Washington Natural Population Increase By County in 2018

Updated on June 30, 2022.

According to the US Census Bureau estimates, in 2018, the natural population increase for Washington was 29,914, and the top three counties that had the highest natural population increase were:

  1. King County: 11,733
  2. Pierce County: 4,515
  3. Snohomish County: 4,218

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

  1. Clallam County: -392
  2. Jefferson County: -218
  3. Pacific County: -175

Use the interactive visualization and the table below to explore the natural population increase for each Washington county in 2018. 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 2018
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County Natural Pop. Increase
Adams 281
Asotin -33
Benton 1031
Chelan 128
Clallam -392
Clark 1946
Columbia -18
Cowlitz 42
Douglas 209
Ferry -10
Franklin 1182
Garfield -22
Grant 735
Grays Harbor -144
Island 103
Jefferson -218
King 11733
Kitsap 703
Kittitas 95
Klickitat 22
Lewis -69
Lincoln -29
Mason -47
Okanogan 29
Pacific -175
Pend Oreille -55
Pierce 4515
San Juan -55
Skagit 161
Skamania 15
Snohomish 4218
Spokane 979
Stevens -40
Thurston 731
Wahkiakum -13
Walla Walla 16
Whatcom 597
Whitman 96
Yakima 1667