Data / Rankings / Population aged 18 to 64 / Counties in Wyoming

Counties in Wyoming by population aged 18 to 64

Albany County had the highest population aged 18 to 64 of 23 counties in 2018, at 71%. Big Horn County had the lowest, at 52.7%. The median was 57.3% and the figure for Wyoming was 59.7%. Source: the U.S. Census Bureau.

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Highest71Albany County
Lowest52.7Big Horn County
Median57.323 counties
Wyoming59.7History

Map of counties, 2018

Albany County: 71 %Big Horn County: 52.7 %Campbell County: 62 %Carbon County: 59.6 %Converse County: 58.2 %Crook County: 53.3 %Fremont County: 56.1 %Goshen County: 56.6 %Hot Springs County: 53.1 %Johnson County: 54.4 %Laramie County: 60.4 %Lincoln County: 55.9 %Natrona County: 60.3 %Niobrara County: 59.6 %Park County: 56.3 %Platte County: 55 %Sheridan County: 56.9 %Sublette County: 58.4 %Sweetwater County: 61 %Teton County: 65.2 %Uinta County: 57.3 %Washakie County: 53.5 %Weston County: 58.1 %
  • Under 55
  • 55 to 57
  • 57 to 58
  • 58 to 60
  • 60 and over
%, 2018. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2018

Albany County: 71 %Albany County71Teton County: 65.2 %Teton County65.2Campbell County: 62 %Campbell County62Sweetwater County: 61 %Sweetwater County61Laramie County: 60.4 %Laramie County60.4Natrona County: 60.3 %Natrona County60.3Niobrara County: 59.6 %Niobrara County59.6Carbon County: 59.6 %Carbon County59.6Sublette County: 58.4 %Sublette County58.4Converse County: 58.2 %Converse County58.2Weston County: 58.1 %Weston County58.1Uinta County: 57.3 %Uinta County57.3Sheridan County: 56.9 %Sheridan County56.9Goshen County: 56.6 %Goshen County56.6Park County: 56.3 %Park County56.3Fremont County: 56.1 %Fremont County56.1Lincoln County: 55.9 %Lincoln County55.9Platte County: 55 %Platte County55Johnson County: 54.4 %Johnson County54.4Washakie County: 53.5 %Washakie County53.5Crook County: 53.3 %Crook County53.3Hot Springs County: 53.1 %Hot Springs County53.1Big Horn County: 52.7 %Big Horn County52.7Albany County: 71 %Albany County71Teton County: 65.2 %Teton County65.2Campbell County: 62 %Campbell County62Sweetwater County: 61 %Sweetwater County61Laramie County: 60.4 %Laramie County60.4Natrona County: 60.3 %Natrona County60.3Niobrara County: 59.6 %Niobrara County59.6Carbon County: 59.6 %Carbon County59.6Sublette County: 58.4 %Sublette County58.4Converse County: 58.2 %Converse County58.2Weston County: 58.1 %Weston County58.1Uinta County: 57.3 %Uinta County57.3Sheridan County: 56.9 %Sheridan County56.9Goshen County: 56.6 %Goshen County56.6Park County: 56.3 %Park County56.3Fremont County: 56.1 %Fremont County56.1Lincoln County: 55.9 %Lincoln County55.9Platte County: 55 %Platte County55Johnson County: 54.4 %Johnson County54.4Washakie County: 53.5 %Washakie County53.5Crook County: 53.3 %Crook County53.3Hot Springs County: 53.1 %Hot Springs County53.1Big Horn County: 52.7 %Big Horn County52.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2018 (%)Change on 2017
1Albany County71-0.5 pts
2Teton County65.2-0.9 pts
3Campbell County62-0.6 pts
4Sweetwater County61-0.5 pts
5Laramie County60.4-0.3 pts
6Natrona County60.3-0.6 pts
7Niobrara County59.6-0.9 pts
8Carbon County59.6-0.4 pts
9Sublette County58.4-0.7 pts
10Converse County58.2-0.4 pts
11Weston County58.1-1 pts
12Uinta County57.3-0.3 pts
13Sheridan County56.9-0.6 pts
14Goshen County56.6-0.6 pts
15Park County56.3-0.7 pts
16Fremont County56.1-0.6 pts
17Lincoln County55.9-0.4 pts
18Platte County55-0.5 pts
19Johnson County54.4-0.5 pts
20Washakie County53.5-0.3 pts
21Crook County53.3-1.2 pts
22Hot Springs County53.1-0.3 pts
23Big Horn County52.7-0.3 pts

Other periods

About this ranking

Residents aged 18 to 64 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.

Not comparable with working-age shares for ages 15 to 64 used in EU and World Bank statistics.

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 18 to 64 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 18 to 64 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 aged 18 to 64, 2018) [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 18 to 64 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 aged 18 to 64, 2018. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/population-18-64/wyoming-counties?period=2018. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 18 to 64 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 aged 18 to 64, 2018. 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-18-64/wyoming-counties?period=2018.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 18 to 64 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 aged 18 to 64, 2018 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-18-64/wyoming-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_wyoming_by_2018,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 18 to 64 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 aged 18 to 64, 2018}},
  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-18-64/wyoming-counties?period=2018. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 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 18 to 64 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 aged 18 to 64, 2018
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-18-64/wyoming-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/wyoming-counties?period=2018.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 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 aged 18 to 64 using official data, and cite the source.
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Questions

Which county has the highest population aged 18 to 64?

Albany County, with 71% in 2018, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Big Horn County, with 52.7% in 2018.

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 18 to 64 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 aged 18 to 64: other rankings

Counties in Wyoming: more rankings