RANKING · 2024 ACS · 56 SHOWN OF 56

Largest American population, Montana counties

Montana counties ranked by the number of residents who are American ancestry, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 56 counties in Montana that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDHighest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share Largest Iraqi population

YEAR2010 2020 2024

RANKPLACESTATEPOPAMERICAN POPULATIONVS 2010

01Yellowstone County, MTMT172,6927,936−45%

02Cascade County, MTMT85,0296,295+72%

03Gallatin County, MTMT128,7405,849+90%

04Flathead County, MTMT115,4295,129+25%

05Missoula County, MTMT123,5134,429−23%

06Lewis and Clark County, MTMT75,3314,302+37%

07Ravalli County, MTMT48,5822,238−33%

08Hill County, MTMT16,1671,769+265%

09Silver Bow County, MTMT36,1181,670+57%

10Lake County, MTMT33,3921,624+49%

11Fergus County, MTMT11,8251,525+218%

12Park County, MTMT18,2141,325+13%

13Richland County, MTMT11,3771,285+55%

14Lincoln County, MTMT22,3281,054+63%

15Sanders County, MTMT14,0621,022+170%

16Valley County, MTMT7,385928+87%

17Custer County, MTMT12,034757−54%

18Chouteau County, MTMT5,865728+539%

19Dawson County, MTMT8,692618+6%

20Roosevelt County, MTMT10,242584+346%

21Teton County, MTMT6,496560+111%

22Rosebud County, MTMT8,253555−76%

23Carbon County, MTMT11,466551−56%

24Wheatland County, MTMT2,100513−31%

25Deer Lodge County, MTMT9,709490+103%

26Beaverhead County, MTMT10,043483+53%

27Stillwater County, MTMT9,445458−26%

28Powell County, MTMT7,157445+35%

29Musselshell County, MTMT5,582431+41%

30Madison County, MTMT10,026416+91%

31Phillips County, MTMT4,203373−12%

32Jefferson County, MTMT13,329347−26%

33Blaine County, MTMT6,860323+152%

34Big Horn County, MTMT12,752295−81%

35Garfield County, MTMT1,148285+121%

36Daniels County, MTMT1,612279+1368%

37Toole County, MTMT5,211272+46%

38Granite County, MTMT3,658266+10%

39Meagher County, MTMT2,137252+294%

40Judith Basin County, MTMT2,162250+635%

41Glacier County, MTMT13,463245+35%

42Pondera County, MTMT6,072228−34%

43Broadwater County, MTMT8,493189+52%

44Powder River County, MTMT1,781182−65%

45McCone County, MTMT1,720172−21%

46Sheridan County, MTMT3,436169−3%

47Fallon County, MTMT2,959165+1550%

48Mineral County, MTMT5,185137+9%

49Prairie County, MTMT1,112131−15%

50Liberty County, MTMT1,957105+228%

51Wibaux County, MTMT885102−21%

52Sweet Grass County, MTMT3,76299−79%

53Petroleum County, MTMT54888+319%

54Carter County, MTMT1,38384+50%

55Treasure County, MTMT72881−76%

56Golden Valley County, MTMT84443−41%

SHOWING 1–56 OF 56

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