RANKING · 2020 CENSUS · 64 SHOWN OF 64

Least racially diverse, Colorado counties · 2020

Colorado counties with the lowest CensusEasy Diversity Score, where most residents share the same race or ethnicity (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

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPDIVERSITY SCOREVS 2000

01Custer County, COCO5,59013+65%

02Hinsdale County, COCO75317+294%

03Kiowa County, COCO1,41222+144%

04Ouray County, COCO5,26522+103%

05Jackson County, COCO1,21126+65%

06Clear Creek County, COCO8,99426+135%

07Mineral County, COCO91028+449%

08Routt County, COCO25,32929+221%

09Washington County, COCO4,73230+99%

10Park County, COCO18,31430+138%

11Elbert County, COCO30,53431+159%

12Gilpin County, COCO6,07331+132%

13Chaffee County, COCO20,83131+28%

14Grand County, COCO16,49632+138%

15Gunnison County, COCO17,43932+122%

16San Miguel County, COCO7,75332+77%

17Teller County, COCO24,75632+185%

18San Juan County, COCO81332+83%

19Baca County, COCO3,34732+89%

20Rio Blanco County, COCO6,68334+160%

21Dolores County, COCO2,46634+222%

22Pitkin County, COCO16,62535+84%

23Cheyenne County, COCO1,71337+83%

24Sedgwick County, COCO2,24737+32%

25Delta County, COCO32,17838+40%

26Larimer County, COCO377,29242+72%

27Mesa County, COCO162,84542+67%

28Fremont County, COCO50,03942+17%

29Moffat County, COCO13,12244+91%

30Douglas County, COCO399,39644+116%

31Archuleta County, COCO14,30644+19%

32Lincoln County, COCO5,64546+43%

33La Plata County, COCO56,89846+76%

34Summit County, COCO31,51747+81%

35Kit Carson County, COCO7,06948+40%

36Jefferson County, COCO580,45148+63%

37Montrose County, COCO44,59150+48%

38Phillips County, COCO4,42050+80%

39Boulder County, COCO328,56050+55%

40Logan County, COCO20,65451+60%

41Broomfield County, COCO79,17452–

42Yuma County, COCO9,89654+88%

43Montezuma County, COCO26,67854+117%

44Garfield County, COCO63,47460+64%

45Eagle County, COCO54,29160+28%

46Weld County, COCO378,42662+19%

47Huerfano County, COCO7,01163+1%

48El Paso County, COCO757,04063+43%

49Prowers County, COCO11,88464+13%

50Conejos County, COCO7,52966+10%

51Saguache County, COCO6,73267+6%

52Rio Grande County, COCO11,08767+8%

53Costilla County, COCO3,67967+23%

54Morgan County, COCO30,30667+22%

55Otero County, COCO17,68367+10%

56Lake County, COCO7,55268+16%

57Las Animas County, COCO14,39168+10%

58Pueblo County, COCO169,27769+9%

59Alamosa County, COCO16,68870+11%

60Bent County, COCO5,71671+17%

61Adams County, COCO554,66875+22%

62Crowley County, COCO5,67775+28%

63Denver County, COCO740,61376+2%

64Arapahoe County, COCO673,82076+53%

SHOWING 1–64 OF 64

Download CSV (full list, 64 rows)How this score is calculated

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