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

Counties in Oregon by population aged 18 to 64

Multnomah County had the highest population aged 18 to 64 of 36 counties in 2018, at 67.6%. Wheeler County had the lowest, at 50.8%. The median was 57.2% and the figure for Oregon was 61.3%. Source: the U.S. Census Bureau.

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Highest67.6Multnomah County
Lowest50.8Wheeler County
Median57.236 counties
Oregon61.3History

Map of counties, 2018

Baker County: 53.9 %Benton County: 67.4 %Clackamas County: 60.1 %Clatsop County: 58.2 %Columbia County: 59.9 %Coos County: 55.9 %Crook County: 55 %Curry County: 51.4 %Deschutes County: 59.1 %Douglas County: 54.9 %Gilliam County: 53.7 %Grant County: 52.6 %Harney County: 54 %Hood River County: 60.5 %Jackson County: 57.4 %Jefferson County: 57.2 %Josephine County: 54.5 %Klamath County: 57.2 %Lake County: 57.1 %Lane County: 61.8 %Lincoln County: 54.9 %Linn County: 58.6 %Malheur County: 58.1 %Marion County: 59.5 %Morrow County: 56.8 %Multnomah County: 67.6 %Polk County: 58.6 %Sherman County: 55.8 %Tillamook County: 55.4 %Umatilla County: 59.3 %Union County: 56.5 %Wallowa County: 51.6 %Wasco County: 56.6 %Washington County: 63.6 %Wheeler County: 50.8 %Yamhill County: 60.5 %
  • Under 54
  • 54 to 56
  • 56 to 57
  • 57 to 59
  • 59 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

Multnomah County: 67.6 %Multnomah County67.6Benton County: 67.4 %Benton County67.4Washington County: 63.6 %Washington County63.6Lane County: 61.8 %Lane County61.8Hood River County: 60.5 %Hood River County60.5Yamhill County: 60.5 %Yamhill County60.5Clackamas County: 60.1 %Clackamas County60.1Columbia County: 59.9 %Columbia County59.9Marion County: 59.5 %Marion County59.5Umatilla County: 59.3 %Umatilla County59.3Deschutes County: 59.1 %Deschutes County59.1Linn County: 58.6 %Linn County58.6Polk County: 58.6 %Polk County58.6Clatsop County: 58.2 %Clatsop County58.2Malheur County: 58.1 %Malheur County58.1Jackson County: 57.4 %Jackson County57.4Jefferson County: 57.2 %Jefferson County57.2Klamath County: 57.2 %Klamath County57.2Lake County: 57.1 %Lake County57.1Morrow County: 56.8 %Morrow County56.8Wasco County: 56.6 %Wasco County56.6Union County: 56.5 %Union County56.5Coos County: 55.9 %Coos County55.9Sherman County: 55.8 %Sherman County55.8Tillamook County: 55.4 %Tillamook County55.4Crook County: 55 %Crook County55Douglas County: 54.9 %Douglas County54.9Lincoln County: 54.9 %Lincoln County54.9Josephine County: 54.5 %Josephine County54.5Harney County: 54 %Harney County54Baker County: 53.9 %Baker County53.9Gilliam County: 53.7 %Gilliam County53.7Grant County: 52.6 %Grant County52.6Wallowa County: 51.6 %Wallowa County51.6Curry County: 51.4 %Curry County51.4Wheeler County: 50.8 %Wheeler County50.8Multnomah County: 67.6 %Multnomah County67.6Benton County: 67.4 %Benton County67.4Washington County: 63.6 %Washington County63.6Lane County: 61.8 %Lane County61.8Hood River County: 60.5 %Hood River County60.5Yamhill County: 60.5 %Yamhill County60.5Clackamas County: 60.1 %Clackamas County60.1Columbia County: 59.9 %Columbia County59.9Marion County: 59.5 %Marion County59.5Umatilla County: 59.3 %Umatilla County59.3Deschutes County: 59.1 %Deschutes County59.1Linn County: 58.6 %Linn County58.6Polk County: 58.6 %Polk County58.6Clatsop County: 58.2 %Clatsop County58.2Malheur County: 58.1 %Malheur County58.1Jackson County: 57.4 %Jackson County57.4Jefferson County: 57.2 %Jefferson County57.2Klamath County: 57.2 %Klamath County57.2Lake County: 57.1 %Lake County57.1Morrow County: 56.8 %Morrow County56.8Wasco County: 56.6 %Wasco County56.6Union County: 56.5 %Union County56.5Coos County: 55.9 %Coos County55.9Sherman County: 55.8 %Sherman County55.8Tillamook County: 55.4 %Tillamook County55.4Crook County: 55 %Crook County55Douglas County: 54.9 %Douglas County54.9Lincoln County: 54.9 %Lincoln County54.9Josephine County: 54.5 %Josephine County54.5Harney County: 54 %Harney County54Baker County: 53.9 %Baker County53.9Gilliam County: 53.7 %Gilliam County53.7Grant County: 52.6 %Grant County52.6Wallowa County: 51.6 %Wallowa County51.6Curry County: 51.4 %Curry County51.4Wheeler County: 50.8 %Wheeler County50.8
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2018 (%)Change on 2017
1Multnomah County67.6-0.2 pts
2Benton County67.4-0.4 pts
3Washington County63.6-0 pts
4Lane County61.8-0.5 pts
5Hood River County60.5-0 pts
6Yamhill County60.5-0.1 pts
7Clackamas County60.1-0.4 pts
8Columbia County59.9-0.1 pts
9Marion County59.5-0.1 pts
10Umatilla County59.3-0.1 pts
11Deschutes County59.1-0.3 pts
12Linn County58.6-0.1 pts
13Polk County58.6-0.1 pts
14Clatsop County58.2-0.7 pts
15Malheur County58.1-0.3 pts
16Jackson County57.4-0.3 pts
17Jefferson County57.2-0.3 pts
18Klamath County57.2-0.5 pts
19Lake County57.1-0.1 pts
20Morrow County56.8-0.5 pts
21Wasco County56.6-0.2 pts
22Union County56.5-0.7 pts
23Coos County55.9-0.2 pts
24Sherman County55.8+0.1 pts
25Tillamook County55.4-0.6 pts
26Crook County55-0.3 pts
27Douglas County54.9-0.5 pts
28Lincoln County54.9-0.7 pts
29Josephine County54.5-0.3 pts
30Harney County54-0.2 pts
31Baker County53.9-0.8 pts
32Gilliam County53.7-0.3 pts
33Grant County52.6-0.5 pts
34Wallowa County51.6-1.2 pts
35Curry County51.4-0.9 pts
36Wheeler County50.8+0.1 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, 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 Oregon 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/oregon-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 Oregon 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/oregon-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 Oregon 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/oregon-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_oregon_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 Oregon 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/oregon-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 Oregon 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/oregon-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/oregon-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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Questions

Which county has the highest population aged 18 to 64?

Multnomah County, with 67.6% in 2018, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Wheeler County, with 50.8% 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 Oregon: more rankings