| Rank | Percentage of Population Age 55 to 64 ▼ | School District / Population |
| 1. | 32.9% | Hinsdale County School District RE-1 / 489 |
| 2. | 28.0% | Moffat Consolidated School District 2 / 1,180 |
| 3. | 24.9% | Aguilar Reorganized School District 6 / 1,118 |
| 4. | 24.8% | Woodlin School District R-104 / 294 |
| 5. | 24.7% | Creede Consolidated School District 1 / 1,020 |
| 6. | 24.7% | Cotopaxi School District RE-3 / 2,706 |
| 7. | 24.5% | Sangre de Cristo School District RE-22J / 1,218 |
| 8. | 24.0% | Park County School District RE-2 / 5,970 |
| 9. | 23.2% | Mancos School District RE-6 / 3,073 |
| 10. | 23.0% | Custer County School District C-1 / 3,597 |
| 11. | 22.1% | Mountain Valley School District RE-1 / 1,310 |
| 12. | 20.9% | Manitou Springs School District 14 / 7,987 |
| 13. | 19.9% | Buena Vista School District R-31 / 7,984 |
| 14. | 19.8% | Silverton School District 1 / 752 |
| 15. | 19.4% | Dolores School District RE-4A / 3,801 |
| 16. | 19.2% | Gilpin County School District RE-1 / 2,585 |
| 17. | 19.2% | Briggsdale School District RE-10 / 663 |
| 18. | 19.1% | Woodland Park School District RE-2 / 17,742 |
| 19. | 18.8% | Ridgway School District R-2 / 2,422 |
| 20. | 18.8% | Huerfano School District RE-1 / 5,581 |
| 21. | 18.7% | Bayfield School District R-10-JT / 7,541 |
| 22. | 18.5% | Plateau Valley School District 50 / 2,705 |
| 23. | 18.5% | Primero Reorganized School District 2 / 1,370 |
| 24. | 18.5% | Archuleta County School District 50-JT / 11,653 |
| 25. | 18.4% | Norwood School District R-2J / 2,239 |
| 26. | 17.6% | Clear Creek School District RE-1 / 9,088 |
| 27. | 17.4% | Cheyenne Mountain School District 12 / 21,817 |
| 28. | 17.2% | Sanford School District 6J / 1,352 |
| 29. | 17.0% | Sierra Grande School District R-30 / 1,688 |
| 30. | 17.0% | La Veta School District RE-2 / 1,367 |
| 31. | 16.9% | Eads School District RE-1 / 1,345 |
| 32. | 16.8% | Del Norte School District C-7 / 3,483 |
| 33. | 16.8% | Ouray School District R-1 / 1,669 |
| 34. | 16.6% | Aspen School District 1 / 12,331 |
| 35. | 16.5% | Plateau School District RE-5 / 667 |
| 36. | 16.4% | Edison School District 54-JT / 256 |
| 37. | 16.4% | Peyton School District 23-JT / 3,584 |
| 38. | 16.0% | Elbert School District 200 / 1,749 |
| 39. | 16.0% | Cripple Creek-Victor School District RE-1 / 5,079 |
| 40. | 16.0% | Kiowa School District C-2 / 2,470 |
| 41. | 15.9% | Big Sandy School District 100J / 1,822 |
| 42. | 15.9% | East Grand School District 2 / 11,173 |
| 43. | 15.8% | Pawnee School District RE-12 / 613 |
| 44. | 15.7% | Platte Valley School District RE-3 / 757 |
| 45. | 15.6% | Park School District R-3 / 11,900 |
| 46. | 15.5% | Weldon Valley School District RE-20J / 800 |
| 47. | 15.4% | Lone Star School District 101 / 195 |
| 48. | 15.3% | North Park School District R-1 / 1,464 |
| 49. | 15.3% | Swink School District 33 / 1,325 |
| 50. | 15.2% | Dolores County School District RE-2 / 2,065 |
| 51. | 15.1% | Sargent School District RE-33J / 1,081 |
| 52. | 15.0% | Pueblo County School District 70 / 47,531 |
| 53. | 14.9% | Delta County School District 50J / 31,170 |
| 54. | 14.8% | Centennial School District R-1 / 1,848 |
| 55. | 14.8% | South Routt School District RE-3 / 3,721 |
| 56. | 14.7% | Otis School District R-3 / 890 |
| 57. | 14.6% | Meeker School District RE1 / 3,856 |
| 58. | 14.5% | Steamboat Springs School District RE-2 / 16,165 |
| 59. | 14.5% | Trinidad School District 1 / 10,456 |
| 60. | 14.5% | Elizabeth School District C-1 / 13,615 |
| 61. | 14.4% | Buffalo School District RE-4 / 889 |
| 61. | 14.4% | Agate School District 300 / 646 |
| 63. | 14.4% | McClave School District RE-2 / 702 |
| 64. | 14.0% | Littleton School District 6 / 90,627 |
| 65. | 13.9% | West Grand School District 1-JT / 3,586 |
| 66. | 13.9% | Holly School District RE-3 / 1,238 |
| 67. | 13.9% | Hi-Plains School District R-23 / 483 |
| 68. | 13.9% | Florence School District RE-2 / 14,856 |
| 69. | 13.8% | Springfield School District RE-4 / 1,878 |
| 69. | 13.8% | Haxtun School District RE-2J / 1,581 |
| 71. | 13.8% | Salida School District R-32 / 9,595 |
| 72. | 13.7% | Montrose County School District RE-1J / 37,696 |
| 73. | 13.7% | Campo School District RE-6 / 263 |
| 73. | 13.7% | Vilas School District RE-5 / 168 |
| 75. | 13.7% | Arriba-Flagler School District C-20 / 1,184 |
| 76. | 13.6% | Platte Canyon School District 1 / 10,316 |
| 77. | 13.5% | Lewis-Palmer School District 38 / 27,492 |
| 78. | 13.4% | Brush School District RE-2J / 7,891 |
| 79. | 13.3% | Manzanola School District 3J / 1,147 |
| 80. | 13.3% | East Otero School District R-1 / 8,608 |
| 81. | 13.3% | West End School District RE-2 / 1,846 |
| 82. | 13.0% | Jefferson County School District R-1 / 530,782 |
| 82. | 13.0% | Rocky Ford School District R-2 / 5,307 |
| 84. | 12.9% | Thompson School District R-2J / 100,255 |
| 85. | 12.7% | Durango School District 9-R / 37,419 |
| 86. | 12.7% | Canon City School District RE-1 / 29,840 |
| 87. | 12.6% | Montezuma-Cortez School District RE-1 / 18,405 |
| 88. | 12.5% | Pritchett School District RE-3 / 359 |
| 89. | 12.5% | Telluride School District R-1 / 5,687 |
| 90. | 12.5% | Roaring Fork School District RE-1 / 37,657 |
| 91. | 12.4% | Wray School District RD-2 / 4,080 |
| 92. | 12.4% | Prairie School District RE-11 / 548 |
| 93. | 12.4% | Windsor School District RE-4 / 19,665 |
| 94. | 12.3% | Mesa County Valley School District 51 / 138,863 |
| 95. | 12.2% | Monte Vista School District C-8 / 6,945 |
| 96. | 12.2% | Weld County School District RE-1 / 8,947 |
| 96. | 12.2% | Las Animas School District RE-1 / 5,248 |
| 98. | 12.1% | Moffat County School District RE-1 / 13,519 |
| 99. | 12.0% | Walsh School District RE-1 / 1,165 |
| 100. | 12.0% | Yuma School District 1 / 4,687 |
| 101. | 12.0% | Frenchman School District RE-3 / 971 |
| 102. | 11.9% | Hayden School District RE-1 / 2,920 |
| 103. | 11.8% | Julesburg School District RE-1 / 1,630 |
| 104. | 11.8% | Gunnison Watershed School District RE-1J / 14,990 |
| 105. | 11.7% | North Conejos School District RE-1J / 4,805 |
| 105. | 11.7% | Calhan School District RJ-1 / 3,192 |
| 107. | 11.7% | Lamar School District RE-2 / 9,374 |
| 108. | 11.7% | Arickaree School District R-2 / 659 |
| 109. | 11.6% | Lake County School District R-1 / 7,039 |
| 110. | 11.6% | Akron School District R-1 / 2,635 |
| 111. | 11.6% | Ignacio School District 11-JT / 5,672 |
| 112. | 11.5% | Holyoke School District RE-1J / 2,932 |
| 113. | 11.4% | Summit School District RE-1 / 26,947 |
| 114. | 11.4% | Colorado Springs School District 11 / 221,148 |
| 115. | 11.3% | St. Vrain Valley School District RE 1J / 145,038 |
| 116. | 11.3% | Limon School District RE-4J / 3,272 |
| 117. | 11.2% | Cheyenne County School District RE-5 / 1,647 |
| 118. | 11.2% | Genoa-Hugo School District C-113 / 1,328 |
| 119. | 11.2% | De Beque School District 49-JT / 803 |
| 120. | 11.2% | Boulder Valley School District RE-2 / 210,986 |
| 121. | 11.1% | Deer Trail School District 26J / 693 |
| 122. | 11.1% | Pueblo City School District 60 / 108,431 |
| 123. | 11.1% | Cheraw School District 31 / 605 |
| 124. | 11.0% | South Conejos School District RE-10 / 2,047 |
| 125. | 11.0% | Liberty School District J-4 / 599 |
| 126. | 10.9% | Cherry Creek School District 5 / 257,871 |
| 127. | 10.9% | Strasburg School District 31J / 5,107 |
| 128. | 10.8% | Garfield County School District 16 / 6,270 |
| 129. | 10.8% | Hanover School District 28 / 1,863 |
| 129. | 10.8% | Bennett School District 29-J / 5,683 |
| 131. | 10.8% | Granada School District RE-1 / 1,256 |
| 132. | 10.7% | Englewood School District 1 / 25,674 |
| 133. | 10.6% | Burlington School District RE-6J / 5,272 |
| 134. | 10.5% | Crowley County School District RE-1-J / 5,590 |
| 135. | 10.4% | Alamosa School District RE-11J / 14,234 |
| 136. | 10.4% | Poudre School District R-1 / 179,859 |
| 137. | 10.4% | Keenesburg School District RE-3J / 11,144 |
| 138. | 10.3% | Wiggins School District RE-50J / 2,466 |
| 139. | 10.2% | Academy School District 20 / 96,799 |
| 140. | 10.2% | Valley School District RE-1 / 19,776 |
| 141. | 10.2% | Weld County School District RE-8 / 12,657 |
| 141. | 10.2% | Sheridan School District 2 / 7,959 |
| 143. | 10.1% | Plainview School District RE-2 / 298 |
| 144. | 10.1% | Hoehne Reorganized School District 3 / 2,128 |
| 144. | 10.1% | Platte Valley School District RE-7 / 4,789 |
| 146. | 10.0% | Douglas County School District RE-1 / 275,900 |
| 147. | 10.0% | Denver County School District 1 / 578,087 |
| 148. | 9.9% | Westminster School District 50 / 69,912 |
| 149. | 9.9% | Center School District 26-JT / 3,775 |
| 150. | 9.8% | Ellicott School District 22 / 3,866 |
| 151. | 9.7% | Idalia School District RJ-3 / 555 |
| 152. | 9.6% | Johnstown-Milliken School District RE-5J / 14,925 |
| 153. | 9.6% | Mapleton School District 1 / 28,961 |
| 153. | 9.6% | Garfield School District RE-2 / 23,918 |
| 155. | 9.5% | Stratton School District R-4 / 1,033 |
| 156. | 9.5% | Byers School District 32J / 2,280 |
| 157. | 9.4% | Adams-Arapahoe School District 28J / 204,199 |
| 158. | 9.4% | Northglenn-Thornton School District 12 / 200,740 |
| 159. | 9.2% | Eagle County School District RE 50 / 41,689 |
| 160. | 9.1% | Fowler School District R-4J / 2,420 |
| 161. | 9.0% | Greeley School District 6 / 112,663 |
| 162. | 8.9% | Wiley School District RE-13-JT / 1,041 |
| 163. | 8.8% | Eaton School District RE-2 / 9,437 |
| 164. | 8.8% | Fort Morgan School District RE-3 / 16,911 |
| 165. | 8.8% | Adams County School District 14 / 35,567 |
| 166. | 8.7% | Rangely School District RE-4 / 2,638 |
| 167. | 8.7% | Ault-Highland School District RE-9 / 5,560 |
| 168. | 8.7% | Brighton School District 27J / 70,552 |
| 169. | 8.5% | Widefield School District 3 / 43,080 |
| 170. | 8.3% | Falcon School District 49 / 69,880 |
| 171. | 8.2% | Kim Reorganized School District 88 / 392 |
| 172. | 8.1% | Branson Reorganized School District 82 / 211 |
| 173. | 7.7% | Kit Carson School District R-1 / 547 |
| 174. | 7.5% | Bethune School District R-5 / 545 |
| 175. | 7.4% | Harrison School District 2 / 66,847 |
| 176. | 6.5% | Miami-Yoder School District 60-JT / 1,919 |
| 177. | 5.8% | Fountain School District 8 / 30,129 |
| 178. | 5.8% | Karval School District RE-23 / 362 |
Please note that we only rank locations with 'Percentage of Population Age 55 to 64' data. The rank above might not be a complete list. Locations without 'Percentage of Population Age 55 to 64' data are not listed.
*ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.
