RANKING · 2020 CENSUS · 48 SHOWN OF 48

Largest Swiss population, Montana counties · 2020

Montana counties ranked by the number of residents who are Swiss 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 48 counties in Montana 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

RANKPLACESTATEPOPSWISS POPULATIONVS 2010

01Gallatin County, MTMT128,740850+23%

02Missoula County, MTMT123,513651−15%

03Flathead County, MTMT115,429649−25%

04Yellowstone County, MTMT172,692483−30%

05Ravalli County, MTMT48,582387−2%

06Cascade County, MTMT85,029311−30%

07Lewis and Clark County, MTMT75,331289−2%

08Lincoln County, MTMT22,328175+62%

09Park County, MTMT18,214122−49%

10Sanders County, MTMT14,062111+5%

11Lake County, MTMT33,392107−49%

12Silver Bow County, MTMT36,118106+56%

13Rosebud County, MTMT8,25391+1417%

14Jefferson County, MTMT13,32983−37%

15Broadwater County, MTMT8,49382–

16Custer County, MTMT12,03476−5%

17Meagher County, MTMT2,13764+220%

18Stillwater County, MTMT9,44562+44%

19Madison County, MTMT10,02660−42%

20Dawson County, MTMT8,69254+86%

21Carbon County, MTMT11,46652−39%

22Treasure County, MTMT72849+717%

23Beaverhead County, MTMT10,04348−71%

24Sheridan County, MTMT3,43647+1467%

25Fergus County, MTMT11,82543+26%

26Pondera County, MTMT6,07239+39%

27Teton County, MTMT6,49635−74%

28Big Horn County, MTMT12,75232+88%

29Sweet Grass County, MTMT3,76231+11%

30Musselshell County, MTMT5,58221−5%

31Deer Lodge County, MTMT9,70919+0%

32Hill County, MTMT16,16717−80%

33Roosevelt County, MTMT10,24216+100%

34Granite County, MTMT3,65816+100%

35Garfield County, MTMT1,14814+100%

36McCone County, MTMT1,72014−39%

37Powell County, MTMT7,15714−13%

38Glacier County, MTMT13,46313−59%

39Chouteau County, MTMT5,86511−58%

40Toole County, MTMT5,2115−74%

41Judith Basin County, MTMT2,1625−29%

42Blaine County, MTMT6,8604−20%

43Mineral County, MTMT5,1854−88%

44Valley County, MTMT7,3854−64%

45Powder River County, MTMT1,7813−67%

46Wheatland County, MTMT2,1003−90%

47Richland County, MTMT11,3772−98%

48Carter County, MTMT1,3831−91%

SHOWING 1–48 OF 48

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