RANKING · 2024 ACS · 56 SHOWN OF 56

Largest foreign-born population, Montana counties

Montana counties with the most residents born outside the United States, as of the 2024 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 2010

01Gallatin County, MTMT128,7405,075+86%

02Missoula County, MTMT123,5133,473+33%

03Yellowstone County, MTMT172,6923,248+32%

04Flathead County, MTMT115,4293,114+70%

05Cascade County, MTMT85,0291,933+9%

06Lewis and Clark County, MTMT75,3311,374+8%

07Ravalli County, MTMT48,5821,052+56%

08Lake County, MTMT33,392758+30%

09Lincoln County, MTMT22,328547+26%

10Park County, MTMT18,214443−4%

11Silver Bow County, MTMT36,118439−39%

12Richland County, MTMT11,377345+81%

13Madison County, MTMT10,026254−26%

14Fergus County, MTMT11,825253+128%

15Sanders County, MTMT14,062224+36%

16Toole County, MTMT5,211215+11%

17Rosebud County, MTMT8,253185+203%

18Powell County, MTMT7,157165+120%

19Hill County, MTMT16,167163−31%

20Custer County, MTMT12,034157+22%

21Beaverhead County, MTMT10,043155−34%

22Jefferson County, MTMT13,329128−14%

23Stillwater County, MTMT9,445117+4%

24Blaine County, MTMT6,860115+259%

25Phillips County, MTMT4,203110+214%

26Big Horn County, MTMT12,752109+27%

27Glacier County, MTMT13,463107−42%

28Pondera County, MTMT6,072106−25%

29Sheridan County, MTMT3,436100+82%

30Valley County, MTMT7,38591−32%

31Musselshell County, MTMT5,58290−18%

32Chouteau County, MTMT5,86588+1%

33Roosevelt County, MTMT10,24288+26%

34Granite County, MTMT3,65876+300%

35Mineral County, MTMT5,18576+65%

36Carbon County, MTMT11,46669−68%

37Broadwater County, MTMT8,49362+63%

38Wibaux County, MTMT88562+313%

39Liberty County, MTMT1,95756−3%

40Fallon County, MTMT2,95952+13%

41Prairie County, MTMT1,11250+456%

42Judith Basin County, MTMT2,16247+96%

43Sweet Grass County, MTMT3,76247−42%

44Dawson County, MTMT8,69239−5%

45Deer Lodge County, MTMT9,70936−60%

46Daniels County, MTMT1,61235+25%

47Wheatland County, MTMT2,10030–

48Teton County, MTMT6,49626−81%

49Powder River County, MTMT1,78125+317%

50McCone County, MTMT1,72021+250%

51Meagher County, MTMT2,13719−72%

52Treasure County, MTMT72812+50%

53Golden Valley County, MTMT8449+800%

54Carter County, MTMT1,3835+25%

55Petroleum County, MTMT5484–

56Garfield County, MTMT1,1480−100%

SHOWING 1–56 OF 56

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES