Data / Population under 18 / Colleton County

Population under 18 in Colleton County

Population under 18 in Colleton County was 21.5% in 2025, according to the U.S. Census Bureau. That is down 0.3 pts from 2024. That is the 18th highest of 46 counties in 2025.

202521.5%
Change on 2024-0.3 pts
Rank18th of 46Counties in South Carolina ranked
Series high24.32010
Series low21.22018

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 Colleton County, 2010 to 2025

21222324252010201320162019202220252010: 24.3 %2011: 23.6 %2012: 23.2 %2013: 22.7 %2014: 22.4 %2015: 22 %2016: 21.7 %2017: 21.4 %2018: 21.2 %2019: 21.2 %2020: 21.6 %2021: 21.6 %2022: 21.7 %2023: 21.8 %2024: 21.7 %2025: 21.5 %21222324252010201620252010: 24.3 %2011: 23.6 %2012: 23.2 %2013: 22.7 %2014: 22.4 %2015: 22 %2016: 21.7 %2017: 21.4 %2018: 21.2 %2019: 21.2 %2020: 21.6 %2021: 21.6 %2022: 21.7 %2023: 21.8 %2024: 21.7 %2025: 21.5 %
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12, published 2026-06-25.
All 16 values
Period%
202521.5
202421.7
202321.8
202221.7
202121.6
202021.6
201921.2
201821.2
201721.4
201621.7
201522
201422.4
201322.7
201223.2
201123.6
201024.3

Compared with South Carolina and United States

Place2025
Colleton County21.5
South Carolina20.6
United States21.1

Colleton County compared with nearby places

Abbeville County: 19.4 %Aiken County: 21.3 %Allendale County: 16 %Anderson County: 21.7 %Bamberg County: 18.6 %Barnwell County: 23.2 %Beaufort County: 15.9 %Berkeley County: 22.9 %Calhoun County: 18.3 %Charleston County: 18.7 %Cherokee County: 22.1 %Chester County: 21.1 %Chesterfield County: 22.4 %Clarendon County: 18 %Colleton County: 21.5 %Darlington County: 22.2 %Dillon County: 24.4 %Dorchester County: 23.5 %Edgefield County: 17.3 %Fairfield County: 16.9 %Florence County: 22.6 %Georgetown County: 15.8 %Greenville County: 22 %Greenwood County: 21 %Hampton County: 20.8 %Horry County: 16.1 %Jasper County: 17.2 %Kershaw County: 22.8 %Lancaster County: 22.1 %Laurens County: 21.1 %Lee County: 17.9 %Lexington County: 22.3 %McCormick County: 10 %Marion County: 21.1 %Marlboro County: 19.2 %Newberry County: 20.7 %Oconee County: 18 %Orangeburg County: 20.3 %Pickens County: 18 %Richland County: 19.6 %Saluda County: 21.8 %Spartanburg County: 22.9 %Sumter County: 22.5 %Union County: 20 %Williamsburg County: 18 %York County: 23.1 %
  • Under 18
  • 18 to 19
  • 19 to 21
  • 21 to 22
  • 22 to 23
  • 23 and over
Population under 18, 2025, %. Colleton 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, Colleton 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, Colleton 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/colleton-county-south-carolina. 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, Colleton 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/colleton-county-south-carolina.

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, Colleton 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/colleton-county-south-carolina (Accessed: 12 October 2026).

BibTeX
@misc{census_population_under_18_colleton_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, Colleton 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/colleton-county-south-carolina. 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, Colleton 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/colleton-county-south-carolina
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/population-under-18/colleton-county-south-carolina.
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 Colleton County?

Population under 18 in Colleton County was 21.5% in 2025, according to the U.S. Census Bureau. That is down 0.3 pts from 2024. That is the 18th highest of 46 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 Colleton County?

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

Related statistics for Colleton County

All statistics for Colleton County | Colleton County in figures