Data / Rankings / Population / Counties in Oregon

Counties in Oregon by population

Multnomah County had the highest population of 36 counties in 2024, at 794,472. Wheeler County had the lowest, at 1,454. The median was 45,980 and the figure for Oregon was 4.27 million. Source: the U.S. Census Bureau.

Highest794,472Multnomah County
Lowest1,454Wheeler County
Median45,98036 counties
Oregon4,265,324History

All counties, 2024

CSVChart (SVG)

Multnomah CountyMultnomah County: 794,472 persons794,472Washington CountyWashington County: 608,613 persons608,613Clackamas CountyClackamas County: 425,245 persons425,245Lane CountyLane County: 382,081 persons382,081Marion CountyMarion County: 353,218 persons353,218Jackson CountyJackson County: 221,347 persons221,347Deschutes CountyDeschutes County: 211,202 persons211,202Linn CountyLinn County: 132,584 persons132,584Douglas CountyDouglas County: 112,351 persons112,351Yamhill CountyYamhill County: 110,065 persons110,065Benton CountyBenton County: 97,590 persons97,590Polk CountyPolk County: 90,205 persons90,205Josephine CountyJosephine County: 88,143 persons88,143Umatilla CountyUmatilla County: 80,958 persons80,958Klamath CountyKlamath County: 70,371 persons70,371Coos CountyCoos County: 64,242 persons64,242Columbia CountyColumbia County: 53,965 persons53,965Lincoln CountyLincoln County: 50,753 persons50,753Clatsop CountyClatsop County: 41,206 persons41,206Malheur CountyMalheur County: 32,371 persons32,371Tillamook CountyTillamook County: 27,422 persons27,422Crook CountyCrook County: 27,320 persons27,320Wasco CountyWasco County: 26,461 persons26,461Union CountyUnion County: 25,945 persons25,945Jefferson CountyJefferson County: 25,685 persons25,685Hood River CountyHood River County: 23,733 persons23,733Curry CountyCurry County: 22,820 persons22,820Baker CountyBaker County: 16,757 persons16,757Morrow CountyMorrow County: 12,454 persons12,454Lake CountyLake County: 8,167 persons8,167Wallowa CountyWallowa County: 7,598 persons7,598Harney CountyHarney County: 7,423 persons7,423Grant CountyGrant County: 7,104 persons7,104Sherman CountySherman County: 2,015 persons2,015Gilliam CountyGilliam County: 1,984 persons1,984Wheeler CountyWheeler County: 1,454 persons1,454
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2024
persons		Change on 2023
1Multnomah County794,472+0.1%
2Washington County608,613+0.8%
3Clackamas County425,245+0.3%
4Lane County382,081-0%
5Marion County353,218+0.9%
6Jackson County221,3470%
7Deschutes County211,202+1.2%
8Linn County132,584+0.8%
9Douglas County112,351-0.1%
10Yamhill County110,065+1.1%
11Benton County97,590-0.4%
12Polk County90,205+0.1%
13Josephine County88,143+0.2%
14Umatilla County80,958+1%
15Klamath County70,371+0.1%
16Coos County64,242-0.5%
17Columbia County53,965+0.2%
18Lincoln County50,753-0.1%
19Clatsop County41,206+0.2%
20Malheur County32,371+0.3%
21Tillamook County27,422-0.1%
22Crook County27,320+1.4%
23Wasco County26,461+0.5%
24Union County25,9450%
25Jefferson County25,685+0.6%
26Hood River County23,733-0.3%
27Curry County22,820-2%
28Baker County16,757-0.8%
29Morrow County12,454+0.9%
30Lake County8,167-1.6%
31Wallowa County7,598-0.7%
32Harney County7,423-0.5%
33Grant County7,104-1.7%
34Sherman County2,015+2.6%
35Gilliam County1,984-2.4%
36Wheeler County1,454+1%

Other periods

About this ranking

Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). United States: Census Bureau population estimates for 1 July. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.

For Denmark, Statistics Denmark counts the registered resident population on 1 January. Greenland and the Faroe Islands are excluded. The annual series selects the first-quarter reference date from FOLK1A. The World Bank series exists for every country, so use it (through compare) to rank countries on one basis.

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. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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Questions

Which county has the highest population?

Multnomah County, with 794,472 in 2024, according to the U.S. Census Bureau.

Which county has the lowest population?

Wheeler County, with 1,454 in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). Retrieved 2026-10-08.

Population: other rankings

Counties in Oregon: more rankings