RANKING · 2010 CENSUS · 64 SHOWN OF 64

Highest Scotch-Irish population share, Colorado counties · 2010

Colorado counties ranked by the share of all residents who are Scotch-Irish ancestry (2023 American Community Survey). A concentration measure: Scotch-Irish residents as a percentage of total population. This list covers the 64 counties in Colorado that qualify, ranked against each other statewide.

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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

RANKPLACESTATEPOPSCOTCH-IRISH SHAREVS 2000

01San Juan County, COCO8138.6%–

02Dolores County, COCO2,4668.0%–

03Hinsdale County, COCO7535.3%–

04Park County, COCO18,3145.2%–

05Clear Creek County, COCO8,9945.0%–

06Huerfano County, COCO7,0114.9%–

07Ouray County, COCO5,2654.3%–

08Cheyenne County, COCO1,7133.9%–

09Teller County, COCO24,7563.8%–

10Baca County, COCO3,3473.6%–

11Lincoln County, COCO5,6453.6%–

12Washington County, COCO4,7323.4%–

13Montezuma County, COCO26,6783.1%–

14Sedgwick County, COCO2,2473.0%–

15Yuma County, COCO9,8963.0%–

16La Plata County, COCO56,8983.0%–

17Mineral County, COCO9102.9%–

18Delta County, COCO32,1782.9%–

19Kit Carson County, COCO7,0692.7%–

20Summit County, COCO31,5172.7%–

21Boulder County, COCO328,5602.7%–

22Rio Grande County, COCO11,0872.7%–

23Larimer County, COCO377,2922.7%–

24Custer County, COCO5,5902.6%–

25Logan County, COCO20,6542.6%–

26Gunnison County, COCO17,4392.5%–

27Jefferson County, COCO580,4512.5%–

28Mesa County, COCO162,8452.5%–

29Kiowa County, COCO1,4122.5%–

30Las Animas County, COCO14,3912.5%–

31Douglas County, COCO399,3962.4%–

32Routt County, COCO25,3292.4%–

33El Paso County, COCO757,0402.4%–

34Broomfield County, COCO79,1742.4%–

35Elbert County, COCO30,5342.4%–

36Rio Blanco County, COCO6,6832.4%–

37Pitkin County, COCO16,6252.3%–

38Eagle County, COCO54,2912.2%–

39Fremont County, COCO50,0392.2%–

40Montrose County, COCO44,5912.2%–

41Conejos County, COCO7,5292.2%–

42Gilpin County, COCO6,0732.2%–

43Morgan County, COCO30,3062.2%–

44Lake County, COCO7,5522.1%–

45Garfield County, COCO63,4742.1%–

46Grand County, COCO16,4962.1%–

47Archuleta County, COCO14,3062.0%–

48Moffat County, COCO13,1222.0%–

49Jackson County, COCO1,2112.0%–

50San Miguel County, COCO7,7531.9%–

51Alamosa County, COCO16,6881.9%–

52Arapahoe County, COCO673,8201.9%–

53Weld County, COCO378,4261.9%–

54Chaffee County, COCO20,8311.8%–

55Denver County, COCO740,6131.8%–

56Phillips County, COCO4,4201.7%–

57Otero County, COCO17,6831.6%–

58Pueblo County, COCO169,2771.6%–

59Prowers County, COCO11,8841.5%–

60Adams County, COCO554,6681.5%–

61Saguache County, COCO6,7321.5%–

62Bent County, COCO5,7161.1%–

63Crowley County, COCO5,6771.1%–

64Costilla County, COCO3,6790.6%–

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