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 2020, at 62.4%. Piute County had the lowest, at 48.3%. The median was 55% and the figure for Utah was 59.4%. Source: the U.S. Census Bureau.

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Highest62.4Salt Lake County
Lowest48.3Piute County
Median5529 counties
Utah59.4History

Map of counties, 2020

Beaver County: 54.6 %Box Elder County: 55 %Cache County: 60.5 %Carbon County: 55.3 %Daggett County: 49.7 %Davis County: 57.3 %Duchesne County: 53.6 %Emery County: 52.7 %Garfield County: 52.9 %Grand County: 59.8 %Iron County: 57.9 %Juab County: 52.5 %Kane County: 51.4 %Millard County: 51.4 %Morgan County: 52.6 %Piute County: 48.3 %Rich County: 51 %Salt Lake County: 62.4 %San Juan County: 55.8 %Sanpete County: 55.8 %Sevier County: 52.6 %Summit County: 61.7 %Tooele County: 57.6 %Uintah County: 55.3 %Utah County: 59.2 %Wasatch County: 56.5 %Washington County: 51.5 %Wayne County: 53.4 %Weber County: 59.9 %
  • Under 52
  • 52 to 53
  • 53 to 56
  • 56 to 58
  • 58 and over
%, 2020. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2020

Salt Lake County: 62.4 %Salt Lake County62.4Summit County: 61.7 %Summit County61.7Cache County: 60.5 %Cache County60.5Weber County: 59.9 %Weber County59.9Grand County: 59.8 %Grand County59.8Utah County: 59.2 %Utah County59.2Iron County: 57.9 %Iron County57.9Tooele County: 57.6 %Tooele County57.6Davis County: 57.3 %Davis County57.3Wasatch County: 56.5 %Wasatch County56.5Sanpete County: 55.8 %Sanpete County55.8San Juan County: 55.8 %San Juan County55.8Carbon County: 55.3 %Carbon County55.3Uintah County: 55.3 %Uintah County55.3Box Elder County: 55 %Box Elder County55Beaver County: 54.6 %Beaver County54.6Duchesne County: 53.6 %Duchesne County53.6Wayne County: 53.4 %Wayne County53.4Garfield County: 52.9 %Garfield County52.9Emery County: 52.7 %Emery County52.7Sevier County: 52.6 %Sevier County52.6Morgan County: 52.6 %Morgan County52.6Juab County: 52.5 %Juab County52.5Washington County: 51.5 %Washington County51.5Millard County: 51.4 %Millard County51.4Kane County: 51.4 %Kane County51.4Rich County: 51 %Rich County51Daggett County: 49.7 %Daggett County49.7Piute County: 48.3 %Piute County48.3Salt Lake County: 62.4 %Salt Lake County62.4Summit County: 61.7 %Summit County61.7Cache County: 60.5 %Cache County60.5Weber County: 59.9 %Weber County59.9Grand County: 59.8 %Grand County59.8Utah County: 59.2 %Utah County59.2Iron County: 57.9 %Iron County57.9Tooele County: 57.6 %Tooele County57.6Davis County: 57.3 %Davis County57.3Wasatch County: 56.5 %Wasatch County56.5Sanpete County: 55.8 %Sanpete County55.8San Juan County: 55.8 %San Juan County55.8Carbon County: 55.3 %Carbon County55.3Uintah County: 55.3 %Uintah County55.3Box Elder County: 55 %Box Elder County55Beaver County: 54.6 %Beaver County54.6Duchesne County: 53.6 %Duchesne County53.6Wayne County: 53.4 %Wayne County53.4Garfield County: 52.9 %Garfield County52.9Emery County: 52.7 %Emery County52.7Sevier County: 52.6 %Sevier County52.6Morgan County: 52.6 %Morgan County52.6Juab County: 52.5 %Juab County52.5Washington County: 51.5 %Washington County51.5Millard County: 51.4 %Millard County51.4Kane County: 51.4 %Kane County51.4Rich County: 51 %Rich County51Daggett County: 49.7 %Daggett County49.7Piute County: 48.3 %Piute County48.3
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2020 (%)Change on 2019
1Salt Lake County62.40 pts
2Summit County61.7-0.3 pts
3Cache County60.5-0 pts
4Weber County59.9-0 pts
5Grand County59.8-0.3 pts
6Utah County59.2+0.3 pts
7Iron County57.9-0 pts
8Tooele County57.6+0.2 pts
9Davis County57.3+0.2 pts
10Wasatch County56.50 pts
11Sanpete County55.8-0.3 pts
12San Juan County55.8-0.2 pts
13Carbon County55.3-0.8 pts
14Uintah County55.3-0.1 pts
15Box Elder County55+0.1 pts
16Beaver County54.6-0.2 pts
17Duchesne County53.6-0.6 pts
18Wayne County53.4-0.3 pts
19Garfield County52.9-0.1 pts
20Emery County52.7-0.2 pts
21Sevier County52.6-0.1 pts
22Morgan County52.6+0.2 pts
23Juab County52.5-0.2 pts
24Washington County51.5-0.1 pts
25Millard County51.4+0.3 pts
26Kane County51.4-0.5 pts
27Rich County51-0 pts
28Daggett County49.7-0.5 pts
29Piute County48.3-0.6 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, 2020) [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, 2020. 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=2020. 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, 2020. 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=2020.

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, 2020 [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=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_utah_by_2020,
  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, 2020}},
  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=2020. 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, 2020
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=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/utah-counties?period=2020.
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 62.4% in 2020, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Piute County, with 48.3% in 2020.

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