RANKING · 2024 ACS · 44 SHOWN OF 44

Highest British population share, Montana counties

Montana counties ranked by the share of all residents who are British ancestry (2024 American Community Survey). A concentration measure: British residents as a percentage of total population. This list covers the 44 counties in Montana that qualify, ranked against each other statewide. The median across all 44 is 0.3%. Biggest climber in the top 100 since 2020: Garfield County, MT, up 25 places to #7.

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MontanaAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPBRITISH SHAREVS 2010

01Granite County, MTMT3,6581.2%+0.4 pts

02▲13Sanders County, MTMT14,0621.0%+0.4 pts

03▲19Beaverhead County, MTMT10,0430.8%+0.8 pts

04▲14Park County, MTMT18,2140.8%+0.4 pts

05▲15Fergus County, MTMT11,8250.8%+0.7 pts

06▼1Lewis and Clark County, MTMT75,3310.7%+0.3 pts

07▲25Garfield County, MTMT1,1480.7%+0.3 pts

08▲18Carbon County, MTMT11,4660.6%−0.1 pts

09▼6Ravalli County, MTMT48,5820.5%+0.2 pts

10▼4Jefferson County, MTMT13,3290.5%+0.4 pts

11▲8Missoula County, MTMT123,5130.5%+0.1 pts

12▲9Madison County, MTMT10,0260.5%+0.3 pts

13▲15Yellowstone County, MTMT172,6920.5%+0.3 pts

14▼4Richland County, MTMT11,3770.5%–

15▼4Lake County, MTMT33,3920.4%+0.4 pts

16▲19Flathead County, MTMT115,4290.4%0.0 pts

17▲19Silver Bow County, MTMT36,1180.4%+0.3 pts

18▲13Carter County, MTMT1,3830.4%–

19▼12Broadwater County, MTMT8,4930.4%+0.2 pts

20▲5Chouteau County, MTMT5,8650.4%−0.3 pts

21▼17Sheridan County, MTMT3,4360.4%+0.1 pts

22▼13Gallatin County, MTMT128,7400.3%−0.1 pts

23Powder River County, MTMT1,7810.3%–

24▼10Stillwater County, MTMT9,4450.3%0.0 pts

25▼9Cascade County, MTMT85,0290.3%−0.2 pts

26▼24Deer Lodge County, MTMT9,7090.3%−0.1 pts

27▲12Lincoln County, MTMT22,3280.3%+0.2 pts

28▼11Judith Basin County, MTMT2,1620.2%−0.2 pts

29Custer County, MTMT12,0340.2%+0.1 pts

30Wheatland County, MTMT2,1000.2%−0.1 pts

31▲11McCone County, MTMT1,7200.2%–

32▼5Teton County, MTMT6,4960.2%−0.3 pts

33▼21Powell County, MTMT7,1570.2%0.0 pts

34▲12Dawson County, MTMT8,6920.2%−0.2 pts

35▲6Blaine County, MTMT6,8600.2%+0.1 pts

36Meagher County, MTMT2,1370.1%−1.1 pts

37▼24Sweet Grass County, MTMT3,7620.1%0.0 pts

38Hill County, MTMT16,1670.1%−0.2 pts

39▲5Golden Valley County, MTMT8440.1%−0.1 pts

40▼32Mineral County, MTMT5,1850.1%−0.4 pts

41▼1Phillips County, MTMT4,2030.1%–

42Roosevelt County, MTMT10,2420.1%–

43▼10Toole County, MTMT5,2110.0%−0.3 pts

44▲1Big Horn County, MTMT12,7520.0%–

SHOWING 1–44 OF 44

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