RANKING · 2020 CENSUS · 38 SHOWN OF 38

Largest Czech population, Washington counties · 2020

Washington counties ranked by the number of residents who are Czech ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 38 counties in Washington that qualify, ranked against each other statewide. The median across all 38 is 283.

Czech Americans: full group profile →

WashingtonAll states All rankings

SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPCZECH POPULATIONVS 2010

01King County, WAWA2,344,9399,769−7%

02Pierce County, WAWA946,2883,483+4%

03Snohomish County, WAWA870,6563,0390%

04Spokane County, WAWA558,3442,495−11%

05Clark County, WAWA532,1191,569−25%

06Kitsap County, WAWA283,3741,491+24%

07Whatcom County, WAWA236,392864−10%

08Thurston County, WAWA304,261809−23%

09Benton County, WAWA221,722658−12%

10Skagit County, WAWA132,975475+8%

11Kittitas County, WAWA48,803427−1%

12Chelan County, WAWA81,941394+102%

13Whitman County, WAWA48,512371+51%

14Cowlitz County, WAWA114,885365+1%

15Yakima County, WAWA259,185349−31%

16Clallam County, WAWA78,202333−12%

17Douglas County, WAWA46,473314+205%

18Grant County, WAWA105,727290+48%

19Lewis County, WAWA88,062283+9%

20Island County, WAWA85,657273−51%

21Jefferson County, WAWA33,970270−17%

22Pend Oreille County, WAWA14,457199+206%

23Walla Walla County, WAWA62,361194+39%

24Stevens County, WAWA49,668192−19%

25Franklin County, WAWA102,612178+125%

26Klickitat County, WAWA24,331171+30%

27Mason County, WAWA71,165136−68%

28San Juan County, WAWA18,577116+16%

29Okanogan County, WAWA45,230114−22%

30Lincoln County, WAWA11,98279−11%

31Grays Harbor County, WAWA78,14473−66%

32Pacific County, WAWA24,35745−50%

33Wahkiakum County, WAWA4,87328–

34Adams County, WAWA21,48827−31%

35Skamania County, WAWA12,66913−80%

36Asotin County, WAWA22,54511−58%

37Ferry County, WAWA7,51710−44%

38Garfield County, WAWA2,4161−86%

SHOWING 1–38 OF 38

Download CSV (full list, 38 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS