Washington Citizen Population By County in 2014 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2014, the citizen population for Washington was 6,405,630 and represented 92.85% of the total Washington population.

Among all Washington counties, King had the highest citizen population (1.79M), followed by Pierce (776.17K), and Snohomish (683.20K).

In terms of percentages, Garfield had the highest percentage of its population being citizens (99.78%), followed by Asotin (99.41%), and Pend Oreille (99.27%).

The chart and table below shows the citizen population of each county and the percentage of each county's population that were citizens.

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

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Washington Citizen Population By County in 2014
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County Citizen Population % of County Population
King 1791395 89.17
Pierce 776170 95.51
Snohomish 683195 92.91
Spokane 463835 97.25
Clark 417020 95.15
Thurston 250320 96.53
Kitsap 247430 97.56
Yakima 212435 86.22
Whatcom 193930 94.67
Benton 170265 93.52
Skagit 111065 93.83
Cowlitz 99520 97.50
Grant 77790 85.05
Island 77035 97.57
Lewis 72855 96.65
Clallam 70485 97.86
Franklin 69100 81.77
Grays Harbor 68795 95.90
Chelan 68170 92.54
Mason 58430 96.21
Walla Walla 54750 92.06
Stevens 42960 98.67
Whitman 42760 92.95
Kittitas 40190 96.37
Okanogan 38025 92.20
Douglas 34295 87.52
Jefferson 29595 98.72
Asotin 21825 99.41
Pacific 19975 96.66
Klickitat 19960 96.57
San Juan 15335 96.78
Adams 15070 79.53
Pend Oreille 12870 99.27
Skamania 10830 96.74
Lincoln 10325 99.18
Ferry 7460 97.45
Columbia 3975 98.64
Wahkiakum 3955 98.51
Garfield 2235 99.78