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RANKING · 2020 CENSUS · 39 SHOWN OF 39

Highest Irish population share, Washington counties · 2020

Washington counties ranked by the share of all residents who are Irish ancestry (2020 American Community Survey). A concentration measure: Irish residents as a percentage of total population. This list covers the 39 counties in Washington that qualify, ranked against each other statewide. The median across all 39 is 10.5%.

Irish Americans: full group profile →
SAME RANKING BYCitiesStatesMetros
Highest Irish population share by state
All USAlaskaAlabamaArkansasArizonaCaliforniaColoradoFloridaGeorgiaIowaIdahoIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiMontanaNorth CarolinaNorth DakotaNebraskaNew HampshireNew JerseyNew MexicoNevadaNew YorkOhioOklahomaOregonPennsylvaniaSouth CarolinaSouth DakotaTennesseeTexasUtahVirginiaVermontWashingtonWisconsinWest VirginiaWyoming
RANKPLACESTATEPOPIRISH SHAREVS 2010
01Ferry County, WAWA7,51715.7%+3.4 pts
02Jefferson County, WAWA33,97013.7%−0.2 pts
03Cowlitz County, WAWA114,88513.6%−1.4 pts
04Kitsap County, WAWA283,37413.6%−0.9 pts
05Spokane County, WAWA558,34413.3%−2.1 pts
06Klickitat County, WAWA24,33113.2%+0.5 pts
07San Juan County, WAWA18,57713.0%−1.1 pts
08Lewis County, WAWA88,06212.9%−2.0 pts
09Grays Harbor County, WAWA78,14412.7%−0.8 pts
10Island County, WAWA85,65712.7%−1.7 pts
11Thurston County, WAWA304,26112.3%−0.9 pts
12Mason County, WAWA71,16512.0%−1.5 pts
13Clallam County, WAWA78,20211.7%−0.9 pts
14Garfield County, WAWA2,41611.5%−8.4 pts
15Skamania County, WAWA12,66911.1%−4.6 pts
16Okanogan County, WAWA45,23011.0%−1.4 pts
17Stevens County, WAWA49,66810.9%−3.2 pts
18Pacific County, WAWA24,35710.8%−1.1 pts
19Clark County, WAWA532,11910.8%−2.4 pts
20Benton County, WAWA221,72210.5%−2.1 pts
21Skagit County, WAWA132,97510.4%−1.0 pts
22Pend Oreille County, WAWA14,45710.3%−5.5 pts
23Kittitas County, WAWA48,80310.3%−5.1 pts
24Pierce County, WAWA946,28810.2%−2.9 pts
25Asotin County, WAWA22,54510.2%−4.7 pts
26Douglas County, WAWA46,47310.2%+0.7 pts
27Snohomish County, WAWA870,6569.9%−2.7 pts
28Walla Walla County, WAWA62,3619.7%−3.0 pts
29Whatcom County, WAWA236,3929.3%−3.5 pts
30Columbia County, WAWA4,1419.2%−3.1 pts
31Wahkiakum County, WAWA4,8739.1%+2.3 pts
32King County, WAWA2,344,9398.9%−2.2 pts
33Whitman County, WAWA48,5128.8%−4.6 pts
34Chelan County, WAWA81,9418.4%0.0 pts
35Lincoln County, WAWA11,9828.3%−6.3 pts
36Grant County, WAWA105,7275.9%−1.2 pts
37Franklin County, WAWA102,6125.7%−0.8 pts
38Yakima County, WAWA259,1855.4%−1.9 pts
39Adams County, WAWA21,4884.0%−2.8 pts
SHOWING 1–39 OF 39

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