RANKING · 2020 CENSUS · 37 SHOWN OF 37

Highest Finnish population share, Idaho counties · 2020

Idaho counties ranked by the share of all residents who are Finnish ancestry (2023 American Community Survey). A concentration measure: Finnish residents as a percentage of total population. This list covers the 37 counties in Idaho that qualify, ranked against each other statewide.

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

YEAR2010 2020 2024

RANKPLACESTATEPOPFINNISH SHAREVS 2000

01Shoshone County, IDID14,1302.2%–

02Owyhee County, IDID12,6611.0%–

03Clearwater County, IDID9,1181.0%–

04Blaine County, IDID25,5170.9%–

05Valley County, IDID12,8310.9%–

06Latah County, IDID41,8420.9%–

07Idaho County, IDID17,8740.9%–

08Boundary County, IDID13,9970.8%–

09Bonner County, IDID54,4200.8%–

10Caribou County, IDID7,2520.7%–

11Gooding County, IDID16,4460.7%–

12Lewis County, IDID3,7040.7%–

13Bonneville County, IDID135,7710.6%–

14Teton County, IDID13,2540.6%–

15Lincoln County, IDID5,6030.5%–

16Nez Perce County, IDID42,9050.4%–

17Custer County, IDID4,6360.4%–

18Franklin County, IDID15,8890.4%–

19Bannock County, IDID91,5910.4%–

20Bingham County, IDID51,1530.3%–

21Kootenai County, IDID191,8640.3%–

22Gem County, IDID21,7730.3%–

23Adams County, IDID5,0130.3%–

24Payette County, IDID27,8240.2%–

25Elmore County, IDID29,4650.2%–

26Ada County, IDID546,1410.2%–

27Boise County, IDID8,5450.2%–

28Canyon County, IDID275,1230.2%–

29Bear Lake County, IDID6,7270.1%–

30Benewah County, IDID10,5080.1%–

31Twin Falls County, IDID97,5390.1%–

32Lemhi County, IDID8,4740.1%–

33Madison County, IDID55,1720.1%–

34Cassia County, IDID26,3970.1%–

35Washington County, IDID11,5830.0%–

36Butte County, IDID2,7830.0%–

37Jefferson County, IDID35,2970.0%–

SHOWING 1–37 OF 37

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES