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

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 819.72K people in Washington with English ancestry (10.76% of Washington population). Among all Washington counties, Wahkiakum County had the highest percentage of its population with English ancestry (17.22%), followed by San Juan County (16.79%), and Jefferson County (16.47%).

The chart and table below shows the top 10 counties with high percentage of its population having English 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 English Ancestry in 2021
Wahkiakum County
San Juan County
Jefferson County
Clallam County
Lewis County
Island County
Pend Oreille County
Benton County
Skamania County
Columbia County
Ranking of Washington Counties By Percentage of Population with English Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Wahkiakum County 17.22
2 San Juan County 16.79
3 Jefferson County 16.47
4 Clallam County 15.35
5 Lewis County 13.74
6 Island County 13.58
6 Pend Oreille County 13.58
7 Benton County 13.35
8 Skamania County 13.25
9 Columbia County 13.08
10 Kitsap County 12.79
11 Mason County 12.64
12 Cowlitz County 12.63
13 Spokane County 12.56
14 Skagit County 12.47
15 Kittitas County 12.20
16 Klickitat County 12.13
17 Asotin County 12.03
18 Stevens County 11.81
19 Thurston County 11.78
20 Pacific County 11.71
20 Whatcom County 11.71
21 Clark County 11.61
22 Walla Walla County 11.41
23 Garfield County 10.84
24 Ferry County 10.82
25 Douglas County 10.69
26 Snohomish County 10.66
27 Chelan County 10.38
27 Whitman County 10.38
28 King County 10.00
29 Grays Harbor County 9.75
30 Pierce County 9.68
31 Okanogan County 9.32
32 Lincoln County 7.99
33 Grant County 7.89
34 Franklin County 6.46
35 Yakima County 6.11
36 Adams County 5.25