Washington Natural Population Increase By County in 2020

Updated on June 30, 2022.

According to the US Census Bureau estimates, in 2020, the natural population increase for Washington was 22,674, and the top three counties that had the highest natural population increase were:

  1. King County: 9,489
  2. Snohomish County: 3,496
  3. Pierce County: 3,491

On the other hand, the top 3 counties that had the lowest natural population increase were:

  1. Clallam County: -576
  2. Jefferson County: -245
  3. Grays Harbor County: -230

Use the interactive visualization and the table below to explore the natural population increase for each Washington county in 2020. You can also find links to the historical natural population increase for each county below.

Natural Population Increase refers to the number of births minuse the number of deaths.

See this information for other years:
Washington Natural Population Increase By County in 2020
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County Natural Pop. Increase
Adams 259
Asotin -62
Benton 967
Chelan 119
Clallam -576
Clark 1414
Columbia -19
Cowlitz -19
Douglas 129
Ferry -17
Franklin 1044
Garfield -4
Grant 720
Grays Harbor -230
Island 68
Jefferson -245
King 9489
Kitsap 354
Kittitas 44
Klickitat -17
Lewis -56
Lincoln -21
Mason -100
Okanogan -61
Pacific -191
Pend Oreille -48
Pierce 3491
San Juan -53
Skagit 32
Skamania -20
Snohomish 3496
Spokane 716
Stevens -104
Thurston 514
Wahkiakum -28
Walla Walla -7
Whatcom 191
Whitman 84
Yakima 1421