Data / Population under 18 / Bennett County

Population under 18 in Bennett County

Population under 18 in Bennett County was 30.9% in 2025, according to the U.S. Census Bureau. That is up 0.1 pts from 2024. That is the 10th highest of 66 counties in 2025.

202530.9%
Change on 2024+0.1 pts
Rank10th of 66Counties in South Dakota ranked
Series high34.62010
Series low30.82024

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 Bennett County, 2010 to 2025

3031323334352010201320162019202220252010: 34.6 %2011: 34.2 %2012: 33.6 %2013: 32.9 %2014: 33.5 %2015: 32.9 %2016: 32.8 %2017: 32.9 %2018: 33 %2019: 32.6 %2020: 32.4 %2021: 31.4 %2022: 31.2 %2023: 31.3 %2024: 30.8 %2025: 30.9 %3031323334352010201620252010: 34.6 %2011: 34.2 %2012: 33.6 %2013: 32.9 %2014: 33.5 %2015: 32.9 %2016: 32.8 %2017: 32.9 %2018: 33 %2019: 32.6 %2020: 32.4 %2021: 31.4 %2022: 31.2 %2023: 31.3 %2024: 30.8 %2025: 30.9 %
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12, published 2026-06-25.
All 16 values
Period%
202530.9
202430.8
202331.3
202231.2
202131.4
202032.4
201932.6
201833
201732.9
201632.8
201532.9
201433.5
201332.9
201233.6
201134.2
201034.6

Compared with South Dakota and United States

Place2025
Bennett County30.9
South Dakota23.5
United States21.1

Bennett County compared with nearby places

Aurora County: 24.2 %Beadle County: 28.5 %Bennett County: 30.9 %Bon Homme County: 19.3 %Brookings County: 20.7 %Brown County: 22.2 %Brule County: 23.8 %Buffalo County: 35 %Butte County: 23.6 %Campbell County: 20.6 %Charles Mix County: 28.2 %Clark County: 28.1 %Clay County: 16.2 %Codington County: 21.8 %Corson County: 35.6 %Custer County: 15.7 %Davison County: 21.5 %Day County: 21.8 %Deuel County: 24.5 %Dewey County: 38.7 %Douglas County: 25.7 %Edmunds County: 21.1 %Fall River County: 15.7 %Faulk County: 26.8 %Grant County: 22.8 %Gregory County: 23.3 %Haakon County: 23.8 %Hamlin County: 32.5 %Hand County: 23 %Hanson County: 27.9 %Harding County: 24.6 %Hughes County: 23 %Hutchinson County: 25.8 %Hyde County: 24 %Jackson County: 35 %Jerauld County: 25.4 %Jones County: 24.2 %Kingsbury County: 24.8 %Lake County: 21 %Lawrence County: 16.3 %Lincoln County: 24.4 %Lyman County: 27.7 %McCook County: 26.7 %McPherson County: 19.1 %Marshall County: 25.6 %Meade County: 20.7 %Mellette County: 40.9 %Miner County: 22.3 %Minnehaha County: 24.4 %Moody County: 26.4 %Oglala Lakota County: 35.1 %Pennington County: 21.9 %Perkins County: 21.7 %Potter County: 20.2 %Roberts County: 28.2 %Sanborn County: 24.7 %Spink County: 22.9 %Stanley County: 22.4 %Sully County: 16.8 %Todd County: 36.6 %Tripp County: 25.7 %Turner County: 27.4 %Union County: 22.9 %Walworth County: 23.4 %Yankton County: 19.8 %Ziebach County: 32.7 %
  • Under 21
  • 21 to 23
  • 23 to 24
  • 24 to 26
  • 26 to 28
  • 28 and over
Population under 18, 2025, %. Bennett 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, Bennett 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, Bennett 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/bennett-county-south-dakota. 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, Bennett 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/bennett-county-south-dakota.

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, Bennett 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/bennett-county-south-dakota (Accessed: 12 October 2026).

BibTeX
@misc{census_population_under_18_bennett_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, Bennett 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/bennett-county-south-dakota. 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, Bennett 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/bennett-county-south-dakota
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/population-under-18/bennett-county-south-dakota.
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 Bennett County?

Population under 18 in Bennett County was 30.9% in 2025, according to the U.S. Census Bureau. That is up 0.1 pts from 2024. That is the 10th highest of 66 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 Bennett County?

34.6% in 2010, the highest value since 2010 in this series.

Related statistics for Bennett County

All statistics for Bennett County | Bennett County in figures