Ranking of Wisconsin Counties By Total Voting-age Population (18yrs and over) from Census 2020
Updated on August 22, 2023.
According to the data from the US 2020 Census, as at April 2020, among all the counties in Wisconsin, Milwaukee County had the highest voting-age population (18 years and over) (720.45K), followed by Dane County (448.41K), and Waukesha County (318.19K).
The chart below shows the top 10 counties with high voting-age population, and the table below shows the ranking of all Wisconsin counties based on voting-age population.
You can also see the ranking of counties by population for other states as well as for the whole United States.
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Related Topics: Wisconsin Census 2020 Topic List.
Data Source: US Census Bureau, 2020 Census.
Ranking of Wisconsin Counties By Total Voting-age Population from Census 2020
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| Rank | County | Voting-age Population |
|---|---|---|
| 1 | Milwaukee County | 720446 |
| 2 | Dane County | 448406 |
| 3 | Waukesha County | 318193 |
| 4 | Brown County | 206130 |
| 5 | Racine County | 153051 |
| 6 | Outagamie County | 146186 |
| 7 | Winnebago County | 136202 |
| 8 | Kenosha County | 131452 |
| 9 | Rock County | 126282 |
| 10 | Washington County | 107030 |
| 11 | Marathon County | 106877 |
| 12 | La Crosse County | 96611 |
| 13 | Sheboygan County | 92434 |
| 14 | Walworth County | 84970 |
| 15 | Eau Claire County | 83793 |
| 16 | Fond du Lac County | 82059 |
| 17 | Ozaukee County | 71843 |
| 18 | Dodge County | 71608 |
| 19 | St. Croix County | 70347 |
| 20 | Jefferson County | 66349 |
| 21 | Manitowoc County | 64596 |
| 22 | Wood County | 58544 |
| 23 | Portage County | 56525 |
| 24 | Chippewa County | 51536 |
| 25 | Sauk County | 51197 |
| 26 | Columbia County | 46137 |
| 27 | Waupaca County | 41368 |
| 28 | Grant County | 40847 |
| 29 | Calumet County | 39712 |
| 30 | Barron County | 36847 |
| 31 | Dunn County | 36191 |
| 32 | Douglas County | 35640 |
| 33 | Polk County | 35567 |
| 34 | Monroe County | 34674 |
| 35 | Marinette County | 33918 |
| 36 | Pierce County | 33381 |
| 37 | Shawano County | 32157 |
| 38 | Oneida County | 31461 |
| 39 | Oconto County | 31009 |
| 40 | Green County | 28864 |
| 41 | Door County | 25305 |
| 42 | Clark County | 24688 |
| 43 | Trempealeau County | 23150 |
| 44 | Lincoln County | 23017 |
| 45 | Vernon County | 22734 |
| 46 | Juneau County | 21387 |
| 47 | Waushara County | 20060 |
| 48 | Vilas County | 19453 |
| 49 | Iowa County | 18441 |
| 50 | Adams County | 17644 |
| 51 | Jackson County | 16416 |
| 52 | Kewaunee County | 16113 |
| 53 | Langlade County | 15647 |
| 54 | Taylor County | 15126 |
| 55 | Green Lake County | 15013 |
| 56 | Sawyer County | 14724 |
| 57 | Burnett County | 13642 |
| 58 | Washburn County | 13612 |
| 59 | Bayfield County | 13450 |
| 60 | Richland County | 13369 |
| 61 | Crawford County | 12817 |
| 62 | Ashland County | 12586 |
| 63 | Marquette County | 12550 |
| 64 | Lafayette County | 12491 |
| 65 | Price County | 11566 |
| 66 | Rusk County | 11302 |
| 67 | Buffalo County | 10554 |
| 68 | Forest County | 7302 |
| 69 | Pepin County | 5705 |
| 70 | Iron County | 5255 |
| 71 | Florence County | 3848 |
| 72 | Menominee County | 2893 |