Ranking of Washington Counties By Population with Czech Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 29.18K people in Washington with Czech ancestry. Among all Washington counties, King County had the highest population with Czech ancestry (9.80K), followed by Pierce County (3.38K), and Snohomish County (2.49K).

The chart and table below shows the top 10 counties with high number of people with Czech ancestry.

You can see similar information for other states and for other ancestry groups in Washington.

Data Source: US Census Bureau.
Ranking of Washington Counties By Population with Czech Ancestry in 2021
King County
Pierce County
Snohomish County
Spokane County
Clark County
Kitsap County
Benton County
Thurston County
Whatcom County
Yakima County
Ranking of Washington Counties By Population with Czech Ancestry in 2021
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Rank County Population
1 King County 9801
2 Pierce County 3375
3 Snohomish County 2491
4 Spokane County 2457
5 Clark County 1788
6 Kitsap County 1429
7 Benton County 831
8 Thurston County 800
9 Whatcom County 734
10 Yakima County 423
11 Kittitas County 422
12 Skagit County 414
13 Chelan County 408
14 Whitman County 356
15 Cowlitz County 317
16 Jefferson County 280
17 Island County 269
18 Walla Walla County 267
19 Clallam County 265
20 Douglas County 253
21 Mason County 223
22 Lewis County 218
23 Grant County 216
24 Klickitat County 201
25 Franklin County 191
26 Stevens County 187
27 San Juan County 150
28 Pend Oreille County 148
29 Grays Harbor County 50
30 Lincoln County 39
31 Pacific County 38
32 Wahkiakum County 30
33 Okanogan County 29
34 Garfield County 24
35 Adams County 23
36 Asotin County 11
37 Ferry County 9
37 Skamania County 9