RANKING · 2020 CENSUS · 37 SHOWN OF 37

Largest Finnish population, Idaho counties · 2020

Idaho counties ranked by the number of residents who are Finnish 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 37 counties in Idaho that qualify, ranked against each other statewide.

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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

RANKPLACESTATEPOPFINNISH POPULATIONVS 2010

01Ada County, IDID546,1411,030−17%

02Bonneville County, IDID135,771687+151%

03Kootenai County, IDID191,864494−29%

04Canyon County, IDID275,123367−20%

05Latah County, IDID41,842350+150%

06Bonner County, IDID54,420344+39%

07Bannock County, IDID91,591306+40%

08Shoshone County, IDID14,130275+19%

09Blaine County, IDID25,517207+34%

10Nez Perce County, IDID42,905179−36%

11Bingham County, IDID51,153148+63%

12Idaho County, IDID17,874142+735%

13Owyhee County, IDID12,661123–

14Gooding County, IDID16,446110+1122%

15Twin Falls County, IDID97,53999+22%

16Valley County, IDID12,83198+38%

17Boundary County, IDID13,99797+47%

18Clearwater County, IDID9,11883−11%

19Teton County, IDID13,25466+313%

20Elmore County, IDID29,46562+27%

21Payette County, IDID27,82459+97%

22Caribou County, IDID7,25251+325%

23Franklin County, IDID15,88951–

24Gem County, IDID21,77347−75%

25Lewis County, IDID3,70426+24%

26Lincoln County, IDID5,60325+108%

27Madison County, IDID55,17224+0%

28Custer County, IDID4,63616−74%

29Boise County, IDID8,54515−79%

30Cassia County, IDID26,39712−48%

31Adams County, IDID5,01311−48%

32Benewah County, IDID10,50811−84%

33Bear Lake County, IDID6,7279–

34Lemhi County, IDID8,4749–

35Jefferson County, IDID35,2975−88%

36Washington County, IDID11,5834−69%

37Butte County, IDID2,7831–

SHOWING 1–37 OF 37

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS