Data / Rankings / Population under 18 / Counties in Wyoming

Counties in Wyoming by population under 18

Uinta County had the highest population under 18 of 23 counties in 2014, at 30%. Albany County had the lowest, at 16.9%. The median was 23.8% and the figure for Wyoming was 24%. Source: the U.S. Census Bureau.

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Highest30Uinta County
Lowest16.9Albany County
Median23.823 counties
Wyoming24History

Map of counties, 2014

Albany County: 16.9 %Big Horn County: 25.7 %Campbell County: 28.6 %Carbon County: 24.1 %Converse County: 25 %Crook County: 23.7 %Fremont County: 25.5 %Goshen County: 20.5 %Hot Springs County: 21.1 %Johnson County: 22 %Laramie County: 23.8 %Lincoln County: 27.3 %Natrona County: 24.1 %Niobrara County: 18 %Park County: 20.6 %Platte County: 20.3 %Sheridan County: 22.2 %Sublette County: 24.9 %Sweetwater County: 27.5 %Teton County: 19.7 %Uinta County: 30 %Washakie County: 24.8 %Weston County: 21.7 %
  • Under 21
  • 21 to 22
  • 22 to 24
  • 24 to 26
  • 26 and over
%, 2014. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2014

Uinta County: 30 %Uinta County30Campbell County: 28.6 %Campbell County28.6Sweetwater County: 27.5 %Sweetwater County27.5Lincoln County: 27.3 %Lincoln County27.3Big Horn County: 25.7 %Big Horn County25.7Fremont County: 25.5 %Fremont County25.5Converse County: 25 %Converse County25Sublette County: 24.9 %Sublette County24.9Washakie County: 24.8 %Washakie County24.8Natrona County: 24.1 %Natrona County24.1Carbon County: 24.1 %Carbon County24.1Laramie County: 23.8 %Laramie County23.8Crook County: 23.7 %Crook County23.7Sheridan County: 22.2 %Sheridan County22.2Johnson County: 22 %Johnson County22Weston County: 21.7 %Weston County21.7Hot Springs County: 21.1 %Hot Springs County21.1Park County: 20.6 %Park County20.6Goshen County: 20.5 %Goshen County20.5Platte County: 20.3 %Platte County20.3Teton County: 19.7 %Teton County19.7Niobrara County: 18 %Niobrara County18Albany County: 16.9 %Albany County16.9Uinta County: 30 %Uinta County30Campbell County: 28.6 %Campbell County28.6Sweetwater County: 27.5 %Sweetwater County27.5Lincoln County: 27.3 %Lincoln County27.3Big Horn County: 25.7 %Big Horn County25.7Fremont County: 25.5 %Fremont County25.5Converse County: 25 %Converse County25Sublette County: 24.9 %Sublette County24.9Washakie County: 24.8 %Washakie County24.8Natrona County: 24.1 %Natrona County24.1Carbon County: 24.1 %Carbon County24.1Laramie County: 23.8 %Laramie County23.8Crook County: 23.7 %Crook County23.7Sheridan County: 22.2 %Sheridan County22.2Johnson County: 22 %Johnson County22Weston County: 21.7 %Weston County21.7Hot Springs County: 21.1 %Hot Springs County21.1Park County: 20.6 %Park County20.6Goshen County: 20.5 %Goshen County20.5Platte County: 20.3 %Platte County20.3Teton County: 19.7 %Teton County19.7Niobrara County: 18 %Niobrara County18Albany County: 16.9 %Albany County16.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2014 (%)Change on 2013
1Uinta County30+0.3 pts
2Campbell County28.6+0.3 pts
3Sweetwater County27.5+0.2 pts
4Lincoln County27.3-0 pts
5Big Horn County25.7+0.2 pts
6Fremont County25.5+0.1 pts
7Converse County25-0.2 pts
8Sublette County24.9+0.3 pts
9Washakie County24.8-0.3 pts
10Natrona County24.1+0.2 pts
11Carbon County24.1+0.6 pts
12Laramie County23.8-0 pts
13Crook County23.70 pts
14Sheridan County22.2+0.4 pts
15Johnson County22-0.1 pts
16Weston County21.7-0.1 pts
17Hot Springs County21.1+0.4 pts
18Park County20.60 pts
19Goshen County20.5+0.5 pts
20Platte County20.3+0.3 pts
21Teton County19.7+0.2 pts
22Niobrara County180 pts
23Albany County16.9+0.3 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 Wyoming by population under 18, 2014) [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 Wyoming by population under 18, 2014. 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/wyoming-counties?period=2014. 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 Wyoming by population under 18, 2014. 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/wyoming-counties?period=2014.

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 Wyoming by population under 18, 2014 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-under-18/wyoming-counties?period=2014 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_wyoming_by_2014,
  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 Wyoming by population under 18, 2014}},
  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/wyoming-counties?period=2014. 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 Wyoming by population under 18, 2014
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/wyoming-counties?period=2014
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-under-18/wyoming-counties?period=2014.
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 Wyoming by population under 18 using official data, and cite the source.
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Questions

Which county has the highest population under 18?

Uinta County, with 30% in 2014, according to the U.S. Census Bureau.

Which county has the lowest population under 18?

Albany County, with 16.9% in 2014.

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 Wyoming: more rankings