RANKING · 2010 CENSUS · 56 SHOWN OF 56

Largest foreign-born population, Montana counties · 2010

Montana counties with the most residents born outside the United States, as of the 2010 American Community Survey. Ranked by number of people, not share. This list covers the 56 counties in Montana that qualify, ranked against each other statewide.

MontanaAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPFOREIGN-BORN POPULATIONVS –

01Gallatin County, MTMT128,7402,731–

02Missoula County, MTMT123,5132,613–

03Yellowstone County, MTMT172,6922,455–

04Flathead County, MTMT115,4291,835–

05Cascade County, MTMT85,0291,775–

06Lewis and Clark County, MTMT75,3311,267–

07Silver Bow County, MTMT36,118724–

08Ravalli County, MTMT48,582675–

09Lake County, MTMT33,392583–

10Park County, MTMT18,214463–

11Lincoln County, MTMT22,328434–

12Madison County, MTMT10,026341–

13Hill County, MTMT16,167236–

14Beaverhead County, MTMT10,043234–

15Carbon County, MTMT11,466214–

16Toole County, MTMT5,211194–

17Richland County, MTMT11,377191–

18Glacier County, MTMT13,463186–

19Sanders County, MTMT14,062165–

20Jefferson County, MTMT13,329148–

21Pondera County, MTMT6,072141–

22Teton County, MTMT6,496140–

23Valley County, MTMT7,385133–

24Custer County, MTMT12,034129–

25Stillwater County, MTMT9,445113–

26Fergus County, MTMT11,825111–

27Musselshell County, MTMT5,582110–

28Deer Lodge County, MTMT9,70991–

29Chouteau County, MTMT5,86587–

30Big Horn County, MTMT12,75286–

31Sweet Grass County, MTMT3,76281–

32Powell County, MTMT7,15775–

33Roosevelt County, MTMT10,24270–

34Meagher County, MTMT2,13768–

35Rosebud County, MTMT8,25361–

36Liberty County, MTMT1,95758–

37Sheridan County, MTMT3,43655–

38Fallon County, MTMT2,95946–

39Mineral County, MTMT5,18546–

40Dawson County, MTMT8,69241–

41Broadwater County, MTMT8,49338–

42Phillips County, MTMT4,20335–

43Blaine County, MTMT6,86032–

44Daniels County, MTMT1,61228–

45Judith Basin County, MTMT2,16224–

46Granite County, MTMT3,65819–

47Wibaux County, MTMT88515–

48Prairie County, MTMT1,1129–

49Treasure County, MTMT7288–

50McCone County, MTMT1,7206–

51Powder River County, MTMT1,7816–

52Carter County, MTMT1,3834–

53Garfield County, MTMT1,1481–

54Golden Valley County, MTMT8441–

55Petroleum County, MTMT5480–

56Wheatland County, MTMT2,1000–

SHOWING 1–56 OF 56

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