Ranking of Oregon Counties By Percentage of Population with Other Groups Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 1.19M people in Oregon with Other Groups ancestry (28.16% of Oregon population). Among all Oregon counties, Morrow County had the highest percentage of its population with Other Groups ancestry (45.21%), followed by Umatilla County (38.37%), and Malheur County (37.77%).

The chart and table below shows the top 10 counties with high percentage of its population having Other Groups 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 Percentage of Population with Other Groups Ancestry in 2021
Morrow County
Umatilla County
Malheur County
Marion County
Hood River County
Washington County
Jefferson County
Multnomah County
Wasco County
Polk County
Ranking of Oregon Counties By Percentage of Population with Other Groups Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Morrow County 45.21
2 Umatilla County 38.37
3 Malheur County 37.77
4 Marion County 37.28
5 Hood River County 36.99
6 Washington County 35.09
7 Jefferson County 34.62
8 Multnomah County 32.30
9 Wasco County 27.58
10 Polk County 27.41
11 Klamath County 26.46
12 Yamhill County 26.39
13 Lane County 25.15
14 Harney County 24.94
15 Jackson County 24.66
16 Benton County 24.03
17 Clackamas County 22.58
18 Linn County 22.35
19 Lincoln County 22.27
20 Coos County 21.81
21 Wheeler County 21.80
22 Union County 21.66
23 Lake County 21.28
24 Tillamook County 20.50
25 Clatsop County 20.38
26 Douglas County 19.35
27 Curry County 19.16
28 Crook County 18.84
29 Deschutes County 18.61
30 Baker County 18.57
31 Sherman County 18.33
32 Columbia County 18.28
33 Josephine County 17.99
34 Wallowa County 17.48
35 Gilliam County 15.51
36 Grant County 13.77