Washington Population By County in 2019

Updated on January 27, 2024.

Based on the US Census Vintage data estimates, in 2019, the population of Washington was 7,614,024. Among all Washington counties, King had the highest population (2,249,653), followed by Pierce (905,719), and Snohomish (822,413). Garfield was the least populated county (2,266).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

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

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Washington Population By County in 2019
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County Population % of State Population
Adams 19959 0.26
Asotin 22687 0.30
Benton 204173 2.68
Chelan 77053 1.01
Clallam 77457 1.02
Clark 489271 6.43
Columbia 4023 0.05
Cowlitz 110389 1.45
Douglas 43251 0.57
Ferry 7676 0.10
Franklin 95446 1.25
Garfield 2266 0.03
Grant 97959 1.29
Grays Harbor 75047 0.99
Island 85344 1.12
Jefferson 32347 0.43
King 2249653 29.55
Kitsap 272299 3.58
Kittitas 47856 0.63
Klickitat 22433 0.30
Lewis 80599 1.06
Lincoln 10938 0.14
Mason 66939 0.88
Okanogan 42403 0.56
Pacific 22517 0.30
Pend Oreille 13726 0.18
Pierce 905719 11.90
San Juan 17352 0.23
Skagit 129181 1.70
Skamania 12096 0.16
Snohomish 822413 10.80
Spokane 522231 6.86
Stevens 45815 0.60
Thurston 289661 3.80
Wahkiakum 4420 0.06
Walla Walla 61062 0.80
Whatcom 228675 3.00
Whitman 50136 0.66
Yakima 251552 3.30