RANKING · 2020 CENSUS · 64 SHOWN OF 64

Largest foreign-born population, Colorado counties · 2020

Colorado counties with the most residents born outside the United States, as of the 2020 American Community Survey. Ranked by number of people, not share. This list covers the 64 counties in Colorado that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDMost residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people Most unmarried men

YEAR2010 2020 2024

RANKPLACESTATEPOPFOREIGN-BORN POPULATIONVS 2010

01Denver County, COCO740,613100,419+1%

02Arapahoe County, COCO673,820100,366+18%

03Adams County, COCO554,66876,971+15%

04El Paso County, COCO757,04050,814+13%

05Jefferson County, COCO580,45136,409+7%

06Boulder County, COCO328,56033,528+2%

07Weld County, COCO378,42629,291+22%

08Douglas County, COCO399,39627,307+62%

09Larimer County, COCO377,29220,463+29%

10Garfield County, COCO63,4748,653−8%

11Eagle County, COCO54,2918,500−18%

12Broomfield County, COCO79,1747,431+65%

13Mesa County, COCO162,8456,416+5%

14Pueblo County, COCO169,2775,201−3%

15Morgan County, COCO30,3064,000+4%

16Montrose County, COCO44,5913,196+0%

17Summit County, COCO31,5172,633−23%

18Pitkin County, COCO16,6252,012−7%

19Routt County, COCO25,3291,399+56%

20Delta County, COCO32,1781,395−4%

21La Plata County, COCO56,8981,321−18%

22Alamosa County, COCO16,6881,254+35%

23Fremont County, COCO50,0391,248−59%

24Yuma County, COCO9,8961,221+4%

25Prowers County, COCO11,8841,161−7%

26Moffat County, COCO13,122960+14%

27Logan County, COCO20,654919−14%

28Montezuma County, COCO26,678898+63%

29Phillips County, COCO4,420875+93%

30Otero County, COCO17,683830+11%

31San Miguel County, COCO7,753799+29%

32Chaffee County, COCO20,831742+31%

33Lake County, COCO7,552741−33%

34Rio Grande County, COCO11,087701+12%

35Gunnison County, COCO17,439674−19%

36Elbert County, COCO30,534661+12%

37Grand County, COCO16,496610−15%

38Archuleta County, COCO14,306570+173%

39Teller County, COCO24,756542+11%

40Kit Carson County, COCO7,069520−39%

41Las Animas County, COCO14,391475−17%

42Saguache County, COCO6,732449−41%

43Gilpin County, COCO6,073241+51%

44Rio Blanco County, COCO6,683223−46%

45Crowley County, COCO5,677222−38%

46Bent County, COCO5,716221−27%

47Costilla County, COCO3,679218−35%

48Park County, COCO18,314213−67%

49Clear Creek County, COCO8,994206−26%

50Lincoln County, COCO5,645203−21%

51Custer County, COCO5,590184+100%

52Conejos County, COCO7,529163−53%

53Huerfano County, COCO7,011154−46%

54Baca County, COCO3,347153+47%

55San Juan County, COCO813115+721%

56Cheyenne County, COCO1,713111+11%

57Washington County, COCO4,732110−46%

58Ouray County, COCO5,26596−22%

59Sedgwick County, COCO2,24788+63%

60Jackson County, COCO1,21159+168%

61Mineral County, COCO91047+262%

62Dolores County, COCO2,46625+525%

63Hinsdale County, COCO7536−75%

64Kiowa County, COCO1,4126−57%

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS