RANKING · 2020 CENSUS · 64 SHOWN OF 64

Most foreign-born residents, Colorado counties · 2020

Colorado counties ranked by the share of residents born outside the US (2023 ACS). This list covers the 64 counties in Colorado that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDOldest by median age Youngest by median age Highest uninsured rate Most women Most men Highest disability rate

YEAR2010 2020 2024

RANKPLACESTATEPOPFOREIGN-BORNVS 2000

01Phillips County, COCO4,42019.3%–

02San Juan County, COCO81316.3%–

03Arapahoe County, COCO673,82015.3%–

04Eagle County, COCO54,29115.3%–

05Adams County, COCO554,66814.8%–

06Denver County, COCO740,61314.0%–

07Garfield County, COCO63,47414.0%–

08Morgan County, COCO30,30613.7%–

09Yuma County, COCO9,89612.2%–

10Pitkin County, COCO16,62511.6%–

11Boulder County, COCO328,56010.1%–

12Broomfield County, COCO79,17410.0%–

13Lake County, COCO7,55210.0%–

14San Miguel County, COCO7,7539.9%–

15Prowers County, COCO11,8849.7%–

16Weld County, COCO378,4268.9%–

17Summit County, COCO31,5178.5%–

18Alamosa County, COCO16,6887.7%–

19Douglas County, COCO399,3967.6%–

20Montrose County, COCO44,5917.5%–

21Kit Carson County, COCO7,0697.3%–

22Moffat County, COCO13,1227.2%–

23Saguache County, COCO6,7327.0%–

24El Paso County, COCO757,0407.0%–

25Cheyenne County, COCO1,7136.4%–

26Jefferson County, COCO580,4516.2%–

27Costilla County, COCO3,6796.2%–

28Rio Grande County, COCO11,0876.1%–

29Larimer County, COCO377,2925.7%–

30Routt County, COCO25,3295.6%–

31Mineral County, COCO9105.4%–

32Delta County, COCO32,1784.5%–

33Otero County, COCO17,6834.4%–

34Baca County, COCO3,3474.4%–

35Archuleta County, COCO14,3064.3%–

36Logan County, COCO20,6544.3%–

37Jackson County, COCO1,2114.3%–

38Gilpin County, COCO6,0734.1%–

39Mesa County, COCO162,8454.1%–

40Gunnison County, COCO17,4394.0%–

41Bent County, COCO5,7163.9%–

42Custer County, COCO5,5903.9%–

43Grand County, COCO16,4963.9%–

44Chaffee County, COCO20,8313.8%–

45Crowley County, COCO5,6773.8%–

46Sedgwick County, COCO2,2473.6%–

47Lincoln County, COCO5,6453.6%–

48Montezuma County, COCO26,6783.5%–

49Rio Blanco County, COCO6,6833.4%–

50Las Animas County, COCO14,3913.3%–

51Pueblo County, COCO169,2773.1%–

52Fremont County, COCO50,0392.6%–

53Elbert County, COCO30,5342.5%–

54La Plata County, COCO56,8982.4%–

55Washington County, COCO4,7322.3%–

56Huerfano County, COCO7,0112.3%–

57Teller County, COCO24,7562.2%–

58Clear Creek County, COCO8,9942.2%–

59Conejos County, COCO7,5292.2%–

60Ouray County, COCO5,2652.0%–

61Park County, COCO18,3141.2%–

62Dolores County, COCO2,4661.1%–

63Hinsdale County, COCO7530.8%–

64Kiowa County, COCO1,4120.4%–

SHOWING 1–64 OF 64

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES