| Rank | Median Age ▲ | School District / Population |
| 1. | 19.70 | Pine Creek School District 5 / 75 |
| 2. | 21.00 | Riverdale School District 51J / 2,369 |
| 3. | 23.30 | Helix School District 1 / 557 |
| 4. | 28.10 | Central School District 13J / 20,938 |
| 5. | 28.70 | Corvallis School District 509J / 64,355 |
| 6. | 30.30 | Umatilla School District 6 / 5,893 |
| 7. | 30.50 | Echo School District 5 / 871 |
| 8. | 31.70 | Frenchglen School District 16 / 94 |
| 9. | 31.90 | Stanfield School District 61 / 2,643 |
| 10. | 32.00 | Woodburn School District 103 / 26,740 |
| 11. | 32.90 | Hillsboro School District 1J / 122,303 |
| 12. | 33.10 | Forest Grove School District 15 / 32,552 |
| 13. | 33.20 | Hermiston School District 8 / 26,245 |
| 14. | 33.70 | Nyssa School District 26 / 4,891 |
| 15. | 33.80 | Centennial School District 28J / 42,069 |
| 16. | 34.00 | Reynolds School District 7 / 67,067 |
| 17. | 34.10 | Mount Angel School District 91 / 3,949 |
| 17. | 34.10 | South Harney School District 33 / 357 |
| 19. | 34.70 | Arock School District 81 / 142 |
| 20. | 35.00 | Culver School District 4 / 3,453 |
| 21. | 35.10 | Annex School District 29 / 505 |
| 21. | 35.10 | Beaverton School District 48J / 248,747 |
| 23. | 35.20 | Salem-Keizer School District 24J / 238,869 |
| 23. | 35.20 | David Douglas School District 40 / 58,367 |
| 25. | 35.30 | McMinnville School District 40 / 38,882 |
| 26. | 35.40 | St. Paul School District 45 / 1,361 |
| 27. | 35.50 | Morrow School District 1 / 10,545 |
| 27. | 35.50 | Parkrose School District 3 / 26,748 |
| 29. | 35.60 | Ontario School District 8 / 19,146 |
| 30. | 35.80 | Eugene School District 4J / 148,304 |
| 30. | 35.80 | Sherwood School District 88J / 27,360 |
| 32. | 35.90 | Central Linn School District 552 / 5,499 |
| 33. | 36.00 | Gresham-Barlow School District 1J / 73,695 |
| 34. | 36.10 | Jefferson County School District 509J / 15,934 |
| 34. | 36.10 | Springfield School District 19 / 73,589 |
| 36. | 36.30 | Portland School District 1J / 449,014 |
| 37. | 36.40 | Arlington School District 3 / 768 |
| 38. | 36.50 | Sheridan School District 48J / 6,956 |
| 39. | 36.60 | Newberg School District 29J / 33,582 |
| 40. | 36.90 | Bethel School District 52 / 36,817 |
| 40. | 36.90 | Greater Albany School District 8J / 58,809 |
| 42. | 37.10 | Dayton School District 8 / 5,544 |
| 43. | 37.30 | La Grande School District 1 / 16,988 |
| 43. | 37.30 | Hood River County School District 1 / 21,706 |
| 45. | 37.40 | Tigard-Tualatin School District 23J / 76,731 |
| 46. | 37.50 | Klamath Falls City Schools / 23,617 |
| 47. | 37.60 | Warrenton-Hammond School District 30 / 6,056 |
| 47. | 37.60 | Harrisburg School District 7J / 5,471 |
| 47. | 37.60 | St. Helens School District 502 / 19,692 |
| 47. | 37.60 | Silver Falls School District 4J / 19,482 |
| 51. | 37.70 | Gervais School District 1 / 5,345 |
| 52. | 37.90 | Vernonia School District 47J / 4,167 |
| 53. | 38.10 | North Clackamas School District 12 / 112,495 |
| 53. | 38.10 | North Marion School District 15 / 9,070 |
| 55. | 38.60 | Molalla River School District 35 / 17,726 |
| 56. | 38.80 | Cascade School District 5 / 13,334 |
| 56. | 38.80 | Milton-Freewater School District 7 / 11,801 |
| 58. | 38.90 | Oregon City School District 62 / 54,089 |
| 58. | 38.90 | West Linn School District 3J / 45,488 |
| 58. | 38.90 | Pendleton School District 16 / 21,960 |
| 61. | 39.10 | Scio School District 95 / 3,591 |
| 61. | 39.10 | Vale School District 84 / 4,414 |
| 61. | 39.10 | Bend-La Pine Administrative School District 1 / 105,659 |
| 64. | 39.30 | Yamhill-Carlton School District 1 / 6,931 |
| 65. | 39.40 | Adrian School District 61 / 1,265 |
| 66. | 39.50 | Suntex School District 10 / 40 |
| 66. | 39.50 | Dallas School District 2 / 20,237 |
| 68. | 39.60 | North Powder School District 8J / 735 |
| 69. | 39.80 | Jefferson School District 14J / 6,512 |
| 70. | 39.90 | Falls City School District 57 / 1,379 |
| 70. | 39.90 | Alsea School District 7J / 1,211 |
| 72. | 40.00 | Medford School District 549 / 84,284 |
| 72. | 40.00 | Jordan Valley School District 3 / 480 |
| 74. | 40.10 | Harney County Union High School District 1J / 1,429 |
| 75. | 40.50 | Central Point School District 6 / 28,462 |
| 76. | 40.60 | Name N/A / 1,513 |
| 76. | 40.60 | Lebanon Community School District 9 / 28,814 |
| 76. | 40.60 | Philomath School District 17J / 8,516 |
| 79. | 40.70 | Estacada School District 108 / 13,792 |
| 79. | 40.70 | Fossil School District 21J / 754 |
| 79. | 40.70 | Crow-Applegate-Lorane Sd 66 / 2,342 |
| 82. | 40.80 | Redmond School District 2J / 43,733 |
| 82. | 40.80 | Ashwood School District 8 / 180 |
| 84. | 40.90 | Winston-Dillard School District 116 / 10,129 |
| 84. | 40.90 | Monument School District 8 / 519 |
| 84. | 40.90 | Gladstone School District 115 / 10,595 |
| 84. | 40.90 | Banks School District 13 / 6,461 |
| 84. | 40.90 | Tillamook School District 9 / 13,708 |
| 89. | 41.00 | Grants Pass School District 7 / 35,721 |
| 90. | 41.10 | Amity School District 4J / 3,791 |
| 91. | 41.20 | Astoria School District 1 / 14,286 |
| 91. | 41.20 | Creswell School District 40 / 8,984 |
| 93. | 41.30 | Eagle Point School District 9 / 25,974 |
| 94. | 41.40 | Junction City School District 69 / 12,426 |
| 94. | 41.40 | North Wasco School District 21 / 20,409 |
| 96. | 41.60 | Rainier School District 13 / 7,857 |
| 97. | 41.70 | Union School District 5 / 2,423 |
| 97. | 41.70 | South Lane School District 45J / 18,755 |
| 99. | 41.80 | Lowell School District 71 / 2,545 |
| 99. | 41.80 | Harper School District 66 / 263 |
| 101. | 42.00 | Pilot Rock School District 2 / 2,008 |
| 102. | 42.10 | Gaston School District 511J / 3,148 |
| 102. | 42.10 | Corbett School District 39 / 3,830 |
| 102. | 42.10 | Canby School District 86 / 29,765 |
| 105. | 42.20 | North Santiam School District 29J / 15,541 |
| 106. | 42.30 | Pinehurst School District 94 / 241 |
| 107. | 42.50 | Oregon Trail School District 46 / 26,860 |
| 108. | 42.70 | Diamond School District 7 / 160 |
| 108. | 42.70 | Willamina School District 30J / 5,386 |
| 108. | 42.70 | Coos Bay School District 9 / 27,032 |
| 111. | 43.20 | Roseburg School District 4 / 48,681 |
| 111. | 43.20 | Ashland School District 5 / 24,115 |
| 111. | 43.20 | Dufur School District 29 / 1,419 |
| 111. | 43.20 | Lake Oswego School District 7J / 39,869 |
| 115. | 43.40 | Perrydale School District 21 / 1,094 |
| 116. | 43.50 | Crook County School District / 21,556 |
| 116. | 43.50 | Glendale School District 77 / 2,858 |
| 118. | 43.60 | Scappoose School District 1J / 14,540 |
| 119. | 43.70 | Fern Ridge School District 28J / 11,475 |
| 120. | 43.80 | Colton School District 53 / 4,262 |
| 121. | 43.90 | Plush School District 18 / 145 |
| 122. | 44.00 | Klamath County School District / 42,903 |
| 123. | 44.20 | Seaside School District 10 / 11,882 |
| 123. | 44.20 | Myrtle Point School District 41 / 5,182 |
| 125. | 44.50 | Athena-Weston School District 29J / 2,630 |
| 126. | 44.80 | Wallowa School District 12 / 1,955 |
| 127. | 45.10 | Sweet Home School District 55 / 14,176 |
| 128. | 45.30 | Sherman School District 1 / 1,819 |
| 129. | 45.50 | South Umpqua School District 19 / 11,670 |
| 130. | 45.70 | Phoenix-Talent School District 4 / 23,942 |
| 130. | 45.70 | Baker School District 5J / 13,666 |
| 132. | 46.00 | North Bend School District 13 / 16,843 |
| 132. | 46.00 | Lakeview School District 7 / 5,686 |
| 132. | 46.00 | Pleasant Hill School District 1 / 6,221 |
| 135. | 46.10 | Sutherlin School District 130 / 9,364 |
| 136. | 46.40 | Elgin School District 23 / 2,353 |
| 136. | 46.40 | Monroe School District 1J / 3,106 |
| 138. | 46.50 | Ukiah School District 80 / 196 |
| 139. | 46.70 | Santiam Canyon School District 129J / 3,764 |
| 140. | 46.80 | Harney County School District 3 / 5,935 |
| 141. | 46.90 | Marcola School District 79J / 2,038 |
| 142. | 47.00 | Riddle School District 70 / 2,207 |
| 143. | 47.10 | Camas Valley School District 21J / 764 |
| 143. | 47.10 | North Douglas School District 22 / 2,623 |
| 145. | 47.20 | Ione School District 2 / 567 |
| 145. | 47.20 | Oakland School District 1 / 3,014 |
| 147. | 47.30 | Cove School District 15 / 1,491 |
| 148. | 47.40 | Jewell School District 8 / 1,065 |
| 149. | 47.60 | Knappa School District 4 / 2,676 |
| 150. | 47.80 | Harney County School District 4 / 602 |
| 150. | 47.80 | John Day School District 3 / 4,733 |
| 152. | 48.00 | Prospect School District 59 / 1,036 |
| 153. | 48.40 | North Lake School District 14 / 1,389 |
| 154. | 48.80 | Blachly School District 090 / 677 |
| 154. | 48.80 | Oakridge School District 76 / 4,418 |
| 156. | 48.90 | Sisters School District 6 / 7,665 |
| 157. | 49.00 | Lincoln County School District / 46,062 |
| 158. | 49.10 | Clatskanie School District 6J / 4,957 |
| 158. | 49.10 | Rogue River School District 35 / 10,228 |
| 160. | 49.40 | Nestucca Valley School District 101J / 4,289 |
| 161. | 49.50 | Mitchell School District 55 / 383 |
| 162. | 49.80 | Mapleton School District 32 / 1,343 |
| 163. | 50.10 | Butte Falls School District 91 / 1,186 |
| 164. | 50.30 | Three Rivers School District / 47,570 |
| 164. | 50.30 | South Wasco County School District 1 / 1,964 |
| 164. | 50.30 | Prairie City School District 4 / 1,251 |
| 167. | 50.60 | Reedsport School District 105 / 5,586 |
| 168. | 50.80 | Double O School District 28 / 6 |
| 168. | 50.80 | Dayville School District 16J / 423 |
| 168. | 50.80 | Imbler School District 11 / 1,427 |
| 171. | 51.00 | Juntura School District 12 / 84 |
| 172. | 51.10 | Black Butte School District 41 / 315 |
| 173. | 51.40 | Coquille School District 8 / 6,774 |
| 173. | 51.40 | Long Creek School District 17 / 436 |
| 175. | 51.60 | Enterprise School District 21 / 2,956 |
| 176. | 51.70 | Brookings-Harbor School District 17 / 14,155 |
| 177. | 51.80 | Glide School District 12 / 5,180 |
| 178. | 51.90 | Joseph School District 6 / 1,967 |
| 178. | 51.90 | Days Creek School District 15 / 1,180 |
| 180. | 52.30 | Adel School District 21 / 58 |
| 181. | 53.00 | McKenzie School District 68 / 1,990 |
| 182. | 53.30 | Yoncalla School District 32 / 2,489 |
| 183. | 53.40 | Port Orford-Langlois School District 2J / 3,490 |
| 183. | 53.40 | Powers School District 31 / 906 |
| 185. | 53.60 | Paisley School District 11 / 604 |
| 186. | 54.20 | Central Curry School District 1 / 5,147 |
| 187. | 54.30 | Bandon School District 54 / 6,201 |
| 188. | 54.60 | Neah-Kah-Nie School District 56 / 7,203 |
| 189. | 54.80 | Elkton School District 34 / 1,408 |
| 190. | 54.90 | McDermitt School District 51 / 66 |
| 191. | 55.30 | Huntington School District 16J / 599 |
| 191. | 55.30 | Condon School District 25J / 963 |
| 193. | 56.70 | Pine-Eagle School District 61 / 1,571 |
| 194. | 56.90 | Spray School District 1 / 436 |
| 195. | 57.50 | Siuslaw School District 97J / 14,354 |
| 196. | 61.60 | Drewsey School District 13 / 95 |
| 197. | 62.30 | Burnt River School District 30J / 340 |
| 197. | 62.30 | Troy School District 54 / 41 |
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.
*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.
