RANKING · 2010 CENSUS · 51 SHOWN OF 51

Highest Welsh population share, Montana counties · 2010

Montana counties ranked by the share of all residents who are Welsh ancestry (2010 American Community Survey). A concentration measure: Welsh residents as a percentage of total population. This list covers the 51 counties in Montana that qualify, ranked against each other statewide. The median across all 51 is 1.0%.

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 –

01Wheatland County, MTMT2,1002.9%–

02Beaverhead County, MTMT10,0432.5%–

03Powell County, MTMT7,1572.2%–

04Ravalli County, MTMT48,5821.9%–

05Carter County, MTMT1,3831.8%–

06Mineral County, MTMT5,1851.7%–

07Gallatin County, MTMT128,7401.6%–

08Pondera County, MTMT6,0721.6%–

09Granite County, MTMT3,6581.4%–

10Lincoln County, MTMT22,3281.4%–

11Jefferson County, MTMT13,3291.4%–

12Chouteau County, MTMT5,8651.4%–

13Silver Bow County, MTMT36,1181.4%–

14Carbon County, MTMT11,4661.3%–

15Deer Lodge County, MTMT9,7091.2%–

16Musselshell County, MTMT5,5821.2%–

17Custer County, MTMT12,0341.1%–

18Meagher County, MTMT2,1371.1%–

19Wibaux County, MTMT8851.1%–

20Flathead County, MTMT115,4291.1%–

21Sweet Grass County, MTMT3,7621.1%–

22McCone County, MTMT1,7201.1%–

23Yellowstone County, MTMT172,6921.0%–

24Park County, MTMT18,2141.0%–

25Lewis and Clark County, MTMT75,3311.0%–

26Judith Basin County, MTMT2,1621.0%–

27Stillwater County, MTMT9,4451.0%–

28Madison County, MTMT10,0260.9%–

29Toole County, MTMT5,2110.9%–

30Cascade County, MTMT85,0290.8%–

31Missoula County, MTMT123,5130.8%–

32Lake County, MTMT33,3920.7%–

33Sanders County, MTMT14,0620.7%–

34Teton County, MTMT6,4960.7%–

35Fergus County, MTMT11,8250.7%–

36Sheridan County, MTMT3,4360.7%–

37Big Horn County, MTMT12,7520.6%–

38Broadwater County, MTMT8,4930.6%–

39Glacier County, MTMT13,4630.6%–

40Hill County, MTMT16,1670.6%–

41Prairie County, MTMT1,1120.6%–

42Valley County, MTMT7,3850.5%–

43Powder River County, MTMT1,7810.5%–

44Richland County, MTMT11,3770.4%–

45Fallon County, MTMT2,9590.4%–

46Dawson County, MTMT8,6920.4%–

47Daniels County, MTMT1,6120.3%–

48Rosebud County, MTMT8,2530.2%–

49Phillips County, MTMT4,2030.2%–

50Blaine County, MTMT6,8600.2%–

51Roosevelt County, MTMT10,2420.0%–

SHOWING 1–51 OF 51

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