Ranking of Washington Counties By Population with Scotch Irish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 81.32K people in Washington with Scotch Irish ancestry. Among all Washington counties, King County had the highest population with Scotch Irish ancestry (22.46K), followed by Snohomish County (9.61K), and Pierce County (7.87K).

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

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

You may also be interested in:
Ranking of Washington Counties By Percentage of Population with Scotch Irish Ancestry in 2021

Related Topics: Washington ACS-5Yrs Estimates, 2021 Topic List.

Data Source: US Census Bureau.

Ranking of Washington Counties By Population with Scotch Irish Ancestry in 2021

King County

Snohomish County

Pierce County

Spokane County

Clark County

Kitsap County

Thurston County

Whatcom County

Benton County

Skagit County

Ranking of Washington Counties By Population with Scotch Irish Ancestry in 2021

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Rank	County	Population
1	King County	22462
2	Snohomish County	9612
3	Pierce County	7873
4	Spokane County	6710
5	Clark County	6041
6	Kitsap County	3723
7	Thurston County	3163
8	Whatcom County	2608
9	Benton County	1904
10	Skagit County	1832
11	Yakima County	1781
12	Mason County	1324
13	Cowlitz County	1181
14	Clallam County	1177
15	Lewis County	1068
16	Island County	987
17	Chelan County	842
18	Grays Harbor County	740
19	Walla Walla County	664
20	Grant County	575
21	Jefferson County	515
22	Kittitas County	509
23	Stevens County	469
24	Franklin County	453
25	Klickitat County	448
26	Okanogan County	395
27	Pacific County	367
28	Whitman County	339
29	San Juan County	331
30	Douglas County	230
31	Asotin County	208
32	Pend Oreille County	188
33	Skamania County	156
34	Ferry County	113
35	Adams County	95
36	Lincoln County	87
37	Columbia County	71
38	Wahkiakum County	55
39	Garfield County	28