Data / Population under 18 / Onslow County

Population under 18 in Onslow County

Population under 18 in Onslow County was 23.8% in 2025, according to the U.S. Census Bureau. That is down 0.1 pts from 2024. That is the 9th highest of 100 counties in 2025.

202523.8%
Change on 2024-0.1 pts
Rank9th of 100Counties in North Carolina ranked
Series high24.72011
Series low23.12019

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 Onslow County, 2010 to 2025

2323.52424.5252010201320162019202220252010: 24.3 %2011: 24.7 %2012: 24.4 %2013: 24.3 %2014: 24.4 %2015: 23.9 %2016: 23.8 %2017: 23.6 %2018: 23.9 %2019: 23.1 %2020: 23.7 %2021: 24.1 %2022: 24.3 %2023: 24.3 %2024: 24 %2025: 23.8 %2323.52424.5252010201620252010: 24.3 %2011: 24.7 %2012: 24.4 %2013: 24.3 %2014: 24.4 %2015: 23.9 %2016: 23.8 %2017: 23.6 %2018: 23.9 %2019: 23.1 %2020: 23.7 %2021: 24.1 %2022: 24.3 %2023: 24.3 %2024: 24 %2025: 23.8 %
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12, published 2026-06-25.
All 16 values
Period%
202523.8
202424
202324.3
202224.3
202124.1
202023.7
201923.1
201823.9
201723.6
201623.8
201523.9
201424.4
201324.3
201224.4
201124.7
201024.3

Compared with North Carolina and United States

Place2025
Onslow County23.8
North Carolina21.1
United States21.1

Onslow County compared with nearby places

Alamance County: 21.1 %Alexander County: 19.1 %Alleghany County: 16.9 %Anson County: 21 %Ashe County: 15.9 %Avery County: 14.7 %Beaufort County: 18.5 %Bertie County: 15.8 %Bladen County: 21.5 %Brunswick County: 13.6 %Buncombe County: 16.9 %Burke County: 19.1 %Cabarrus County: 24.2 %Caldwell County: 19.5 %Camden County: 22.5 %Carteret County: 16.1 %Caswell County: 18.3 %Catawba County: 20.4 %Chatham County: 18.3 %Cherokee County: 16.4 %Chowan County: 18.6 %Clay County: 15.2 %Cleveland County: 21.9 %Columbus County: 21.2 %Craven County: 20.2 %Cumberland County: 24.7 %Currituck County: 21.6 %Dare County: 16.6 %Davidson County: 21.2 %Davie County: 19.8 %Duplin County: 25 %Durham County: 19.2 %Edgecombe County: 22.3 %Forsyth County: 21.5 %Franklin County: 21.8 %Gaston County: 21.8 %Gates County: 19 %Graham County: 19.7 %Granville County: 19.7 %Greene County: 18.7 %Guilford County: 21.2 %Halifax County: 20.2 %Harnett County: 25.1 %Haywood County: 16.7 %Henderson County: 17.4 %Hertford County: 19.3 %Hoke County: 26.7 %Hyde County: 14.5 %Iredell County: 21.4 %Jackson County: 15.8 %Johnston County: 23.8 %Jones County: 19.1 %Lee County: 22.7 %Lenoir County: 22.4 %Lincoln County: 20.3 %McDowell County: 18.4 %Macon County: 17 %Madison County: 16.4 %Martin County: 20.2 %Mecklenburg County: 22.1 %Mitchell County: 17.3 %Montgomery County: 20.2 %Moore County: 21.7 %Nash County: 21.2 %New Hanover County: 16.8 %Northampton County: 18.2 %Onslow County: 23.8 %Orange County: 17.8 %Pamlico County: 13.7 %Pasquotank County: 20.1 %Pender County: 22.4 %Perquimans County: 17.9 %Person County: 20.5 %Pitt County: 21 %Polk County: 15.4 %Randolph County: 21.5 %Richmond County: 23.1 %Robeson County: 26.4 %Rockingham County: 19.8 %Rowan County: 20.9 %Rutherford County: 19.7 %Sampson County: 24.8 %Scotland County: 22.6 %Stanly County: 21.3 %Stokes County: 18.6 %Surry County: 20.9 %Swain County: 21.8 %Transylvania County: 16 %Tyrrell County: 18.5 %Union County: 24.6 %Vance County: 23.2 %Wake County: 22 %Warren County: 17.2 %Washington County: 19.4 %Watauga County: 11 %Wayne County: 23.8 %Wilkes County: 19.5 %Wilson County: 21.8 %Yadkin County: 20.7 %Yancey County: 17.1 %
  • Under 17
  • 17 to 19
  • 19 to 20
  • 20 to 21
  • 21 to 22
  • 22 and over
Population under 18, 2025, %. Onslow 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, Onslow 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, Onslow 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/onslow-county-north-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, Onslow 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/onslow-county-north-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, Onslow 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/onslow-county-north-carolina (Accessed: 12 October 2026).

BibTeX
@misc{census_population_under_18_onslow_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, Onslow 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/onslow-county-north-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, Onslow 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/onslow-county-north-carolina
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/population-under-18/onslow-county-north-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 Onslow County?

Population under 18 in Onslow County was 23.8% in 2025, according to the U.S. Census Bureau. That is down 0.1 pts from 2024. That is the 9th highest of 100 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 Onslow County?

24.7% in 2011, the highest value since 2010 in this series.

Related statistics for Onslow County

All statistics for Onslow County | Onslow County in figures