RANKING · 2020 CENSUS · 64 SHOWN OF 64

Oldest housing stock, Colorado counties · 2020

Colorado counties ranked by oldest median year of construction (2020 ACS). This list covers the 64 counties in Colorado that qualify, ranked against each other statewide. The median across all 64 is 1982.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2010 2020 2024

RANKPLACESTATEPOPMEDIAN YEAR BUILTVS 1990

01Sedgwick County, COCO2,2471952+1%

02Bent County, COCO5,71619580%

03Washington County, COCO4,7321959+1%

04Yuma County, COCO9,89619590%

05Otero County, COCO17,6831961+1%

06Kiowa County, COCO1,41219620%

07Logan County, COCO20,65419620%

08Crowley County, COCO5,6771963+1%

09Baca County, COCO3,34719640%

10Lincoln County, COCO5,6451966+1%

11Phillips County, COCO4,42019660%

12Denver County, COCO740,6131970+1%

13Prowers County, COCO11,8841970+1%

14Las Animas County, COCO14,3911971+1%

15Cheyenne County, COCO1,7131972+1%

16Kit Carson County, COCO7,0691972+1%

17Lake County, COCO7,5521973+1%

18Clear Creek County, COCO8,99419730%

19Huerfano County, COCO7,0111973+1%

20Morgan County, COCO30,3061973+1%

21Pueblo County, COCO169,2771973+1%

22Conejos County, COCO7,5291975+1%

23Dolores County, COCO2,4661975+1%

24Moffat County, COCO13,12219770%

25San Juan County, COCO8131977+2%

26Costilla County, COCO3,67919780%

27Rio Blanco County, COCO6,68319780%

28Rio Grande County, COCO11,0871978+1%

29Jefferson County, COCO580,45119790%

30Fremont County, COCO50,0391980+1%

31Delta County, COCO32,1781981+1%

32Saguache County, COCO6,7321981+1%

33Alamosa County, COCO16,6881982+1%

34Jackson County, COCO1,2111982+1%

35Montezuma County, COCO26,6781982+1%

36Hinsdale County, COCO7531983+1%

37Arapahoe County, COCO673,82019840%

38Boulder County, COCO328,5601984+1%

39Gunnison County, COCO17,4391984+1%

40Mesa County, COCO162,8451985+1%

41Pitkin County, COCO16,6251985+1%

42El Paso County, COCO757,0401987+1%

43Summit County, COCO31,51719870%

44Adams County, COCO554,6681988+1%

45Custer County, COCO5,5901988+1%

46Gilpin County, COCO6,0731988+1%

47Mineral County, COCO9101988+1%

48Teller County, COCO24,7561988+1%

49Grand County, COCO16,4961989+1%

50La Plata County, COCO56,8981989+1%

51Routt County, COCO25,3291989+1%

52Montrose County, COCO44,5911990+1%

53Chaffee County, COCO20,8311990+1%

54Larimer County, COCO377,2921990+1%

55Park County, COCO18,3141991+1%

56Eagle County, COCO54,2911991+1%

57Garfield County, COCO63,4741991+1%

58Ouray County, COCO5,2651993+1%

59San Miguel County, COCO7,7531993+1%

60Elbert County, COCO30,5341994+1%

61Weld County, COCO378,4261994+1%

62Archuleta County, COCO14,3061995+1%

63Broomfield County, COCO79,1741999–

64Douglas County, COCO399,3961999+1%

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