Ranking of Washington Counties By Percentage of Population with American Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 282.34K people in Washington with American ancestry (3.71% of Washington population). Among all Washington counties, Lincoln County had the highest percentage of its population with American ancestry (32.35%), followed by Stevens County (11.36%), and Skamania County (10.33%).

The chart and table below shows the top 10 counties with high percentage of its population having American ancestry.

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

Data Source: US Census Bureau.
Ranking of Washington Counties By Percentage of Population with American Ancestry in 2021
Lincoln County
Stevens County
Skamania County
Okanogan County
Klickitat County
Chelan County
Columbia County
Garfield County
Walla Walla County
Asotin County
Ranking of Washington Counties By Percentage of Population with American Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Lincoln County 32.35
2 Stevens County 11.36
3 Skamania County 10.33
4 Okanogan County 9.17
5 Klickitat County 8.53
6 Chelan County 7.07
7 Columbia County 6.78
8 Garfield County 6.01
9 Walla Walla County 5.74
10 Asotin County 5.22
11 Spokane County 5.08
12 Lewis County 4.98
13 Wahkiakum County 4.80
14 Benton County 4.75
15 Cowlitz County 4.57
16 Island County 4.54
17 Mason County 4.43
18 Clark County 4.36
19 Grant County 4.35
20 Clallam County 4.29
21 Jefferson County 4.23
22 Douglas County 4.21
23 Kitsap County 4.05
24 Whitman County 3.99
25 Thurston County 3.98
26 Skagit County 3.87
27 Pierce County 3.72
28 Pend Oreille County 3.67
29 Kittitas County 3.44
30 Grays Harbor County 3.33
31 Snohomish County 3.18
32 Yakima County 3.12
33 Adams County 3.06
33 Pacific County 3.06
34 Whatcom County 2.94
35 King County 2.59
36 Franklin County 2.57
37 San Juan County 2.44
38 Ferry County 1.90