Ranking of Oregon Counties By Population with Irish Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 463.72K people in Oregon with Irish ancestry. Among all Oregon counties, Multnomah County had the highest population with Irish ancestry (87.98K), followed by Washington County (55.63K), and Lane County (52.29K).
The chart and table below shows the top 10 counties with high number of people with Irish ancestry.
You can see similar information for other states and for other ancestry groups in Oregon.
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Related Topics: Oregon ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Oregon Counties By Population with Irish Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Multnomah County | 87975 |
| 2 | Washington County | 55629 |
| 3 | Lane County | 52289 |
| 4 | Clackamas County | 46254 |
| 5 | Marion County | 30807 |
| 6 | Jackson County | 27766 |
| 7 | Deschutes County | 27364 |
| 8 | Douglas County | 14260 |
| 9 | Linn County | 13531 |
| 10 | Yamhill County | 12021 |
| 11 | Josephine County | 11853 |
| 12 | Benton County | 10555 |
| 13 | Polk County | 8019 |
| 14 | Coos County | 7703 |
| 15 | Klamath County | 7609 |
| 16 | Umatilla County | 6498 |
| 17 | Columbia County | 6157 |
| 18 | Lincoln County | 6009 |
| 19 | Clatsop County | 4719 |
| 20 | Tillamook County | 3471 |
| 21 | Curry County | 3400 |
| 22 | Malheur County | 2568 |
| 23 | Union County | 2557 |
| 24 | Crook County | 2514 |
| 25 | Wasco County | 2475 |
| 26 | Jefferson County | 1786 |
| 27 | Hood River County | 1757 |
| 28 | Baker County | 1452 |
| 29 | Lake County | 1131 |
| 30 | Morrow County | 1065 |
| 31 | Harney County | 747 |
| 32 | Wallowa County | 650 |
| 33 | Grant County | 478 |
| 34 | Gilliam County | 270 |
| 35 | Wheeler County | 227 |
| 36 | Sherman County | 152 |