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 (2024 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. The median across all 56 is 6.3%. Biggest climber in the top 100 since 2020: Meagher County, MT, up 46 places to #6.

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPAMERICAN SHAREVS 2010

01Garfield County, MTMT1,14826.1%+15.5 pts

02▲1Wheatland County, MTMT2,10025.0%−10.2 pts

03▼1Petroleum County, MTMT54819.7%+16.2 pts

04▲18Daniels County, MTMT1,61218.7%+17.5 pts

05Fergus County, MTMT11,82513.0%+8.9 pts

06▲46Meagher County, MTMT2,13712.6%+9.4 pts

07▲3Valley County, MTMT7,38512.3%+5.6 pts

08Chouteau County, MTMT5,86512.3%+10.3 pts

09▼2Judith Basin County, MTMT2,16212.1%+10.3 pts

10▲21Richland County, MTMT11,37711.4%+2.7 pts

11▲4Treasure County, MTMT72811.1%−29.1 pts

12▲9Hill County, MTMT16,16711.0%+7.9 pts

13▲14Prairie County, MTMT1,11210.5%−3.7 pts

14▼5McCone County, MTMT1,72010.3%−2.4 pts

15▲4Powder River County, MTMT1,78110.0%−21.0 pts

16▼12Phillips County, MTMT4,2038.8%−1.3 pts

17▲7Teton County, MTMT6,4968.8%+4.5 pts

18▲20Wibaux County, MTMT8858.5%−3.5 pts

19▼13Musselshell County, MTMT5,5828.4%+1.3 pts

20▼3Sanders County, MTMT14,0627.7%+4.4 pts

21▲8Granite County, MTMT3,6587.7%−0.2 pts

22▲29Park County, MTMT18,2147.5%0.0 pts

23▼12Cascade County, MTMT85,0297.4%+2.9 pts

24▼6Dawson County, MTMT8,6927.0%+0.5 pts

25▲22Rosebud County, MTMT8,2536.8%−18.2 pts

26▼14Carter County, MTMT1,3836.4%+2.1 pts

27▲5Custer County, MTMT12,0346.3%−7.9 pts

28▼12Powell County, MTMT7,1576.3%+1.6 pts

29▲8Fallon County, MTMT2,9596.0%+5.6 pts

30▲6Lewis and Clark County, MTMT75,3315.9%+0.8 pts

31▲23Roosevelt County, MTMT10,2425.5%+4.3 pts

32▲18Liberty County, MTMT1,9575.4%+4.0 pts

33▲13Toole County, MTMT5,2115.4%+1.8 pts

34▼6Deer Lodge County, MTMT9,7095.1%+2.5 pts

35▼21Stillwater County, MTMT9,4455.0%−1.9 pts

36▼1Lake County, MTMT33,3925.0%+1.2 pts

37▲6Lincoln County, MTMT22,3285.0%+1.7 pts

38▼8Beaverhead County, MTMT10,0435.0%+1.5 pts

39▼26Carbon County, MTMT11,4665.0%−7.6 pts

40▲4Ravalli County, MTMT48,5824.8%−3.6 pts

41▼15Golden Valley County, MTMT8444.8%−4.2 pts

42▼2Gallatin County, MTMT128,7404.7%+1.2 pts

43▼20Yellowstone County, MTMT172,6924.7%−5.3 pts

44▲9Silver Bow County, MTMT36,1184.7%+1.5 pts

45▼20Blaine County, MTMT6,8604.6%+2.7 pts

46▼12Flathead County, MTMT115,4294.6%0.0 pts

47▼27Sheridan County, MTMT3,4364.6%−0.4 pts

48Madison County, MTMT10,0264.5%+1.6 pts

49▼4Pondera County, MTMT6,0723.8%−1.8 pts

50▼8Missoula County, MTMT123,5133.7%−1.7 pts

51▼12Mineral County, MTMT5,1852.8%−0.2 pts

52▼11Jefferson County, MTMT13,3292.7%−1.5 pts

53▼4Sweet Grass County, MTMT3,7622.7%−10.3 pts

54▼21Broadwater County, MTMT8,4932.5%+0.1 pts

55▲1Big Horn County, MTMT12,7522.3%−9.8 pts

56▼1Glacier County, MTMT13,4631.8%+0.4 pts

SHOWING 1–56 OF 56

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