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. The median across all 56 is 106. Biggest climber in the top 100 since 2020: Blaine County, MT, up 18 places to #24.

MontanaAll states All rankings

SAME RANKING BYCities States Metros

RELATEDMost residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people Most unmarried men

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%

08▲2Lake County, MTMT33,392758+30%

09▼1Lincoln County, MTMT22,328547+26%

10▲1Park County, MTMT18,214443−4%

11▼2Silver Bow County, MTMT36,118439−39%

12Richland County, MTMT11,377345+81%

13Madison County, MTMT10,026254−26%

14Fergus County, MTMT11,825253+128%

15▲2Sanders County, MTMT14,062224+36%

16▲6Toole County, MTMT5,211215+11%

17▲6Rosebud County, MTMT8,253185+203%

18▲14Powell County, MTMT7,157165+120%

19▼1Hill County, MTMT16,167163−31%

20▼5Custer County, MTMT12,034157+22%

21▲7Beaverhead County, MTMT10,043155−34%

22▼3Jefferson County, MTMT13,329128−14%

23▲12Stillwater County, MTMT9,445117+4%

24▲18Blaine County, MTMT6,860115+259%

25Phillips County, MTMT4,203110+214%

26▲10Big Horn County, MTMT12,752109+27%

27▼11Glacier County, MTMT13,463107−42%

28▲1Pondera County, MTMT6,072106−25%

29▲5Sheridan County, MTMT3,436100+82%

30▲3Valley County, MTMT7,38591−32%

31▼5Musselshell County, MTMT5,58290−18%

32▼1Chouteau County, MTMT5,86588+1%

33▼13Roosevelt County, MTMT10,24288+26%

34▲9Granite County, MTMT3,65876+300%

35▲6Mineral County, MTMT5,18576+65%

36▼9Carbon County, MTMT11,46669−68%

37▼7Broadwater County, MTMT8,49362+63%

38▲11Wibaux County, MTMT88562+313%

39▲14Liberty County, MTMT1,95756−3%

40Fallon County, MTMT2,95952+13%

41▼2Prairie County, MTMT1,11250+456%

42▲9Judith Basin County, MTMT2,16247+96%

43▲4Sweet Grass County, MTMT3,76247−42%

44▼20Dawson County, MTMT8,69239−5%

45▼24Deer Lodge County, MTMT9,70936−60%

46Daniels County, MTMT1,61235+25%

47▼3Wheatland County, MTMT2,10030–

48▼10Teton County, MTMT6,49626−81%

49▼1Powder River County, MTMT1,78125+317%

50▼5McCone County, MTMT1,72021+250%

51▼14Meagher County, MTMT2,13719−72%

52▲4Treasure County, MTMT72812+50%

53▼3Golden Valley County, MTMT8449+800%

54Carter County, MTMT1,3835+25%

55▼3Petroleum County, MTMT5484–

56▼1Garfield County, MTMT1,1480−100%

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES