| Rank | Median Age ▲ | School District / Population |
| 1. | 21.90 | Riverdale School District 51J / 2,683 |
| 2. | 26.90 | Central School District 13J / 21,786 |
| 3. | 28.80 | Pine Creek School District 5 / 83 |
| 4. | 29.00 | Corvallis School District 509J / 65,503 |
| 5. | 29.10 | Double O School District 28 / 25 |
| 6. | 29.80 | Nyssa School District 26 / 5,135 |
| 7. | 30.00 | Umatilla School District 6 / 5,975 |
| 8. | 31.70 | Frenchglen School District 16 / 122 |
| 9. | 33.10 | Woodburn School District 103 / 27,277 |
| 9. | 33.10 | Hermiston School District 8 / 27,183 |
| 11. | 34.00 | Warrenton-Hammond School District 30 / 6,193 |
| 12. | 34.10 | Reynolds School District 7 / 75,406 |
| 13. | 34.20 | Hillsboro School District 1J / 129,769 |
| 14. | 34.40 | Arock School District 81 / 120 |
| 14. | 34.40 | David Douglas School District 40 / 66,173 |
| 16. | 34.70 | Jefferson County School District 509J / 16,035 |
| 17. | 35.10 | Forest Grove School District 15 / 34,942 |
| 18. | 35.30 | Salem-Keizer School District 24J / 245,673 |
| 19. | 35.50 | Eugene School District 4J / 152,154 |
| 20. | 35.60 | Beaverton School District 48J / 264,366 |
| 21. | 35.80 | Gervais School District 1 / 7,697 |
| 21. | 35.80 | Suntex School District 10 / 107 |
| 23. | 35.90 | McMinnville School District 40 / 40,061 |
| 24. | 36.40 | Ontario School District 8 / 17,865 |
| 24. | 36.40 | Milton-Freewater School District 7 / 11,973 |
| 26. | 36.60 | Dayton School District 8 / 6,121 |
| 27. | 36.70 | Pilot Rock School District 2 / 2,180 |
| 27. | 36.70 | Gresham-Barlow School District 1J / 76,766 |
| 29. | 36.90 | Portland School District 1J / 475,838 |
| 29. | 36.90 | Morrow School District 1 / 10,586 |
| 29. | 36.90 | Parkrose School District 3 / 26,781 |
| 29. | 36.90 | La Grande School District 1 / 16,920 |
| 33. | 37.00 | Bethel School District 52 / 38,809 |
| 33. | 37.00 | Stanfield School District 61 / 2,700 |
| 33. | 37.00 | North Marion School District 15 / 10,076 |
| 36. | 37.10 | Mount Angel School District 91 / 3,894 |
| 37. | 37.20 | Sherwood School District 88J / 30,038 |
| 38. | 37.30 | Greater Albany School District 8J / 62,421 |
| 39. | 37.50 | Centennial School District 28J / 41,180 |
| 39. | 37.50 | Springfield School District 19 / 74,794 |
| 41. | 37.60 | Vale School District 84 / 4,903 |
| 42. | 37.80 | North Powder School District 8J / 903 |
| 43. | 38.10 | Newberg School District 29J / 34,787 |
| 44. | 38.20 | Annex School District 29 / 482 |
| 45. | 38.30 | Creswell School District 40 / 8,962 |
| 46. | 38.40 | Juntura School District 12 / 108 |
| 47. | 38.60 | Klamath Falls City Schools / 23,121 |
| 48. | 38.90 | St. Paul School District 45 / 1,404 |
| 48. | 38.90 | Jefferson School District 14J / 6,782 |
| 50. | 39.00 | Silver Falls School District 4J / 19,876 |
| 51. | 39.10 | Molalla River School District 35 / 20,532 |
| 51. | 39.10 | Hood River County School District 1 / 22,620 |
| 53. | 39.30 | Pendleton School District 16 / 22,224 |
| 53. | 39.30 | North Clackamas School District 12 / 116,845 |
| 55. | 39.50 | Pinehurst School District 94 / 227 |
| 56. | 39.80 | Diamond School District 7 / 101 |
| 56. | 39.80 | Oregon City School District 62 / 54,859 |
| 58. | 40.00 | Gladstone School District 115 / 11,556 |
| 58. | 40.00 | Medford School District 549 / 86,642 |
| 60. | 40.10 | West Linn School District 3J / 47,012 |
| 61. | 40.20 | Tigard-Tualatin School District 23J / 79,788 |
| 61. | 40.20 | Harrisburg School District 7J / 5,258 |
| 63. | 40.40 | Echo School District 5 / 918 |
| 64. | 40.50 | Sutherlin School District 130 / 9,695 |
| 64. | 40.50 | St. Helens School District 502 / 20,169 |
| 64. | 40.50 | Dufur School District 29 / 1,386 |
| 67. | 40.60 | Amity School District 4J / 4,551 |
| 68. | 40.70 | Jordan Valley School District 3 / 469 |
| 69. | 40.80 | Central Linn School District 552 / 5,328 |
| 70. | 40.90 | Eagle Point School District 9 / 27,558 |
| 70. | 40.90 | Estacada School District 108 / 13,620 |
| 72. | 41.00 | Grants Pass School District 7 / 36,597 |
| 72. | 41.00 | Camas Valley School District 21J / 802 |
| 74. | 41.10 | Canby School District 86 / 30,466 |
| 74. | 41.10 | Redmond School District 2J / 46,775 |
| 76. | 41.20 | Union School District 5 / 2,266 |
| 77. | 41.30 | Bend-La Pine Administrative School District 1 / 110,491 |
| 77. | 41.30 | North Santiam School District 29J / 15,435 |
| 79. | 41.40 | Cascade School District 5 / 13,792 |
| 79. | 41.40 | Banks School District 13 / 6,489 |
| 81. | 41.70 | Sweet Home School District 55 / 14,797 |
| 81. | 41.70 | North Wasco School District 21 / 20,723 |
| 81. | 41.70 | Sheridan School District 48J / 7,055 |
| 81. | 41.70 | Monroe School District 1J / 3,460 |
| 85. | 41.80 | Dallas School District 2 / 20,422 |
| 86. | 42.30 | Clatskanie School District 6J / 5,410 |
| 87. | 42.70 | Tillamook School District 9 / 13,584 |
| 87. | 42.70 | Perrydale School District 21 / 895 |
| 89. | 42.80 | Corbett School District 39 / 4,266 |
| 89. | 42.80 | Culver School District 4 / 3,852 |
| 91. | 43.00 | Central Point School District 6 / 30,647 |
| 92. | 43.20 | Helix School District 1 / 467 |
| 93. | 43.50 | Scio School District 95 / 4,618 |
| 93. | 43.50 | Astoria School District 1 / 13,820 |
| 95. | 43.60 | Oregon Trail School District 46 / 28,409 |
| 95. | 43.60 | Lebanon Community School District 9 / 28,241 |
| 97. | 43.80 | Arlington School District 3 / 798 |
| 98. | 43.90 | Philomath School District 17J / 8,464 |
| 99. | 44.10 | Adrian School District 61 / 1,195 |
| 100. | 44.40 | Klamath County School District / 42,864 |
| 100. | 44.40 | Junction City School District 69 / 12,857 |
| 102. | 44.50 | Scappoose School District 1J / 14,580 |
| 103. | 44.60 | Ione School District 2 / 639 |
| 103. | 44.60 | Coos Bay School District 9 / 26,254 |
| 105. | 44.80 | Elgin School District 23 / 2,558 |
| 106. | 45.00 | North Douglas School District 22 / 2,600 |
| 106. | 45.00 | Ukiah School District 80 / 226 |
| 106. | 45.00 | Winston-Dillard School District 116 / 9,676 |
| 109. | 45.30 | Wallowa School District 12 / 1,879 |
| 109. | 45.30 | Roseburg School District 4 / 47,611 |
| 109. | 45.30 | South Lane School District 45J / 18,618 |
| 109. | 45.30 | Lake Oswego School District 7J / 40,866 |
| 113. | 45.40 | Vernonia School District 47J / 3,709 |
| 114. | 45.50 | Santiam Canyon School District 129J / 4,043 |
| 115. | 45.60 | Phoenix-Talent School District 4 / 24,791 |
| 115. | 45.60 | Marcola School District 79J / 2,029 |
| 117. | 45.70 | Ashland School District 5 / 24,494 |
| 118. | 45.80 | South Umpqua School District 19 / 12,196 |
| 118. | 45.80 | Gaston School District 511J / 2,995 |
| 120. | 45.90 | Yamhill-Carlton School District 1 / 6,678 |
| 121. | 46.10 | Fossil School District 21J / 834 |
| 121. | 46.10 | North Bend School District 13 / 16,122 |
| 123. | 46.20 | Harney County School District 3 / 5,589 |
| 123. | 46.20 | Colton School District 53 / 4,403 |
| 125. | 46.60 | Lakeview School District 7 / 5,511 |
| 126. | 46.70 | Seaside School District 10 / 12,214 |
| 127. | 46.80 | Fern Ridge School District 28J / 11,448 |
| 128. | 47.00 | Lowell School District 71 / 2,643 |
| 128. | 47.00 | Baker School District 5J / 13,694 |
| 130. | 47.10 | Ashwood School District 8 / 135 |
| 130. | 47.10 | Rainier School District 13 / 7,445 |
| 130. | 47.10 | Name N/A / 1,772 |
| 133. | 47.30 | Willamina School District 30J / 5,540 |
| 134. | 47.40 | Blachly School District 090 / 564 |
| 134. | 47.40 | Harney County Union High School District 1J / 1,664 |
| 136. | 47.50 | Knappa School District 4 / 3,322 |
| 136. | 47.50 | Cove School District 15 / 1,838 |
| 138. | 47.60 | Coquille School District 8 / 7,196 |
| 138. | 47.60 | Crook County School District / 20,856 |
| 140. | 47.70 | Alsea School District 7J / 1,084 |
| 140. | 47.70 | Riddle School District 70 / 2,567 |
| 140. | 47.70 | Athena-Weston School District 29J / 2,799 |
| 143. | 47.80 | Butte Falls School District 91 / 1,150 |
| 144. | 48.00 | Adel School District 21 / 90 |
| 145. | 48.50 | Prairie City School District 4 / 1,259 |
| 146. | 48.60 | Central Curry School District 1 / 5,405 |
| 147. | 48.90 | Falls City School District 57 / 1,216 |
| 148. | 49.20 | Sherman School District 1 / 1,790 |
| 149. | 49.70 | Pleasant Hill School District 1 / 6,554 |
| 150. | 49.80 | Sisters School District 6 / 8,149 |
| 151. | 49.90 | Jewell School District 8 / 931 |
| 151. | 49.90 | Harney County School District 4 / 908 |
| 151. | 49.90 | Powers School District 31 / 1,040 |
| 154. | 50.00 | Glide School District 12 / 5,810 |
| 155. | 50.10 | Mitchell School District 55 / 389 |
| 155. | 50.10 | North Lake School District 14 / 1,654 |
| 157. | 50.20 | Lincoln County School District / 46,338 |
| 158. | 50.60 | John Day School District 3 / 4,803 |
| 159. | 50.80 | South Harney School District 33 / 177 |
| 159. | 50.80 | Long Creek School District 17 / 417 |
| 161. | 50.90 | Myrtle Point School District 41 / 4,570 |
| 162. | 51.10 | Crow-Applegate-Lorane Sd 66 / 2,137 |
| 162. | 51.10 | McKenzie School District 68 / 2,410 |
| 164. | 51.40 | Neah-Kah-Nie School District 56 / 7,443 |
| 164. | 51.40 | Yoncalla School District 32 / 2,656 |
| 166. | 51.50 | Prospect School District 59 / 1,044 |
| 167. | 51.70 | Enterprise School District 21 / 2,891 |
| 168. | 51.90 | Glendale School District 77 / 2,665 |
| 169. | 52.30 | Imbler School District 11 / 1,364 |
| 170. | 52.80 | Oakland School District 1 / 2,675 |
| 170. | 52.80 | Condon School District 25J / 1,120 |
| 172. | 53.00 | McDermitt School District 51 / 78 |
| 172. | 53.00 | Reedsport School District 105 / 5,507 |
| 174. | 53.10 | Three Rivers School District / 47,349 |
| 175. | 53.40 | Paisley School District 11 / 531 |
| 176. | 53.80 | Drewsey School District 13 / 141 |
| 177. | 53.90 | Monument School District 8 / 436 |
| 178. | 54.20 | Brookings-Harbor School District 17 / 13,720 |
| 179. | 54.30 | Elkton School District 34 / 1,424 |
| 180. | 54.60 | Oakridge School District 76 / 4,396 |
| 181. | 54.70 | Dayville School District 16J / 410 |
| 182. | 54.90 | Rogue River School District 35 / 9,105 |
| 182. | 54.90 | South Wasco County School District 1 / 2,142 |
| 184. | 55.30 | Plush School District 18 / 68 |
| 185. | 55.40 | Nestucca Valley School District 101J / 4,307 |
| 186. | 55.90 | Huntington School District 16J / 435 |
| 187. | 56.00 | Black Butte School District 41 / 432 |
| 188. | 56.50 | Burnt River School District 30J / 395 |
| 189. | 56.70 | Mapleton School District 32 / 1,456 |
| 190. | 56.80 | Joseph School District 6 / 2,072 |
| 191. | 56.90 | Days Creek School District 15 / 1,232 |
| 192. | 57.30 | Siuslaw School District 97J / 14,479 |
| 192. | 57.30 | Pine-Eagle School District 61 / 1,473 |
| 194. | 58.40 | Harper School District 66 / 324 |
| 194. | 58.40 | Bandon School District 54 / 7,227 |
| 196. | 58.50 | Troy School District 54 / 51 |
| 197. | 59.30 | Spray School District 1 / 314 |
| 198. | 60.40 | Port Orford-Langlois School District 2J / 3,485 |
Please note that we only rank locations with 'Median Age' data. The rank above might not be a complete list. Locations without 'Median Age' data are not listed.
