RANKING · 2020 CENSUS · 56 SHOWN OF 56

Most foreign-born residents, Montana counties · 2020

Montana counties ranked by the share of residents born outside the US (2020 ACS). This list covers the 56 counties in Montana that qualify, ranked against each other statewide.

MontanaAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

YEAR2010 2020 2024

RANKPLACESTATEPOPFOREIGN-BORNVS 2010

01Prairie County, MTMT1,1124.9%+4.2 pts

02Lincoln County, MTMT22,3283.5%+1.3 pts

03Meagher County, MTMT2,1373.4%−0.2 pts

04Madison County, MTMT10,0263.3%−1.1 pts

05Gallatin County, MTMT128,7403.2%+0.2 pts

06Missoula County, MTMT123,5133.0%+0.6 pts

07Toole County, MTMT5,2112.9%−0.7 pts

08Phillips County, MTMT4,2032.9%+2.0 pts

09Flathead County, MTMT115,4292.7%+0.7 pts

10Richland County, MTMT11,3772.6%+0.6 pts

11Park County, MTMT18,2142.6%−0.4 pts

12Musselshell County, MTMT5,5822.5%+0.1 pts

13Petroleum County, MTMT5482.4%+2.4 pts

14Wibaux County, MTMT8852.3%+0.8 pts

15Fergus County, MTMT11,8252.3%+1.3 pts

16Ravalli County, MTMT48,5822.3%+0.6 pts

17Lake County, MTMT33,3922.2%+0.2 pts

18Sheridan County, MTMT3,4362.2%+0.5 pts

19Golden Valley County, MTMT8442.1%+2.0 pts

20Silver Bow County, MTMT36,1182.0%−0.2 pts

21Yellowstone County, MTMT172,6921.9%+0.3 pts

22Custer County, MTMT12,0341.9%+0.8 pts

23Cascade County, MTMT85,0291.9%−0.3 pts

24Daniels County, MTMT1,6121.7%+0.1 pts

25McCone County, MTMT1,7201.7%+1.3 pts

26Sanders County, MTMT14,0621.7%+0.3 pts

27Deer Lodge County, MTMT9,7091.7%+0.7 pts

28Pondera County, MTMT6,0721.7%−0.6 pts

29Fallon County, MTMT2,9591.6%+0.0 pts

30Rosebud County, MTMT8,2531.6%+1.0 pts

31Glacier County, MTMT13,4631.6%+0.2 pts

32Powder River County, MTMT1,7811.5%+1.2 pts

33Lewis and Clark County, MTMT75,3311.5%−0.5 pts

34Jefferson County, MTMT13,3291.5%+0.2 pts

35Wheatland County, MTMT2,1001.5%+1.5 pts

36Roosevelt County, MTMT10,2421.5%+0.8 pts

37Dawson County, MTMT8,6921.5%+1.0 pts

38Chouteau County, MTMT5,8651.4%−0.0 pts

39Broadwater County, MTMT8,4931.4%+0.8 pts

40Hill County, MTMT16,1671.2%−0.2 pts

41Powell County, MTMT7,1571.2%+0.1 pts

42Beaverhead County, MTMT10,0431.1%−1.4 pts

43Carbon County, MTMT11,4661.1%−1.1 pts

44Valley County, MTMT7,3851.1%−0.8 pts

45Mineral County, MTMT5,1851.0%−0.1 pts

46Teton County, MTMT6,4961.0%−1.3 pts

47Granite County, MTMT3,6580.9%+0.3 pts

48Stillwater County, MTMT9,4450.8%−0.4 pts

49Judith Basin County, MTMT2,1620.8%−0.4 pts

50Sweet Grass County, MTMT3,7620.8%−1.4 pts

51Blaine County, MTMT6,8600.6%+0.1 pts

52Big Horn County, MTMT12,7520.5%−0.1 pts

53Liberty County, MTMT1,9570.5%−1.9 pts

54Carter County, MTMT1,3830.2%−0.2 pts

55Garfield County, MTMT1,1480.0%−0.1 pts

56Treasure County, MTMT7280.0%−1.1 pts

SHOWING 1–56 OF 56

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS