Counties in Oregon by population aged 18 to 64

Multnomah County had the highest population aged 18 to 64 of 36 counties in 2023, at 67%. Curry County had the lowest, at 47.9%. The median was 55.4% and the figure for Oregon was 60.1%. Source: the U.S. Census Bureau.

Lowest47.9Curry County
Median55.436 counties
Oregon60.1History

All counties, 2023

Multnomah County: 67 %Multnomah County67Benton County: 65.8 %Benton County65.8Washington County: 63.2 %Washington County63.2Lane County: 60.1 %Lane County60.1Hood River County: 59.6 %Hood River County59.6Yamhill County: 59.4 %Yamhill County59.4Marion County: 59 %Marion County59Deschutes County: 58.6 %Deschutes County58.6Clackamas County: 58.4 %Clackamas County58.4Umatilla County: 58.4 %Umatilla County58.4Columbia County: 58.2 %Columbia County58.2Polk County: 58 %Polk County58Linn County: 57.6 %Linn County57.6Malheur County: 57.3 %Malheur County57.3Jefferson County: 56.8 %Jefferson County56.8Morrow County: 56.5 %Morrow County56.5Clatsop County: 56.2 %Clatsop County56.2Wasco County: 55.5 %Wasco County55.5Klamath County: 55.2 %Klamath County55.2Jackson County: 55.1 %Jackson County55.1Union County: 55 %Union County55Lake County: 55 %Lake County55Crook County: 53.8 %Crook County53.8Coos County: 53.4 %Coos County53.4Tillamook County: 53.3 %Tillamook County53.3Sherman County: 53.3 %Sherman County53.3Douglas County: 53.2 %Douglas County53.2Josephine County: 52.3 %Josephine County52.3Harney County: 52.1 %Harney County52.1Gilliam County: 51.9 %Gilliam County51.9Baker County: 51.9 %Baker County51.9Lincoln County: 51.9 %Lincoln County51.9Grant County: 49.6 %Grant County49.6Wheeler County: 49.4 %Wheeler County49.4Wallowa County: 49.2 %Wallowa County49.2Curry County: 47.9 %Curry County47.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Multnomah County67-0.1 pts
2Benton County65.8-0.3 pts
3Washington County63.2-0 pts
4Lane County60.1-0.6 pts
5Hood River County59.6-0 pts
6Yamhill County59.4+0.1 pts
7Marion County59+0.1 pts
8Deschutes County58.6-0 pts
9Clackamas County58.4-0.3 pts
10Umatilla County58.4-0.2 pts
11Columbia County58.2-0.3 pts
12Polk County580 pts
13Linn County57.6-0.1 pts
14Malheur County57.3-0.3 pts
15Jefferson County56.8+0.2 pts
16Morrow County56.5-0.6 pts
17Clatsop County56.2-0.4 pts
18Wasco County55.5+0.1 pts
19Klamath County55.2-0.2 pts
20Jackson County55.1-0.4 pts
21Union County55-0.2 pts
22Lake County55-0.7 pts
23Crook County53.8+0.1 pts
24Coos County53.4-0.3 pts
25Tillamook County53.3-0.2 pts
26Sherman County53.3-1.1 pts
27Douglas County53.2-0.2 pts
28Josephine County52.3-0.4 pts
29Harney County52.1-0 pts
30Gilliam County51.9-0 pts
31Baker County51.9-0 pts
32Lincoln County51.9-0.4 pts
33Grant County49.6-0.4 pts
34Wheeler County49.4-0.1 pts
35Wallowa County49.2-0 pts
36Curry County47.9-0.9 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 Oregon by population aged 18 to 64, 2023) [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 Oregon by population aged 18 to 64, 2023. 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/oregon-counties?period=2023. 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 Oregon by population aged 18 to 64, 2023. 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/oregon-counties?period=2023.

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 Oregon by population aged 18 to 64, 2023 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-18-64/oregon-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_oregon_by_2023,
  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 Oregon by population aged 18 to 64, 2023}},
  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/oregon-counties?period=2023. 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 Oregon by population aged 18 to 64, 2023
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/oregon-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/oregon-counties?period=2023.
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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Questions

Which county has the highest population aged 18 to 64?

Multnomah County, with 67% in 2023, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Curry County, with 47.9% in 2023.

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 Oregon: more rankings