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

Counties in Utah by population aged 18 to 64

Salt Lake County had the highest population aged 18 to 64 of 29 counties in 2021, at 62.6%. Piute County had the lowest, at 49.5%. The median was 55.3% and the figure for Utah was 59.7%. Source: the U.S. Census Bureau.

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Highest62.6Salt Lake County
Lowest49.5Piute County
Median55.329 counties
Utah59.7History

Map of counties, 2021

Beaver County: 55 %Box Elder County: 55.4 %Cache County: 60.7 %Carbon County: 55.6 %Daggett County: 49.5 %Davis County: 57.7 %Duchesne County: 53.6 %Emery County: 52.6 %Garfield County: 53.3 %Grand County: 59.8 %Iron County: 58.1 %Juab County: 52.8 %Kane County: 51.2 %Millard County: 51.5 %Morgan County: 52.9 %Piute County: 49.5 %Rich County: 50.5 %Salt Lake County: 62.6 %San Juan County: 55.9 %Sanpete County: 56.3 %Sevier County: 53 %Summit County: 61.6 %Tooele County: 58 %Uintah County: 55.3 %Utah County: 59.7 %Wasatch County: 56.8 %Washington County: 52 %Wayne County: 53.4 %Weber County: 60.2 %
  • Under 52
  • 52 to 53
  • 53 to 56
  • 56 to 59
  • 59 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Salt Lake County: 62.6 %Salt Lake County62.6Summit County: 61.6 %Summit County61.6Cache County: 60.7 %Cache County60.7Weber County: 60.2 %Weber County60.2Grand County: 59.8 %Grand County59.8Utah County: 59.7 %Utah County59.7Iron County: 58.1 %Iron County58.1Tooele County: 58 %Tooele County58Davis County: 57.7 %Davis County57.7Wasatch County: 56.8 %Wasatch County56.8Sanpete County: 56.3 %Sanpete County56.3San Juan County: 55.9 %San Juan County55.9Carbon County: 55.6 %Carbon County55.6Box Elder County: 55.4 %Box Elder County55.4Uintah County: 55.3 %Uintah County55.3Beaver County: 55 %Beaver County55Duchesne County: 53.6 %Duchesne County53.6Wayne County: 53.4 %Wayne County53.4Garfield County: 53.3 %Garfield County53.3Sevier County: 53 %Sevier County53Morgan County: 52.9 %Morgan County52.9Juab County: 52.8 %Juab County52.8Emery County: 52.6 %Emery County52.6Washington County: 52 %Washington County52Millard County: 51.5 %Millard County51.5Kane County: 51.2 %Kane County51.2Rich County: 50.5 %Rich County50.5Daggett County: 49.5 %Daggett County49.5Piute County: 49.5 %Piute County49.5Salt Lake County: 62.6 %Salt Lake County62.6Summit County: 61.6 %Summit County61.6Cache County: 60.7 %Cache County60.7Weber County: 60.2 %Weber County60.2Grand County: 59.8 %Grand County59.8Utah County: 59.7 %Utah County59.7Iron County: 58.1 %Iron County58.1Tooele County: 58 %Tooele County58Davis County: 57.7 %Davis County57.7Wasatch County: 56.8 %Wasatch County56.8Sanpete County: 56.3 %Sanpete County56.3San Juan County: 55.9 %San Juan County55.9Carbon County: 55.6 %Carbon County55.6Box Elder County: 55.4 %Box Elder County55.4Uintah County: 55.3 %Uintah County55.3Beaver County: 55 %Beaver County55Duchesne County: 53.6 %Duchesne County53.6Wayne County: 53.4 %Wayne County53.4Garfield County: 53.3 %Garfield County53.3Sevier County: 53 %Sevier County53Morgan County: 52.9 %Morgan County52.9Juab County: 52.8 %Juab County52.8Emery County: 52.6 %Emery County52.6Washington County: 52 %Washington County52Millard County: 51.5 %Millard County51.5Kane County: 51.2 %Kane County51.2Rich County: 50.5 %Rich County50.5Daggett County: 49.5 %Daggett County49.5Piute County: 49.5 %Piute County49.5
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)Change on 2020
1Salt Lake County62.6+0.2 pts
2Summit County61.6-0.2 pts
3Cache County60.7+0.2 pts
4Weber County60.2+0.2 pts
5Grand County59.8-0 pts
6Utah County59.7+0.5 pts
7Iron County58.1+0.2 pts
8Tooele County58+0.4 pts
9Davis County57.7+0.4 pts
10Wasatch County56.8+0.3 pts
11Sanpete County56.3+0.5 pts
12San Juan County55.9+0.1 pts
13Carbon County55.6+0.2 pts
14Box Elder County55.4+0.3 pts
15Uintah County55.30 pts
16Beaver County55+0.4 pts
17Duchesne County53.60 pts
18Wayne County53.4-0 pts
19Garfield County53.3+0.4 pts
20Sevier County53+0.4 pts
21Morgan County52.9+0.3 pts
22Juab County52.8+0.3 pts
23Emery County52.6-0.1 pts
24Washington County52+0.5 pts
25Millard County51.5+0.1 pts
26Kane County51.2-0.2 pts
27Rich County50.5-0.5 pts
28Daggett County49.5-0.2 pts
29Piute County49.5+1.2 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 Utah by population aged 18 to 64, 2021) [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 Utah by population aged 18 to 64, 2021. 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/utah-counties?period=2021. 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 Utah by population aged 18 to 64, 2021. 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/utah-counties?period=2021.

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 Utah by population aged 18 to 64, 2021 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-18-64/utah-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_utah_by_2021,
  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 Utah by population aged 18 to 64, 2021}},
  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/utah-counties?period=2021. 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 Utah by population aged 18 to 64, 2021
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/utah-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/utah-counties?period=2021.
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 Utah 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?

Salt Lake County, with 62.6% in 2021, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Piute County, with 49.5% in 2021.

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 Utah: more rankings