RANKING · 2020 CENSUS · 50 SHOWN OF 50

Highest Welsh population share, Montana counties · 2020

Montana counties ranked by the share of all residents who are Welsh ancestry (2020 American Community Survey). A concentration measure: Welsh residents as a percentage of total population. This list covers the 50 counties in Montana that qualify, ranked against each other statewide. The median across all 50 is 0.9%.

Welsh Americans: full group profile →

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SAME RANKING BYCities States Metros

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

YEAR2010 2020 2024

RANKPLACESTATEPOPWELSH SHAREVS 2010

01Dawson County, MTMT8,6923.0%+2.6 pts

02Liberty County, MTMT1,9572.5%–

03Madison County, MTMT10,0262.5%+1.5 pts

04Meagher County, MTMT2,1372.2%+1.1 pts

05Sanders County, MTMT14,0621.7%+1.0 pts

06Garfield County, MTMT1,1481.6%–

07Custer County, MTMT12,0341.6%+0.4 pts

08Lewis and Clark County, MTMT75,3311.5%+0.5 pts

09Deer Lodge County, MTMT9,7091.5%+0.2 pts

10Sweet Grass County, MTMT3,7621.4%+0.3 pts

11Ravalli County, MTMT48,5821.4%−0.5 pts

12Silver Bow County, MTMT36,1181.4%0.0 pts

13Beaverhead County, MTMT10,0431.4%−1.2 pts

14Mineral County, MTMT5,1851.3%−0.4 pts

15Broadwater County, MTMT8,4931.3%+0.7 pts

16Stillwater County, MTMT9,4451.3%+0.3 pts

17Chouteau County, MTMT5,8651.2%−0.2 pts

18Granite County, MTMT3,6581.2%−0.3 pts

19Cascade County, MTMT85,0291.1%+0.3 pts

20Powell County, MTMT7,1571.1%−1.1 pts

21Carbon County, MTMT11,4661.1%−0.3 pts

22Gallatin County, MTMT128,7401.0%−0.5 pts

23Toole County, MTMT5,2111.0%+0.1 pts

24Golden Valley County, MTMT8441.0%–

25Carter County, MTMT1,3830.9%−0.9 pts

26Jefferson County, MTMT13,3290.9%−0.5 pts

27Lake County, MTMT33,3920.8%+0.1 pts

28Missoula County, MTMT123,5130.8%0.0 pts

29Flathead County, MTMT115,4290.8%−0.3 pts

30Teton County, MTMT6,4960.8%+0.1 pts

31Yellowstone County, MTMT172,6920.7%−0.3 pts

32Lincoln County, MTMT22,3280.7%−0.7 pts

33Richland County, MTMT11,3770.7%+0.2 pts

34Powder River County, MTMT1,7810.7%+0.2 pts

35Fergus County, MTMT11,8250.7%0.0 pts

36Park County, MTMT18,2140.7%−0.4 pts

37Judith Basin County, MTMT2,1620.7%−0.4 pts

38McCone County, MTMT1,7200.6%−0.4 pts

39Sheridan County, MTMT3,4360.5%−0.1 pts

40Rosebud County, MTMT8,2530.5%+0.3 pts

41Glacier County, MTMT13,4630.4%−0.2 pts

42Big Horn County, MTMT12,7520.3%−0.3 pts

43Phillips County, MTMT4,2030.3%+0.1 pts

44Blaine County, MTMT6,8600.3%+0.1 pts

45Valley County, MTMT7,3850.2%−0.3 pts

46Pondera County, MTMT6,0720.2%−1.4 pts

47Hill County, MTMT16,1670.2%−0.4 pts

48Fallon County, MTMT2,9590.1%−0.3 pts

49Musselshell County, MTMT5,5820.1%−1.1 pts

50Roosevelt County, MTMT10,2420.1%+0.1 pts

SHOWING 1–50 OF 50

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS