# Counties in Wisconsin by population under 18, 2025

All 72 values come from U.S. Census Bureau for 2025, so the places are comparable.

- Indicator id: `population_0_17_share`
- Unit: %
- Definition: Residents aged 0 to 17 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.
- Source: U.S. Census Bureau, Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (https://www.census.gov/programs-surveys/popest/data/data-sets.html)
- Retrieved: 2026-10-12
- Citation: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/population-under-18/wisconsin-counties

| Rank | Place | % |
|---:|---|---:|
| 1 | Menominee County | 31 |
| 2 | Clark County | 29.2 |
| 3 | Vernon County | 25.6 |
| 4 | Lafayette County | 25.5 |
| 5 | Monroe County | 24.9 |
| 6 | Trempealeau County | 24.6 |
| 7 | Taylor County | 22.9 |
| 8 | Milwaukee County | 22.7 |
| 9 | St. Croix County | 22.5 |
| 10 | Outagamie County | 22 |
| 11 | Brown County | 21.8 |
| 12 | Pepin County | 21.7 |
| 13 | Racine County | 21.7 |
| 14 | Marathon County | 21.6 |
| 15 | Rock County | 21.6 |
| 16 | Sauk County | 21.3 |
| 17 | Grant County | 20.9 |
| 18 | Shawano County | 20.9 |
| 19 | Calumet County | 20.8 |
| 20 | Jackson County | 20.8 |
| 21 | Wood County | 20.6 |
| 22 | Iowa County | 20.6 |
| 23 | Green County | 20.6 |
| 24 | Chippewa County | 20.5 |
| 25 | Green Lake County | 20.5 |
| 26 | Richland County | 20.5 |
| 27 | Kenosha County | 20.5 |
| 28 | Forest County | 20.4 |
| 29 | Sheboygan County | 20.4 |
| 30 | Fond du Lac County | 20.4 |
| 31 | Waukesha County | 20.3 |
| 32 | Kewaunee County | 20.3 |
| 33 | Columbia County | 20.2 |
| 34 | Ozaukee County | 20.1 |
| 35 | Washington County | 20.1 |
| 36 | Barron County | 19.9 |
| 37 | Ashland County | 19.7 |
| 38 | Waupaca County | 19.6 |
| 39 | Winnebago County | 19.6 |
| 40 | Pierce County | 19.5 |
| 41 | Buffalo County | 19.4 |
| 42 | Rusk County | 19.4 |
| 43 | Manitowoc County | 19.4 |
| 44 | Crawford County | 19.3 |
| 45 | Dunn County | 19.2 |
| 46 | Oconto County | 19.2 |
| 47 | Polk County | 19.1 |
| 48 | Eau Claire County | 19 |
| 49 | Langlade County | 18.7 |
| 50 | Jefferson County | 18.7 |
| 51 | Dane County | 18.6 |
| 52 | Dodge County | 18.5 |
| 53 | Juneau County | 18.4 |
| 54 | La Crosse County | 18.4 |
| 55 | Marquette County | 18.3 |
| 56 | Walworth County | 18.2 |
| 57 | Douglas County | 18.1 |
| 58 | Marinette County | 18.1 |
| 59 | Portage County | 18 |
| 60 | Lincoln County | 17.7 |
| 61 | Waushara County | 17.2 |
| 62 | Sawyer County | 16.6 |
| 63 | Washburn County | 16.4 |
| 64 | Price County | 16.1 |
| 65 | Bayfield County | 15.7 |
| 66 | Oneida County | 15.6 |
| 67 | Burnett County | 14.9 |
| 68 | Vilas County | 14.9 |
| 69 | Door County | 14.6 |
| 70 | Iron County | 14.1 |
| 71 | Florence County | 13.1 |
| 72 | Adams County | 12.5 |