Data / Population under 18 / Green County

Population under 18 in Green County

Population under 18 in Green County was 20.6% in 2025, according to the U.S. Census Bureau. That is down 0.4 pts from 2024. That is the 23rd highest of 72 counties in 2025.

202520.6%
Change on 2024-0.4 pts
Rank23rd of 72Counties in Wisconsin ranked
Series high24.32010
Series low20.62025

Next release: Friday, 25 June 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

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Population under 18 in Green County, 2010 to 2025

2021222324252010201320162019202220252010: 24.3 %2011: 23.9 %2012: 23.6 %2013: 23.4 %2014: 23.1 %2015: 22.9 %2016: 22.8 %2017: 22.6 %2018: 22.4 %2019: 22.3 %2020: 21.9 %2021: 21.7 %2022: 21.4 %2023: 21.2 %2024: 20.9 %2025: 20.6 %2021222324252010201620252010: 24.3 %2011: 23.9 %2012: 23.6 %2013: 23.4 %2014: 23.1 %2015: 22.9 %2016: 22.8 %2017: 22.6 %2018: 22.4 %2019: 22.3 %2020: 21.9 %2021: 21.7 %2022: 21.4 %2023: 21.2 %2024: 20.9 %2025: 20.6 %
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12, published 2026-06-25.
All 16 values
Period%
202520.6
202420.9
202321.2
202221.4
202121.7
202021.9
201922.3
201822.4
201722.6
201622.8
201522.9
201423.1
201323.4
201223.6
201123.9
201024.3

Compared with Wisconsin and United States

Place2025
Green County20.6
Wisconsin20.5
United States21.1

Green County compared with nearby places

Adams County: 12.5 %Ashland County: 19.7 %Barron County: 19.9 %Bayfield County: 15.7 %Brown County: 21.8 %Buffalo County: 19.4 %Burnett County: 14.9 %Calumet County: 20.8 %Chippewa County: 20.5 %Clark County: 29.2 %Columbia County: 20.2 %Crawford County: 19.3 %Dane County: 18.6 %Dodge County: 18.5 %Door County: 14.6 %Douglas County: 18.1 %Dunn County: 19.2 %Eau Claire County: 19 %Florence County: 13.1 %Fond du Lac County: 20.4 %Forest County: 20.4 %Grant County: 20.9 %Green County: 20.6 %Green Lake County: 20.5 %Iowa County: 20.6 %Iron County: 14.1 %Jackson County: 20.8 %Jefferson County: 18.7 %Juneau County: 18.4 %Kenosha County: 20.5 %Kewaunee County: 20.3 %La Crosse County: 18.4 %Lafayette County: 25.5 %Langlade County: 18.7 %Lincoln County: 17.7 %Manitowoc County: 19.4 %Marathon County: 21.6 %Marinette County: 18.1 %Marquette County: 18.3 %Menominee County: 31 %Milwaukee County: 22.7 %Monroe County: 24.9 %Oconto County: 19.2 %Oneida County: 15.6 %Outagamie County: 22 %Ozaukee County: 20.1 %Pepin County: 21.7 %Pierce County: 19.5 %Polk County: 19.1 %Portage County: 18 %Price County: 16.1 %Racine County: 21.7 %Richland County: 20.5 %Rock County: 21.6 %Rusk County: 19.4 %St. Croix County: 22.5 %Sauk County: 21.3 %Sawyer County: 16.6 %Shawano County: 20.9 %Sheboygan County: 20.4 %Taylor County: 22.9 %Trempealeau County: 24.6 %Vernon County: 25.6 %Vilas County: 14.9 %Walworth County: 18.2 %Washburn County: 16.4 %Washington County: 20.1 %Waukesha County: 20.3 %Waupaca County: 19.6 %Waushara County: 17.2 %Winnebago County: 19.6 %Wood County: 20.6 %
  • Under 18
  • 18 to 19
  • 19 to 20
  • 20 to 21
  • 21 to 22
  • 22 and over
Population under 18, 2025, %. Green County is outlined. Same source and period for every area shown. Source: U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Rankings

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.

Uses the US age of majority. Not comparable with population_0_14_share, which stops at 14.

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How to cite

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 styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). 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 (Population under 18, Green County, 2010 to 2025) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

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, Population under 18, Green County, 2010 to 2025. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/en/population-under-18/green-county-wisconsin. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. 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. Population under 18, Green County, 2010 to 2025. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/en/population-under-18/green-county-wisconsin.

Harvard

U.S. Census Bureau (2026) 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, Population under 18, Green County, 2010 to 2025 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/en/population-under-18/green-county-wisconsin (Accessed: 12 October 2026).

BibTeX
@misc{census_population_under_18_green_2025,
  author = {{U.S. Census Bureau}},
  title = {{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: Population under 18, Green County, 2010 to 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/population-under-18/green-county-wisconsin. Publisher attribution: 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.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - 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: Population under 18, Green County, 2010 to 2025
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/en/population-under-18/green-county-wisconsin
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/population-under-18/green-county-wisconsin.
N1  - Publisher attribution: 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.
ER  -
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Questions

What is the population under 18 in Green County?

Population under 18 in Green County was 20.6% in 2025, according to the U.S. Census Bureau. That is down 0.4 pts from 2024. That is the 23rd highest of 72 counties in 2025.

Where does this figure come from?

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. Retrieved by Invokely on 2026-10-12.

What was the highest population under 18 in Green County?

24.3% in 2010, the highest value since 2010 in this series.

Related statistics for Green County

All statistics for Green County | Green County in figures