6Dane County184.2+1.6%
7Ozaukee County154.2+0.5%
8Winnebago County151.9+0.2%
9Washington County123.8+0.5%
10Outagamie County116.6+0.6%
11La Crosse County102.8+0.8%
12Sheboygan County88.9+0.1%
13Rock County88.1-0.1%
14Walworth County73.6+0.5%
15Eau Claire County64.7+0.8%
16Calumet County64.1+0.4%
17Jefferson County59.6+0.1%
18Fond du Lac County55.9-0%
19Manitowoc County53.3-0.2%
20St. Croix County51.4+1.2%
21Dodge County39.1-0.1%
22Wood County36-0.2%
23Marathon County34.5+0.3%
24Portage County34.1+1.9%
25Sauk County30.6+0.4%
26Columbia County29.4-0.1%
27Pierce County28.6+2.3%
28Waupaca County26.7-0.4%
29Chippewa County25.6+0.3%
30Door County24.5+0.6%
31Green County24.4-0.5%
32Kewaunee County23.3+0.6%
33Green Lake County21.2-0.1%
34Barron County20.9+0.2%
35Dunn County20.7+2.5%
36Monroe County19.7-0.3%
37Polk County19.3+0.3%
38Shawano County17.7+0.4%
39Grant County17.3+0.1%
40Trempealeau County16.3+0.6%
41Waushara County15.4+0.7%
42Oconto County15.3+0.6%
43Vernon County15.2+0.5%
44Juneau County13.5-0.1%
45Marquette County13.4+0.1%
46Oneida County13.2-0.2%
47Douglas County13.1+0.5%
48Adams County12.7+2.1%
49Lincoln County12.5-0.5%
50Pepin County12.3+0.3%
51Iowa County12.1+0.6%
52Marinette County11.6+0.3%
53Richland County11.3-0.2%
54Clark County11.1+0.1%
55Crawford County10.8-0.4%
56Vilas County10.7+1%
57Lafayette County10.3+0.7%
58Langlade County8.7+0.2%
59Washburn County8.2+0.9%
60Jackson County8.2-0%
61Burnett County8+1.3%
62Taylor County7.9+0.1%
63Buffalo County7.7+0.4%
64Rusk County6+0.4%
65Ashland County5.9+0.1%
66Sawyer County5.7+1.8%
67Menominee County4.5-2.4%
68Price County4.4+0.8%
69Bayfield County4.4+2%
70Florence County3.7+2.5%
71Forest County3.6-0.8%
72Iron County3.2+0.7%

Other periods

About this ranking

Resident population divided by land area in km². World Bank figures use mid-year population and land area excluding inland water.

United States: Census Bureau population estimates for 1 July divided by land area (water excluded) from the latest Census Gazetteer files. US tables often give people per square mile; multiply persons per km² by 2.59 to compare.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-09.

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Rank Counties in Wisconsin by population density using official data, and cite the source.
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Questions

Which county has the highest population density?

Milwaukee County, with 1,473.5 inhabitants per km² in 2022, according to the U.S. Census Bureau.

Which county has the lowest population density?

Iron County, with 3.2 inhabitants per km² in 2022.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². Retrieved 2026-10-09.

Population density: other rankings

Counties in Wisconsin: more rankings