RANKING · 1990 CENSUS · 63 SHOWN OF 63

Least educated, Colorado counties · 1990

Colorado counties with the smallest share of adults 25+ holding a bachelor's degree or higher (1990 ACS). This list covers the 63 counties in Colorado that qualify, ranked against each other statewide. The median across all 63 is 16.4%.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPBACHELOR'S DEGREE OR HIGHERVS –

01Crowley County, COCO5,6778.0%–

02Sedgwick County, COCO2,2478.6%–

03Kiowa County, COCO1,4129.1%–

04Dolores County, COCO2,4669.8%–

05Costilla County, COCO3,67910.5%–

06Conejos County, COCO7,52910.7%–

07Morgan County, COCO30,30611.7%–

08Fremont County, COCO50,03911.8%–

09Washington County, COCO4,73211.8%–

10Cheyenne County, COCO1,71311.9%–

11Prowers County, COCO11,88412.2%–

12Huerfano County, COCO7,01112.6%–

13Las Animas County, COCO14,39112.7%–

14Lincoln County, COCO5,64512.9%–

15Adams County, COCO554,66813.0%–

16Otero County, COCO17,68313.0%–

17Yuma County, COCO9,89613.4%–

18Baca County, COCO3,34713.6%–

19Delta County, COCO32,17813.6%–

20Pueblo County, COCO169,27714.0%–

21Logan County, COCO20,65414.2%–

22Phillips County, COCO4,42014.2%–

23Saguache County, COCO6,73214.4%–

24Bent County, COCO5,71614.6%–

25Chaffee County, COCO20,83115.2%–

26Jackson County, COCO1,21115.3%–

27Rio Blanco County, COCO6,68315.4%–

28Montrose County, COCO44,59115.4%–

29Kit Carson County, COCO7,06915.8%–

30Montezuma County, COCO26,67815.9%–

31Lake County, COCO7,55216.2%–

32Moffat County, COCO13,12216.4%–

33Mesa County, COCO162,84517.4%–

34Rio Grande County, COCO11,08717.5%–

35Mineral County, COCO91017.9%–

36Weld County, COCO378,42618.4%–

37Custer County, COCO5,59019.2%–

38Archuleta County, COCO14,30619.7%–

39Elbert County, COCO30,53419.8%–

40Garfield County, COCO63,47421.6%–

41Park County, COCO18,31422.4%–

42San Juan County, COCO81324.0%–

43Alamosa County, COCO16,68824.1%–

44El Paso County, COCO757,04025.8%–

45Teller County, COCO24,75626.4%–

46Ouray County, COCO5,26527.9%–

47La Plata County, COCO56,89828.1%–

48Denver County, COCO740,61329.0%–

49Gilpin County, COCO6,07329.5%–

50Grand County, COCO16,49630.2%–

51Jefferson County, COCO580,45130.7%–

52Clear Creek County, COCO8,99431.2%–

53Hinsdale County, COCO75332.0%–

54Larimer County, COCO377,29232.3%–

55Eagle County, COCO54,29133.0%–

56Routt County, COCO25,32934.7%–

57Arapahoe County, COCO673,82035.2%–

58Gunnison County, COCO17,43936.9%–

59Summit County, COCO31,51739.7%–

60San Miguel County, COCO7,75340.3%–

61Douglas County, COCO399,39640.7%–

62Boulder County, COCO328,56042.1%–

63Pitkin County, COCO16,62549.8%–

SHOWING 1–63 OF 63

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