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 2020, at 67.4%. Wheeler County had the lowest, at 49.4%. The median was 56.2% and the figure for Oregon was 60.7%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest67.4Multnomah County
Lowest49.4Wheeler County
Median56.236 counties
Oregon60.7History

Map of counties, 2020

Baker County: 53.2 %Benton County: 65.9 %Clackamas County: 59.3 %Clatsop County: 57.1 %Columbia County: 59.2 %Coos County: 54.6 %Crook County: 53.8 %Curry County: 50.1 %Deschutes County: 58.5 %Douglas County: 54 %Gilliam County: 52.8 %Grant County: 50.9 %Harney County: 53 %Hood River County: 60.1 %Jackson County: 56.2 %Jefferson County: 56.6 %Josephine County: 53.6 %Klamath County: 56.2 %Lake County: 56.1 %Lane County: 60.9 %Lincoln County: 53.3 %Linn County: 58 %Malheur County: 57.6 %Marion County: 59 %Morrow County: 56.9 %Multnomah County: 67.4 %Polk County: 57.9 %Sherman County: 56.3 %Tillamook County: 54.3 %Umatilla County: 58.7 %Union County: 56.1 %Wallowa County: 50 %Wasco County: 55.7 %Washington County: 63.3 %Wheeler County: 49.4 %Yamhill County: 59.6 %
  • Under 53
  • 53 to 54
  • 54 to 56
  • 56 to 58
  • 58 to 59
  • 59 and over
%, 2020. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2020

Multnomah County: 67.4 %Multnomah County67.4Benton County: 65.9 %Benton County65.9Washington County: 63.3 %Washington County63.3Lane County: 60.9 %Lane County60.9Hood River County: 60.1 %Hood River County60.1Yamhill County: 59.6 %Yamhill County59.6Clackamas County: 59.3 %Clackamas County59.3Columbia County: 59.2 %Columbia County59.2Marion County: 59 %Marion County59Umatilla County: 58.7 %Umatilla County58.7Deschutes County: 58.5 %Deschutes County58.5Linn County: 58 %Linn County58Polk County: 57.9 %Polk County57.9Malheur County: 57.6 %Malheur County57.6Clatsop County: 57.1 %Clatsop County57.1Morrow County: 56.9 %Morrow County56.9Jefferson County: 56.6 %Jefferson County56.6Sherman County: 56.3 %Sherman County56.3Jackson County: 56.2 %Jackson County56.2Klamath County: 56.2 %Klamath County56.2Lake County: 56.1 %Lake County56.1Union County: 56.1 %Union County56.1Wasco County: 55.7 %Wasco County55.7Coos County: 54.6 %Coos County54.6Tillamook County: 54.3 %Tillamook County54.3Douglas County: 54 %Douglas County54Crook County: 53.8 %Crook County53.8Josephine County: 53.6 %Josephine County53.6Lincoln County: 53.3 %Lincoln County53.3Baker County: 53.2 %Baker County53.2Harney County: 53 %Harney County53Gilliam County: 52.8 %Gilliam County52.8Grant County: 50.9 %Grant County50.9Curry County: 50.1 %Curry County50.1Wallowa County: 50 %Wallowa County50Wheeler County: 49.4 %Wheeler County49.4Multnomah County: 67.4 %Multnomah County67.4Benton County: 65.9 %Benton County65.9Washington County: 63.3 %Washington County63.3Lane County: 60.9 %Lane County60.9Hood River County: 60.1 %Hood River County60.1Yamhill County: 59.6 %Yamhill County59.6Clackamas County: 59.3 %Clackamas County59.3Columbia County: 59.2 %Columbia County59.2Marion County: 59 %Marion County59Umatilla County: 58.7 %Umatilla County58.7Deschutes County: 58.5 %Deschutes County58.5Linn County: 58 %Linn County58Polk County: 57.9 %Polk County57.9Malheur County: 57.6 %Malheur County57.6Clatsop County: 57.1 %Clatsop County57.1Morrow County: 56.9 %Morrow County56.9Jefferson County: 56.6 %Jefferson County56.6Sherman County: 56.3 %Sherman County56.3Jackson County: 56.2 %Jackson County56.2Klamath County: 56.2 %Klamath County56.2Lake County: 56.1 %Lake County56.1Union County: 56.1 %Union County56.1Wasco County: 55.7 %Wasco County55.7Coos County: 54.6 %Coos County54.6Tillamook County: 54.3 %Tillamook County54.3Douglas County: 54 %Douglas County54Crook County: 53.8 %Crook County53.8Josephine County: 53.6 %Josephine County53.6Lincoln County: 53.3 %Lincoln County53.3Baker County: 53.2 %Baker County53.2Harney County: 53 %Harney County53Gilliam County: 52.8 %Gilliam County52.8Grant County: 50.9 %Grant County50.9Curry County: 50.1 %Curry County50.1Wallowa County: 50 %Wallowa County50Wheeler County: 49.4 %Wheeler County49.4
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2020 (%)Change on 2019
1Multnomah County67.4-0.2 pts
2Benton County65.9-1.1 pts
3Washington County63.3-0.2 pts
4Lane County60.9-0.4 pts
5Hood River County60.1-0 pts
6Yamhill County59.6-0.4 pts
7Clackamas County59.3-0.4 pts
8Columbia County59.2-0.4 pts
9Marion County59-0.3 pts
10Umatilla County58.7-0.3 pts
11Deschutes County58.5-0.3 pts
12Linn County58-0.4 pts
13Polk County57.9-0.2 pts
14Malheur County57.6-0.3 pts
15Clatsop County57.1-0.7 pts
16Morrow County56.9+0.2 pts
17Jefferson County56.6-0.4 pts
18Sherman County56.3-0.4 pts
19Jackson County56.2-0.6 pts
20Klamath County56.2-0.7 pts
21Lake County56.1-0.5 pts
22Union County56.1-0.4 pts
23Wasco County55.7-0.6 pts
24Coos County54.6-0.7 pts
25Tillamook County54.3-0.5 pts
26Douglas County54-0.5 pts
27Crook County53.8-0.8 pts
28Josephine County53.6-0.5 pts
29Lincoln County53.3-1 pts
30Baker County53.2-0.4 pts
31Harney County53-0.6 pts
32Gilliam County52.8-0.9 pts
33Grant County50.9-1.1 pts
34Curry County50.1-0.8 pts
35Wallowa County50-1.2 pts
36Wheeler County49.4-0.6 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 Oregon 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 Oregon 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/oregon-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 Oregon 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/oregon-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 Oregon 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/oregon-counties?period=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_oregon_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 Oregon 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/oregon-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 Oregon 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/oregon-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/oregon-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  -
Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Oregon by population aged 18 to 64 using official data, and cite the source.
rank_places {"indicator":"population_18_64_share","level":"province","within":"Oregon","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population_18_64_share&level=province&within=Oregon&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest population aged 18 to 64?

Multnomah County, with 67.4% in 2020, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Wheeler County, with 49.4% 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 Oregon: more rankings