RANKING · 2020 CENSUS · 46 SHOWN OF 46

Highest British population share, Montana counties · 2020

Montana counties ranked by the share of all residents who are British ancestry (2023 American Community Survey). A concentration measure: British residents as a percentage of total population. This list covers the 46 counties in Montana that qualify, ranked against each other statewide.

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

YEAR2010 2020 2024

RANKPLACESTATEPOPBRITISH SHAREVS 2000

01Granite County, MTMT3,6581.5%–

02Deer Lodge County, MTMT9,7091.3%–

03Ravalli County, MTMT48,5821.3%–

04Sheridan County, MTMT3,4361.1%–

05Lewis and Clark County, MTMT75,3311.1%–

06Jefferson County, MTMT13,3291.1%–

07Broadwater County, MTMT8,4931.0%–

08Mineral County, MTMT5,1850.9%–

09Gallatin County, MTMT128,7400.9%–

10Richland County, MTMT11,3770.9%–

11Lake County, MTMT33,3920.9%–

12Powell County, MTMT7,1570.8%–

13Sweet Grass County, MTMT3,7620.8%–

14Stillwater County, MTMT9,4450.8%–

15Sanders County, MTMT14,0620.8%–

16Cascade County, MTMT85,0290.8%–

17Judith Basin County, MTMT2,1620.7%–

18Park County, MTMT18,2140.7%–

19Missoula County, MTMT123,5130.7%–

20Fergus County, MTMT11,8250.7%–

21Madison County, MTMT10,0260.6%–

22Beaverhead County, MTMT10,0430.6%–

23Prairie County, MTMT1,1120.6%–

24Musselshell County, MTMT5,5820.6%–

25Chouteau County, MTMT5,8650.5%–

26Carbon County, MTMT11,4660.5%–

27Teton County, MTMT6,4960.5%–

28Yellowstone County, MTMT172,6920.5%–

29Custer County, MTMT12,0340.4%–

30Pondera County, MTMT6,0720.4%–

31Carter County, MTMT1,3830.4%–

32Garfield County, MTMT1,1480.4%–

33Toole County, MTMT5,2110.4%–

34Glacier County, MTMT13,4630.3%–

35Flathead County, MTMT115,4290.3%–

36Silver Bow County, MTMT36,1180.3%–

37Liberty County, MTMT1,9570.3%–

38Hill County, MTMT16,1670.3%–

39Lincoln County, MTMT22,3280.3%–

40Phillips County, MTMT4,2030.2%–

41Blaine County, MTMT6,8600.2%–

42McCone County, MTMT1,7200.2%–

43Valley County, MTMT7,3850.1%–

44Golden Valley County, MTMT8440.1%–

45Big Horn County, MTMT12,7520.0%–

46Dawson County, MTMT8,6920.0%–

SHOWING 1–46 OF 46

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