RANKING · 2020 CENSUS · 64 SHOWN OF 64

Highest American population share, Colorado counties · 2020

Colorado counties ranked by the share of all residents who are American ancestry (2023 American Community Survey). A concentration measure: American 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 Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share Largest Iraqi population

YEAR2010 2020 2024

RANKPLACESTATEPOPAMERICAN SHAREVS 2000

01Dolores County, COCO2,46621.7%–

02Montezuma County, COCO26,67814.4%–

03San Miguel County, COCO7,7539.3%–

04Gilpin County, COCO6,0738.9%–

05Moffat County, COCO13,1228.0%–

06Prowers County, COCO11,8846.6%–

07Morgan County, COCO30,3066.1%–

08Montrose County, COCO44,5916.1%–

09Ouray County, COCO5,2655.7%–

10Kit Carson County, COCO7,0695.5%–

11Otero County, COCO17,6835.5%–

12Elbert County, COCO30,5345.4%–

13Phillips County, COCO4,4205.1%–

14Delta County, COCO32,1785.0%–

15Custer County, COCO5,5904.8%–

16Kiowa County, COCO1,4124.8%–

17Costilla County, COCO3,6794.6%–

18Baca County, COCO3,3474.5%–

19Weld County, COCO378,4264.5%–

20El Paso County, COCO757,0404.4%–

21Mesa County, COCO162,8454.4%–

22La Plata County, COCO56,8984.3%–

23Arapahoe County, COCO673,8204.3%–

24Larimer County, COCO377,2924.3%–

25Cheyenne County, COCO1,7134.3%–

26Chaffee County, COCO20,8314.2%–

27Bent County, COCO5,7164.2%–

28Saguache County, COCO6,7324.1%–

29Douglas County, COCO399,3963.8%–

30Pueblo County, COCO169,2773.7%–

31Teller County, COCO24,7563.6%–

32Jefferson County, COCO580,4513.6%–

33Gunnison County, COCO17,4393.5%–

34Garfield County, COCO63,4743.4%–

35Fremont County, COCO50,0393.4%–

36Yuma County, COCO9,8963.4%–

37Park County, COCO18,3143.3%–

38Logan County, COCO20,6543.3%–

39Washington County, COCO4,7323.3%–

40Archuleta County, COCO14,3063.2%–

41Broomfield County, COCO79,1743.2%–

42Crowley County, COCO5,6773.2%–

43Clear Creek County, COCO8,9943.2%–

44Adams County, COCO554,6683.1%–

45Boulder County, COCO328,5603.1%–

46Las Animas County, COCO14,3913.1%–

47Eagle County, COCO54,2913.1%–

48Rio Blanco County, COCO6,6833.0%–

49Alamosa County, COCO16,6882.9%–

50Sedgwick County, COCO2,2472.9%–

51Denver County, COCO740,6132.8%–

52Rio Grande County, COCO11,0872.7%–

53Pitkin County, COCO16,6252.4%–

54Huerfano County, COCO7,0112.4%–

55Lincoln County, COCO5,6452.3%–

56Conejos County, COCO7,5292.3%–

57Routt County, COCO25,3291.9%–

58Summit County, COCO31,5171.9%–

59San Juan County, COCO8131.7%–

60Grand County, COCO16,4961.6%–

61Mineral County, COCO9101.1%–

62Lake County, COCO7,5520.9%–

63Jackson County, COCO1,2110.5%–

64Hinsdale County, COCO7530.3%–

SHOWING 1–64 OF 64

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