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About this map

Half of residents are older than this, half younger. Retirement areas run 50+, college towns can be in the low 20s.

Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024).

U.S.
38.9
Colorado
37.7
Rankings
Full list

Top and bottom zip codes in Colorado

Zip codes with 1,000+ residents

Oldest zip codes (highest median age)

See all
  1. 181055La Veta68.5
  2. 281131Crestone64.9
  3. 381019Colorado City63.2
  4. 480482Winter Park63.1
  5. 581410Austin61.2
  6. 681223Cotopaxi59.6
  7. 781615Snowmass Village59
  8. 881252Westcliffe58.7
  9. 980478Tabernash58.7
  10. 1080809Cascade58.7

Youngest zip codes (lowest median age)

See all
  1. 180310Boulder19.3
  2. 280840Usaf Academy21
  3. 380913Colorado Springs21.9
  4. 480521Fort Collins22.9
  5. 580902Colorado Springs23.5
  6. 680302Boulder24.9
  7. 781334Towaoc27.8
  8. 880631Greeley28.7
  9. 980951Colorado Springs29.2
  10. 1080303Boulder29.3

Median age by county in Colorado

  1. 1Custer County58.2
  2. 2Dolores County56.7
  3. 3Mineral County56.4
  4. 4Ouray County55.4
  5. 5Huerfano County55.3
  6. 6Teller County52.2
  7. 7Archuleta County52.1
  8. 8Jackson County51.6
  9. 9Park County51.2
  10. 10Costilla County50.5
  11. 11Saguache County49.6
  12. 12Clear Creek County49.1
  13. 13Chaffee County48.7
  14. 14Hinsdale County48.5
  15. 15Delta County48.1
  16. 16Gilpin County47.2
  17. 17Pitkin County47.2
  18. 18Las Animas County46.6
  19. 19Montrose County46.1
  20. 20Grand County45.4
  21. 21Kiowa County45.4
  22. 22Elbert County45
  23. 23Fremont County44.7
  24. 24Montezuma County44.5
  25. 25Routt County43.4
  26. 26San Miguel County43.3
  27. 27La Plata County43.2
  28. 28Baca County43
  29. 29Cheyenne County42.9
  30. 30Sedgwick County42.6
  31. 31Otero County41.8
  32. 32Rio Grande County41.7
  33. 33Mesa County41.3
  34. 34Washington County41.3
  35. 35Lincoln County40.9
  36. 36Phillips County40.9
  37. 37Crowley County40.8
  38. 38Bent County40.6
  39. 39Conejos County40.6
  40. 40Jefferson County40.5
  41. 41Yuma County40.5
  42. 42Pueblo County40.4
  43. 43Moffat County40.1
  44. 44Eagle County39.7
  45. 45Douglas County39.6
  46. 46Kit Carson County39.5
  47. 47Summit County39.5
  48. 48Logan County39.2
  49. 49Broomfield County38.6
  50. 50Rio Blanco County37.8
  51. 51Boulder County37.7
  52. 52Prowers County37.7
  53. 53Garfield County37.6
  54. 54Gunnison County37.5
  55. 55Morgan County37.5
  56. 56San Juan County37.5
  57. 57Arapahoe County37.3
  58. 58Lake County37.3
  59. 59Larimer County36.8
  60. 60Denver County35.3
  61. 61Weld County35.3
  62. 62El Paso County35.1
  63. 63Adams County34.8
  64. 64Alamosa County33.2

Questions about this map

Which zip code has the highest median age in Colorado?

Among zip codes with at least 1,000 residents, 81055 (La Veta, CO) has the highest: 68.5.

Which zip code has the lowest median age in Colorado?

80310 (Boulder, CO) has the lowest: 19.3.

What is the median age for the United States?

38.9; in Colorado it is 37.7.

Where does this data come from?

U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024). Half of residents are older than this, half younger. Retirement areas run 50+, college towns can be in the low 20s.

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