RANKING · 2020 CENSUS · 56 SHOWN OF 56

Most segregated, Colorado counties · 2020

Colorado counties ranked by the CensusEasy Segregation Score, the White vs non-White index of dissimilarity across census tracts (2023 ACS). Higher means residents are more sorted into separate neighborhoods. This list covers the 56 counties in Colorado that qualify, ranked against each other statewide.

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RELATEDOldest by median age Youngest by median age Most foreign-born residents Highest uninsured rate Most women Most men

RANKPLACESTATEPOPSEGREGATION SCOREVS 2000

01Saguache County, COCO6,73251–

02Denver County, COCO740,61346–

03Fremont County, COCO50,03943–

04Lake County, COCO7,55240–

05Arapahoe County, COCO673,82037–

06Huerfano County, COCO7,01136–

07Lincoln County, COCO5,64536–

08Montrose County, COCO44,59135–

09Weld County, COCO378,42634–

10Adams County, COCO554,66833–

11Costilla County, COCO3,67933–

12Morgan County, COCO30,30632–

13San Miguel County, COCO7,75332–

14Gunnison County, COCO17,43930–

15Alamosa County, COCO16,68830–

16Clear Creek County, COCO8,99430–

17Eagle County, COCO54,29130–

18Summit County, COCO31,51730–

19Montezuma County, COCO26,67829–

20El Paso County, COCO757,04028–

21Phillips County, COCO4,42028–

22Jefferson County, COCO580,45127–

23Boulder County, COCO328,56027–

24Moffat County, COCO13,12227–

25Delta County, COCO32,17826–

26Rio Grande County, COCO11,08725–

27Conejos County, COCO7,52925–

28Grand County, COCO16,49625–

29Routt County, COCO25,32924–

30Chaffee County, COCO20,83124–

31Mesa County, COCO162,84524–

32Pueblo County, COCO169,27723–

33Pitkin County, COCO16,62523–

34Otero County, COCO17,68323–

35Logan County, COCO20,65422–

36Larimer County, COCO377,29222–

37Elbert County, COCO30,53420–

38Kit Carson County, COCO7,06918–

39Washington County, COCO4,73217–

40Douglas County, COCO399,39617–

41Bent County, COCO5,71617–

42La Plata County, COCO56,89817–

43Teller County, COCO24,75616–

44Prowers County, COCO11,88416–

45Garfield County, COCO63,47416–

46Las Animas County, COCO14,39115–

47Broomfield County, COCO79,17415–

48Park County, COCO18,31415–

49Gilpin County, COCO6,07312–

50Ouray County, COCO5,26511–

51Archuleta County, COCO14,3069–

52Rio Blanco County, COCO6,6838–

53Yuma County, COCO9,8966–

54Crowley County, COCO5,6774–

55Baca County, COCO3,3474–

56Custer County, COCO5,5902–

SHOWING 1–56 OF 56

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