Data / Rankings / Population under 18 / Counties in North Dakota

Counties in North Dakota by population under 18

Sioux County had the highest population under 18 of 53 counties in 2016, at 37.6%. Nelson County had the lowest, at 16.9%. The median was 22.3% and the figure for North Dakota was 23.1%. Source: the U.S. Census Bureau.

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Highest37.6Sioux County
Lowest16.9Nelson County
Median22.353 counties
North Dakota23.1History

Map of counties, 2016

Adams County: 19.3 %Barnes County: 20.2 %Benson County: 33.6 %Billings County: 20.7 %Bottineau County: 21 %Bowman County: 23.8 %Burke County: 24.7 %Burleigh County: 23 %Cass County: 22.4 %Cavalier County: 20.3 %Dickey County: 24.9 %Divide County: 21.7 %Dunn County: 23.8 %Eddy County: 21.8 %Emmons County: 20.2 %Foster County: 22.4 %Golden Valley County: 26.7 %Grand Forks County: 20.5 %Grant County: 19.6 %Griggs County: 19.1 %Hettinger County: 21.6 %Kidder County: 21.3 %LaMoure County: 22.2 %Logan County: 22.3 %McHenry County: 23.8 %McIntosh County: 18.8 %McKenzie County: 28.4 %McLean County: 22 %Mercer County: 23.1 %Morton County: 23.5 %Mountrail County: 26.1 %Nelson County: 16.9 %Oliver County: 23.5 %Pembina County: 20.8 %Pierce County: 22.5 %Ramsey County: 22.9 %Ransom County: 23.9 %Renville County: 23.3 %Richland County: 21.7 %Rolette County: 34.3 %Sargent County: 20.1 %Sheridan County: 18.6 %Sioux County: 37.6 %Slope County: 21.5 %Stark County: 24.6 %Steele County: 21 %Stutsman County: 20.1 %Towner County: 22.2 %Traill County: 22.9 %Walsh County: 22.7 %Ward County: 24 %Wells County: 20 %Williams County: 25.9 %
  • Under 20
  • 20 to 21
  • 21 to 22
  • 22 to 23
  • 23 to 25
  • 25 and over
%, 2016. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2016

Sioux County: 37.6 %Sioux County37.6Rolette County: 34.3 %Rolette County34.3Benson County: 33.6 %Benson County33.6McKenzie County: 28.4 %McKenzie County28.4Golden Valley County: 26.7 %Golden Valley County26.7Mountrail County: 26.1 %Mountrail County26.1Williams County: 25.9 %Williams County25.9Dickey County: 24.9 %Dickey County24.9Burke County: 24.7 %Burke County24.7Stark County: 24.6 %Stark County24.6Ward County: 24 %Ward County24Ransom County: 23.9 %Ransom County23.9Bowman County: 23.8 %Bowman County23.8McHenry County: 23.8 %McHenry County23.8Dunn County: 23.8 %Dunn County23.8Morton County: 23.5 %Morton County23.5Oliver County: 23.5 %Oliver County23.5Renville County: 23.3 %Renville County23.3Mercer County: 23.1 %Mercer County23.1Burleigh County: 23 %Burleigh County23Ramsey County: 22.9 %Ramsey County22.9Traill County: 22.9 %Traill County22.9Walsh County: 22.7 %Walsh County22.7Pierce County: 22.5 %Pierce County22.5Cass County: 22.4 %Cass County22.4Foster County: 22.4 %Foster County22.4Logan County: 22.3 %Logan County22.3Towner County: 22.2 %Towner County22.2LaMoure County: 22.2 %LaMoure County22.2McLean County: 22 %McLean County22Eddy County: 21.8 %Eddy County21.8Richland County: 21.7 %Richland County21.7Divide County: 21.7 %Divide County21.7Hettinger County: 21.6 %Hettinger County21.6Slope County: 21.5 %Slope County21.5Kidder County: 21.3 %Kidder County21.3Bottineau County: 21 %Bottineau County21Steele County: 21 %Steele County21Pembina County: 20.8 %Pembina County20.8Billings County: 20.7 %Billings County20.7Grand Forks County: 20.5 %Grand Forks County20.5Cavalier County: 20.3 %Cavalier County20.3Emmons County: 20.2 %Emmons County20.2Barnes County: 20.2 %Barnes County20.2Stutsman County: 20.1 %Stutsman County20.1Sargent County: 20.1 %Sargent County20.1Wells County: 20 %Wells County20Grant County: 19.6 %Grant County19.6Adams County: 19.3 %Adams County19.3Griggs County: 19.1 %Griggs County19.1McIntosh County: 18.8 %McIntosh County18.8Sheridan County: 18.6 %Sheridan County18.6Nelson County: 16.9 %Nelson County16.9Sioux County: 37.6 %Sioux County37.6Rolette County: 34.3 %Rolette County34.3Benson County: 33.6 %Benson County33.6McKenzie County: 28.4 %McKenzie County28.4Golden Valley County: 26.7 %Golden Valley County26.7Mountrail County: 26.1 %Mountrail County26.1Williams County: 25.9 %Williams County25.9Dickey County: 24.9 %Dickey County24.9Burke County: 24.7 %Burke County24.7Stark County: 24.6 %Stark County24.6Ward County: 24 %Ward County24Ransom County: 23.9 %Ransom County23.9Bowman County: 23.8 %Bowman County23.8McHenry County: 23.8 %McHenry County23.8Dunn County: 23.8 %Dunn County23.8Morton County: 23.5 %Morton County23.5Oliver County: 23.5 %Oliver County23.5Renville County: 23.3 %Renville County23.3Mercer County: 23.1 %Mercer County23.1Burleigh County: 23 %Burleigh County23Ramsey County: 22.9 %Ramsey County22.9Traill County: 22.9 %Traill County22.9Walsh County: 22.7 %Walsh County22.7Pierce County: 22.5 %Pierce County22.5Cass County: 22.4 %Cass County22.4Foster County: 22.4 %Foster County22.4Logan County: 22.3 %Logan County22.3Towner County: 22.2 %Towner County22.2LaMoure County: 22.2 %LaMoure County22.2McLean County: 22 %McLean County22Eddy County: 21.8 %Eddy County21.8Richland County: 21.7 %Richland County21.7Divide County: 21.7 %Divide County21.7Hettinger County: 21.6 %Hettinger County21.6Slope County: 21.5 %Slope County21.5Kidder County: 21.3 %Kidder County21.3Bottineau County: 21 %Bottineau County21Steele County: 21 %Steele County21Pembina County: 20.8 %Pembina County20.8Billings County: 20.7 %Billings County20.7Grand Forks County: 20.5 %Grand Forks County20.5Cavalier County: 20.3 %Cavalier County20.3Emmons County: 20.2 %Emmons County20.2Barnes County: 20.2 %Barnes County20.2Stutsman County: 20.1 %Stutsman County20.1Sargent County: 20.1 %Sargent County20.1Wells County: 20 %Wells County20Grant County: 19.6 %Grant County19.6Adams County: 19.3 %Adams County19.3Griggs County: 19.1 %Griggs County19.1McIntosh County: 18.8 %McIntosh County18.8Sheridan County: 18.6 %Sheridan County18.6Nelson County: 16.9 %Nelson County16.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2016 (%)Change on 2015
1Sioux County37.6+0.3 pts
2Rolette County34.3+0.4 pts
3Benson County33.60 pts
4McKenzie County28.4+0.2 pts
5Golden Valley County26.7+0.1 pts
6Mountrail County26.1+0.6 pts
7Williams County25.9+0.6 pts
8Dickey County24.9+0.8 pts
9Burke County24.7+0.3 pts
10Stark County24.6+0.2 pts
11Ward County24+0.1 pts
12Ransom County23.9-0 pts
13Bowman County23.8-0.2 pts
14McHenry County23.8+0.2 pts
15Dunn County23.80 pts
16Morton County23.5+0.1 pts
17Oliver County23.5+0.7 pts
18Renville County23.3+0.1 pts
19Mercer County23.1+0.2 pts
20Burleigh County23+0.1 pts
21Ramsey County22.9-0.1 pts
22Traill County22.9+0.3 pts
23Walsh County22.7+0.2 pts
24Pierce County22.5+0.2 pts
25Cass County22.4+0.1 pts
26Foster County22.4+0.4 pts
27Logan County22.3+0.8 pts
28Towner County22.2-0 pts
29LaMoure County22.2+0.3 pts
30McLean County22-0.1 pts
31Eddy County21.8+0.3 pts
32Richland County21.7+0.2 pts
33Divide County21.7+0.3 pts
34Hettinger County21.6-0.5 pts
35Slope County21.5-0.7 pts
36Kidder County21.3+0.5 pts
37Bottineau County21-0.1 pts
38Steele County21+0.2 pts
39Pembina County20.8-0.3 pts
40Billings County20.7+1.5 pts
41Grand Forks County20.5+0.2 pts
42Cavalier County20.3-0.4 pts
43Emmons County20.2-0.6 pts
44Barnes County20.2-0.3 pts
45Stutsman County20.1-0.3 pts
46Sargent County20.1+0.4 pts
47Wells County20+0.7 pts
48Grant County19.6+0.7 pts
49Adams County19.3+0.2 pts
50Griggs County19.1+0.4 pts
51McIntosh County18.8+0.2 pts
52Sheridan County18.6+0.8 pts
53Nelson County16.9-0.9 pts

Other periods

About this ranking

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.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

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 (Counties in North Dakota by population under 18, 2016) [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, Counties in North Dakota by population under 18, 2016. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/population-under-18/north-dakota-counties?period=2016. 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. Counties in North Dakota by population under 18, 2016. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/population-under-18/north-dakota-counties?period=2016.

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, Counties in North Dakota by population under 18, 2016 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-under-18/north-dakota-counties?period=2016 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_north_dakota_2016,
  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: Counties in North Dakota by population under 18, 2016}},
  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/rankings/population-under-18/north-dakota-counties?period=2016. 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: Counties in North Dakota by population under 18, 2016
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/rankings/population-under-18/north-dakota-counties?period=2016
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-under-18/north-dakota-counties?period=2016.
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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Rank Counties in North Dakota by population under 18 using official data, and cite the source.
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Questions

Which county has the highest population under 18?

Sioux County, with 37.6% in 2016, according to the U.S. Census Bureau.

Which county has the lowest population under 18?

Nelson County, with 16.9% in 2016.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: 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 2026-10-12.

Population under 18: other rankings

Counties in North Dakota: more rankings