Data / Rankings / Foreign-born population share / Counties in Oregon

Counties in Oregon by foreign-born share of the population

Washington County had the highest foreign-born share of the population of 36 counties in 2021, at 17.9%. Sherman County had the lowest, at 1.4%. The median was 5% and the figure for Oregon was 9.8%. Source: the U.S. Census Bureau.

Highest17.9Washington County
Lowest1.4Sherman County
Median536 counties
Oregon9.8History

All counties, 2021

CSVChart (SVG)

Washington CountyWashington County: 17.9 %17.9Morrow CountyMorrow County: 17.9 %17.9Hood River CountyHood River County: 15.6 %15.6Multnomah CountyMultnomah County: 13.5 %13.5Marion CountyMarion County: 12.7 %12.7Benton CountyBenton County: 9.9 %9.9Malheur CountyMalheur County: 9.8 %9.8Umatilla CountyUmatilla County: 9.3 %9.3Wasco CountyWasco County: 9.2 %9.2Clackamas CountyClackamas County: 8.5 %8.5Yamhill CountyYamhill County: 7.6 %7.6Jefferson CountyJefferson County: 6.7 %6.7Polk CountyPolk County: 6.6 %6.6Lake CountyLake County: 6.2 %6.2Jackson CountyJackson County: 6.1 %6.1Curry CountyCurry County: 5.8 %5.8Lane CountyLane County: 5.6 %5.6Deschutes CountyDeschutes County: 5.1 %5.1Tillamook CountyTillamook County: 5 %5Klamath CountyKlamath County: 5 %5Clatsop CountyClatsop County: 4.8 %4.8Lincoln CountyLincoln County: 4.7 %4.7Wheeler CountyWheeler County: 4.7 %4.7Josephine CountyJosephine County: 4 %4Linn CountyLinn County: 4 %4Coos CountyCoos County: 3.7 %3.7Union CountyUnion County: 2.9 %2.9Douglas CountyDouglas County: 2.7 %2.7Columbia CountyColumbia County: 2.6 %2.6Gilliam CountyGilliam County: 2.4 %2.4Crook CountyCrook County: 2.3 %2.3Wallowa CountyWallowa County: 2.3 %2.3Grant CountyGrant County: 2.1 %2.1Harney CountyHarney County: 1.8 %1.8Baker CountyBaker County: 1.8 %1.8Sherman CountySherman County: 1.4 %1.4
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2021 (%)
1Washington County17.9
2Morrow County17.9
3Hood River County15.6
4Multnomah County13.5
5Marion County12.7
6Benton County9.9
7Malheur County9.8
8Umatilla County9.3
9Wasco County9.2
10Clackamas County8.5
11Yamhill County7.6
12Jefferson County6.7
13Polk County6.6
14Lake County6.2
15Jackson County6.1
16Curry County5.8
17Lane County5.6
18Deschutes County5.1
19Tillamook County5
20Klamath County5
21Clatsop County4.8
22Lincoln County4.7
23Wheeler County4.7
24Josephine County4
25Linn County4
26Coos County3.7
27Union County2.9
28Douglas County2.7
29Columbia County2.6
30Gilliam County2.4
31Crook County2.3
32Wallowa County2.3
33Grant County2.1
34Harney County1.8
35Baker County1.8
36Sherman County1.4

Other periods

About this ranking

People who were not US citizens at birth, as a percentage of the total population. Includes naturalized citizens, lawful permanent residents, temporary migrants and unauthorized immigrants. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Based on place of birth, not nationality: a naturalized citizen counts as foreign born, and people born in Puerto Rico, the US island areas or abroad to American parents count as native. Not comparable with foreign_population_share, which counts foreign nationals in Spain and the EU. Calculated from counts in ACS table B05002, which are stored as inputs.

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. American Community Survey 5-year estimates, table B05002: foreign-born population as a percentage of the total population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b05002.dat. Retrieved 2026-10-09.

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Rank Counties in Oregon by foreign-born share of the population using official data, and cite the source.
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Questions

Which county has the highest foreign-born share of the population?

Washington County, with 17.9% in 2021, according to the U.S. Census Bureau.

Which county has the lowest foreign-born share of the population?

Sherman County, with 1.4% in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B05002: foreign-born population as a percentage of the total population, calculated with stored inputs. Retrieved 2026-10-09.

Foreign-born population share: other rankings

Counties in Oregon: more rankings