Washington Non-Hispanic White Alone Citizen Population By County in 2018 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2018, the Non-Hispanic White Alone citizen population for Washington was 3,187,680 and represented 47.17% of the total Washington citizen population.

Among all Washington counties, King had the highest Non-Hispanic White Alone citizen population (1.26M), followed by Pierce (574.17K), and Snohomish (542.80K).

In terms of percentages, Garfield had the highest percentage of its citizen population being Non-Hispanic White Alone (91.94%), followed by Lincoln (91.88%), and Asotin (91.54%).

The chart and table below shows the Non-Hispanic White Alone citizen population of each county and the percentage of each county's citizen population that were Non-Hispanic White Alone.

You can see similar information for other states and by state for the United States.

You can also see similar information for other ethnicities.

See this for other years:
Washington Non-Hispanic White Alone Citizen Population By County in 2018
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County Citizen Population % of County Citizen Population
King 1259345 65.98
Pierce 574165 69.78
Snohomish 542805 74.63
Spokane 417845 86.01
Clark 361765 81.46
Thurston 205560 77.23
Kitsap 200815 78.27
Whatcom 167925 81.56
Benton 135910 74.92
Yakima 108585 50.14
Skagit 91490 78.92
Cowlitz 87965 85.43
Island 64595 81.19
Lewis 64185 86.26
Clallam 61115 84.11
Grays Harbor 57075 81.44
Chelan 51295 73.08
Grant 51045 63.03
Mason 50560 84.27
Walla Walla 42935 76.58
Stevens 38025 87.07
Kittitas 37435 86.07
Whitman 37130 83.21
Franklin 36880 48.83
Jefferson 27080 89.62
Okanogan 27075 70.96
Douglas 26440 71.51
Asotin 20170 91.54
Klickitat 17505 86.30
Pacific 17380 85.11
San Juan 14395 90.59
Pend Oreille 11630 89.36
Skamania 10175 89.65
Lincoln 9505 91.88
Adams 6625 42.29
Ferry 5545 73.93
Wahkiakum 3695 89.47
Columbia 3425 88.05
Garfield 1995 91.94