Ranking of Oregon Counties By Population with Scotch Irish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 50.62K people in Oregon with Scotch Irish ancestry. Among all Oregon counties, Multnomah County had the highest population with Scotch Irish ancestry (8.56K), followed by Washington County (5.87K), and Lane County (5.43K).

The chart and table below shows the top 10 counties with high number of people with Scotch Irish ancestry.

You can see similar information for other states and for other ancestry groups in Oregon.

Data Source: US Census Bureau.
Ranking of Oregon Counties By Population with Scotch Irish Ancestry in 2021
Multnomah County
Washington County
Lane County
Clackamas County
Jackson County
Marion County
Douglas County
Deschutes County
Linn County
Benton County
Ranking of Oregon Counties By Population with Scotch Irish Ancestry in 2021
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Rank County Population
1 Multnomah County 8563
2 Washington County 5874
3 Lane County 5425
4 Clackamas County 4019
5 Jackson County 3439
6 Marion County 3288
7 Douglas County 2626
8 Deschutes County 2420
9 Linn County 1847
10 Benton County 1529
11 Yamhill County 1326
12 Josephine County 1186
13 Lincoln County 1081
14 Coos County 1038
15 Klamath County 800
16 Columbia County 719
17 Polk County 678
18 Umatilla County 659
19 Wasco County 563
20 Clatsop County 525
21 Baker County 422
22 Tillamook County 333
23 Union County 310
24 Malheur County 277
25 Curry County 272
26 Hood River County 252
27 Crook County 240
28 Wallowa County 195
29 Grant County 182
30 Lake County 135
31 Harney County 134
32 Jefferson County 131
33 Morrow County 71
34 Wheeler County 30
35 Gilliam County 13
35 Sherman County 13