RANKING · 1990 CENSUS · 63 SHOWN OF 63

Most racially diverse, Colorado counties · 1990

Colorado counties ranked by the CensusEasy Diversity Score (0 to 100), the chance two random residents are of a different race or ethnicity (1990 ACS). This list covers the 63 counties in Colorado that qualify, ranked against each other statewide. The median across all 63 is 22.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

RANKPLACESTATEPOPDIVERSITY SCOREVS –

01Denver County, COCO740,61369–

02Saguache County, COCO6,73265–

03Las Animas County, COCO14,39163–

04Alamosa County, COCO16,68863–

05Pueblo County, COCO169,27762–

06Huerfano County, COCO7,01162–

07Rio Grande County, COCO11,08761–

08Conejos County, COCO7,52961–

09Otero County, COCO17,68360–

10Crowley County, COCO5,67759–

11Bent County, COCO5,71652–

12Adams County, COCO554,66850–

13Archuleta County, COCO14,30649–

14Lake County, COCO7,55247–

15Prowers County, COCO11,88446–

16Costilla County, COCO3,67945–

17Weld County, COCO378,42645–

18Montezuma County, COCO26,67844–

19El Paso County, COCO757,04040–

20Morgan County, COCO30,30640–

21La Plata County, COCO56,89835–

22Arapahoe County, COCO673,82033–

23Eagle County, COCO54,29131–

24San Juan County, COCO81328–

25Fremont County, COCO50,03928–

26Chaffee County, COCO20,83127–

27Montrose County, COCO44,59126–

28Sedgwick County, COCO2,24724–

29Boulder County, COCO328,56024–

30Delta County, COCO32,17822–

31Jefferson County, COCO580,45122–

32Mesa County, COCO162,84522–

33Larimer County, COCO377,29221–

34Logan County, COCO20,65419–

35Kit Carson County, COCO7,06919–

36Moffat County, COCO13,12218–

37Pitkin County, COCO16,62517–

38Garfield County, COCO63,47417–

39Baca County, COCO3,34715–

40Jackson County, COCO1,21115–

41Ouray County, COCO5,26513–

42Douglas County, COCO399,39613–

43Rio Blanco County, COCO6,68312–

44Gunnison County, COCO17,43912–

45Gilpin County, COCO6,07311–

46Clear Creek County, COCO8,99411–

47Park County, COCO18,31411–

48Elbert County, COCO30,53411–

49Cheyenne County, COCO1,71310–

50Kiowa County, COCO1,41210–

51Summit County, COCO31,51710–

52Dolores County, COCO2,46610–

53Phillips County, COCO4,4209–

54Custer County, COCO5,5909–

55San Miguel County, COCO7,7539–

56Teller County, COCO24,7569–

57Grand County, COCO16,4968–

58Routt County, COCO25,3298–

59Lincoln County, COCO5,6457–

60Yuma County, COCO9,8967–

61Washington County, COCO4,7324–

62Mineral County, COCO9103–

63Hinsdale County, COCO7533–

SHOWING 1–63 OF 63

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS