RANKING · 2024 ACS · 63 SHOWN OF 63

Largest Scotch-Irish population, Colorado counties

Colorado counties ranked by the number of residents who are Scotch-Irish ancestry, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 63 counties in Colorado that qualify, ranked against each other statewide.

Scotch-Irish 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

RANKPLACESTATEPOPSCOTCH-IRISH POPULATIONVS 2010

01El Paso County, COCO757,0407,953−45%

02Jefferson County, COCO580,4516,788−49%

03Arapahoe County, COCO673,8206,147−41%

04Denver County, COCO740,6135,390−48%

05Larimer County, COCO377,2924,781−38%

06Boulder County, COCO328,5603,610−54%

07Douglas County, COCO399,3963,489−47%

08Adams County, COCO554,6682,853−56%

09Weld County, COCO378,4262,742−39%

10Mesa County, COCO162,8452,299−35%

11Pueblo County, COCO169,2771,483−39%

12Garfield County, COCO63,474793−31%

13Broomfield County, COCO79,174765−40%

14La Plata County, COCO56,898585−61%

15Fremont County, COCO50,039544−48%

16Montrose County, COCO44,591543−39%

17Teller County, COCO24,756364−58%

18Elbert County, COCO30,534356−35%

19Chaffee County, COCO20,831353+9%

20Archuleta County, COCO14,306333+36%

21Montezuma County, COCO26,678322−59%

22Pitkin County, COCO16,625319−15%

23Delta County, COCO32,178311−65%

24Routt County, COCO25,329292−47%

25Morgan County, COCO30,306279−54%

26Clear Creek County, COCO8,994276−40%

27Gunnison County, COCO17,439256−33%

28Logan County, COCO20,654252−56%

29Grand County, COCO16,496237−22%

30Park County, COCO18,314226−74%

31Otero County, COCO17,683207−32%

32Saguache County, COCO6,732181+97%

33Eagle County, COCO54,291159−86%

34Crowley County, COCO5,677154+144%

35Moffat County, COCO13,122152−43%

36Summit County, COCO31,517140−81%

37Ouray County, COCO5,265137−26%

38Alamosa County, COCO16,688111−62%

39Lincoln County, COCO5,64596−52%

40Lake County, COCO7,55290−40%

41Las Animas County, COCO14,39185−78%

42Gilpin County, COCO6,07384−24%

43Dolores County, COCO2,46683−49%

44Yuma County, COCO9,89672−76%

45Rio Grande County, COCO11,08766−79%

46Huerfano County, COCO7,01150−85%

47Costilla County, COCO3,67945+114%

48Prowers County, COCO11,88445−77%

49San Miguel County, COCO7,75343−70%

50Hinsdale County, COCO75339+50%

51Rio Blanco County, COCO6,68335−78%

52Washington County, COCO4,73234−79%

53Kit Carson County, COCO7,06932−86%

54Baca County, COCO3,34727−81%

55Phillips County, COCO4,42026−66%

56Conejos County, COCO7,52925−86%

57Custer County, COCO5,59024−76%

58Bent County, COCO5,71622−67%

59Cheyenne County, COCO1,71321−75%

60Sedgwick County, COCO2,24719−74%

61Mineral County, COCO91013−57%

62San Juan County, COCO8139−86%

63Kiowa County, COCO1,4122−95%

SHOWING 1–63 OF 63

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES