RANKING · 2024 ACS · 56 SHOWN OF 56

Highest American population share, Montana counties

Montana counties ranked by the share of all residents who are American ancestry (2023 American Community Survey). A concentration measure: American residents as a percentage of total population. This list covers the 56 counties in Montana that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

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

YEAR2010 2020 2024

RANKPLACESTATEPOPAMERICAN SHAREVS 2000

01Garfield County, MTMT1,14826.1%–

02Wheatland County, MTMT2,10025.0%–

03Petroleum County, MTMT54819.7%–

04Daniels County, MTMT1,61218.7%–

05Fergus County, MTMT11,82513.0%–

06Meagher County, MTMT2,13712.6%–

07Valley County, MTMT7,38512.3%–

08Chouteau County, MTMT5,86512.3%–

09Judith Basin County, MTMT2,16212.1%–

10Richland County, MTMT11,37711.4%–

11Treasure County, MTMT72811.1%–

12Hill County, MTMT16,16711.0%–

13Prairie County, MTMT1,11210.5%–

14McCone County, MTMT1,72010.3%–

15Powder River County, MTMT1,78110.0%–

16Phillips County, MTMT4,2038.8%–

17Teton County, MTMT6,4968.8%–

18Wibaux County, MTMT8858.5%–

19Musselshell County, MTMT5,5828.4%–

20Sanders County, MTMT14,0627.7%–

21Granite County, MTMT3,6587.7%–

22Park County, MTMT18,2147.5%–

23Cascade County, MTMT85,0297.4%–

24Dawson County, MTMT8,6927.0%–

25Rosebud County, MTMT8,2536.8%–

26Carter County, MTMT1,3836.4%–

27Custer County, MTMT12,0346.3%–

28Powell County, MTMT7,1576.3%–

29Fallon County, MTMT2,9596.0%–

30Lewis and Clark County, MTMT75,3315.9%–

31Roosevelt County, MTMT10,2425.5%–

32Liberty County, MTMT1,9575.4%–

33Toole County, MTMT5,2115.4%–

34Deer Lodge County, MTMT9,7095.1%–

35Stillwater County, MTMT9,4455.0%–

36Lake County, MTMT33,3925.0%–

37Lincoln County, MTMT22,3285.0%–

38Beaverhead County, MTMT10,0435.0%–

39Carbon County, MTMT11,4665.0%–

40Ravalli County, MTMT48,5824.8%–

41Golden Valley County, MTMT8444.8%–

42Gallatin County, MTMT128,7404.7%–

43Yellowstone County, MTMT172,6924.7%–

44Silver Bow County, MTMT36,1184.7%–

45Blaine County, MTMT6,8604.6%–

46Flathead County, MTMT115,4294.6%–

47Sheridan County, MTMT3,4364.6%–

48Madison County, MTMT10,0264.5%–

49Pondera County, MTMT6,0723.8%–

50Missoula County, MTMT123,5133.7%–

51Mineral County, MTMT5,1852.8%–

52Jefferson County, MTMT13,3292.7%–

53Sweet Grass County, MTMT3,7622.7%–

54Broadwater County, MTMT8,4932.5%–

55Big Horn County, MTMT12,7522.3%–

56Glacier County, MTMT13,4631.8%–

SHOWING 1–56 OF 56

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES