| Rank | Average Household Size ▼ | School District / Population |
| 1. | 3.43 | Gervais School District 1 / 7,697 |
| 2. | 3.37 | Diamond School District 7 / 101 |
| 3. | 3.32 | Pine Creek School District 5 / 83 |
| 4. | 3.20 | Dayton School District 8 / 6,121 |
| 5. | 3.17 | Nyssa School District 26 / 5,135 |
| 6. | 3.06 | St. Paul School District 45 / 1,404 |
| 7. | 3.06 | Woodburn School District 103 / 27,277 |
| 8. | 3.02 | Morrow School District 1 / 10,586 |
| 9. | 2.99 | Annex School District 29 / 482 |
| 10. | 2.97 | Amity School District 4J / 4,551 |
| 11. | 2.96 | Camas Valley School District 21J / 802 |
| 12. | 2.96 | Harrisburg School District 7J / 5,258 |
| 13. | 2.96 | Banks School District 13 / 6,489 |
| 14. | 2.94 | Jefferson School District 14J / 6,782 |
| 15. | 2.94 | Colton School District 53 / 4,403 |
| 16. | 2.92 | North Powder School District 8J / 903 |
| 17. | 2.90 | Jefferson County School District 509J / 16,035 |
| 18. | 2.90 | Estacada School District 108 / 13,620 |
| 19. | 2.90 | Echo School District 5 / 918 |
| 20. | 2.90 | Umatilla School District 6 / 5,975 |
| 21. | 2.89 | Forest Grove School District 15 / 34,942 |
| 22. | 2.89 | Hillsboro School District 1J / 129,769 |
| 23. | 2.88 | Centennial School District 28J / 41,180 |
| 24. | 2.88 | Riverdale School District 51J / 2,683 |
| 25. | 2.87 | Silver Falls School District 4J / 19,876 |
| 26. | 2.85 | North Marion School District 15 / 10,076 |
| 27. | 2.83 | Monroe School District 1J / 3,460 |
| 28. | 2.81 | David Douglas School District 40 / 66,173 |
| 29. | 2.80 | Scio School District 95 / 4,618 |
| 30. | 2.79 | Molalla River School District 35 / 20,532 |
| 31. | 2.79 | Stanfield School District 61 / 2,700 |
| 32. | 2.79 | Central Linn School District 552 / 5,328 |
| 33. | 2.79 | Hermiston School District 8 / 27,183 |
| 34. | 2.78 | Newberg School District 29J / 34,787 |
| 35. | 2.77 | Perrydale School District 21 / 895 |
| 36. | 2.77 | Reynolds School District 7 / 75,406 |
| 37. | 2.74 | Suntex School District 10 / 107 |
| 38. | 2.74 | Pinehurst School District 94 / 227 |
| 39. | 2.74 | McMinnville School District 40 / 40,061 |
| 40. | 2.73 | Sherwood School District 88J / 30,038 |
| 41. | 2.73 | Yamhill-Carlton School District 1 / 6,678 |
| 42. | 2.73 | North Douglas School District 22 / 2,600 |
| 43. | 2.73 | Ione School District 2 / 639 |
| 44. | 2.72 | Cascade School District 5 / 13,792 |
| 45. | 2.72 | Vernonia School District 47J / 3,709 |
| 46. | 2.71 | Eagle Point School District 9 / 27,558 |
| 47. | 2.71 | Canby School District 86 / 30,466 |
| 48. | 2.71 | Milton-Freewater School District 7 / 11,973 |
| 49. | 2.69 | Gresham-Barlow School District 1J / 76,766 |
| 50. | 2.68 | Corbett School District 39 / 4,266 |
| 51. | 2.68 | Helix School District 1 / 467 |
| 52. | 2.68 | Butte Falls School District 91 / 1,150 |
| 53. | 2.68 | Gaston School District 511J / 2,995 |
| 54. | 2.67 | Sutherlin School District 130 / 9,695 |
| 55. | 2.66 | Parkrose School District 3 / 26,781 |
| 56. | 2.66 | Salem-Keizer School District 24J / 245,673 |
| 57. | 2.66 | Mount Angel School District 91 / 3,894 |
| 58. | 2.66 | Vale School District 84 / 4,903 |
| 59. | 2.66 | Pilot Rock School District 2 / 2,180 |
| 60. | 2.65 | Union School District 5 / 2,266 |
| 61. | 2.65 | Clatskanie School District 6J / 5,410 |
| 62. | 2.65 | Ashwood School District 8 / 135 |
| 63. | 2.65 | St. Helens School District 502 / 20,169 |
| 64. | 2.63 | Falls City School District 57 / 1,216 |
| 65. | 2.63 | Central School District 13J / 21,786 |
| 66. | 2.63 | Bethel School District 52 / 38,809 |
| 67. | 2.62 | Cove School District 15 / 1,838 |
| 68. | 2.62 | Hood River County School District 1 / 22,620 |
| 69. | 2.61 | Oregon City School District 62 / 54,859 |
| 70. | 2.61 | West Linn School District 3J / 47,012 |
| 71. | 2.61 | Culver School District 4 / 3,852 |
| 72. | 2.61 | Dallas School District 2 / 20,422 |
| 73. | 2.60 | North Santiam School District 29J / 15,435 |
| 74. | 2.60 | Greater Albany School District 8J / 62,421 |
| 75. | 2.60 | Creswell School District 40 / 8,962 |
| 76. | 2.60 | Sheridan School District 48J / 7,055 |
| 77. | 2.59 | Redmond School District 2J / 46,775 |
| 78. | 2.59 | Beaverton School District 48J / 264,366 |
| 79. | 2.59 | Sweet Home School District 55 / 14,797 |
| 80. | 2.59 | Coquille School District 8 / 7,196 |
| 81. | 2.58 | Winston-Dillard School District 116 / 9,676 |
| 82. | 2.56 | Lowell School District 71 / 2,643 |
| 83. | 2.56 | Jordan Valley School District 3 / 469 |
| 84. | 2.56 | North Clackamas School District 12 / 116,845 |
| 85. | 2.56 | Powers School District 31 / 1,040 |
| 86. | 2.55 | Pleasant Hill School District 1 / 6,554 |
| 87. | 2.55 | Willamina School District 30J / 5,540 |
| 88. | 2.55 | Medford School District 549 / 86,642 |
| 89. | 2.55 | Fern Ridge School District 28J / 11,448 |
| 90. | 2.55 | Rainier School District 13 / 7,445 |
| 91. | 2.55 | Philomath School District 17J / 8,464 |
| 92. | 2.54 | Junction City School District 69 / 12,857 |
| 93. | 2.54 | Gladstone School District 115 / 11,556 |
| 94. | 2.54 | Athena-Weston School District 29J / 2,799 |
| 95. | 2.54 | South Umpqua School District 19 / 12,196 |
| 96. | 2.54 | Central Point School District 6 / 30,647 |
| 97. | 2.53 | Lebanon Community School District 9 / 28,241 |
| 98. | 2.52 | Pendleton School District 16 / 22,224 |
| 99. | 2.52 | Springfield School District 19 / 74,794 |
| 100. | 2.52 | Oregon Trail School District 46 / 28,409 |
| 101. | 2.52 | Harney County School District 4 / 908 |
| 102. | 2.52 | Ontario School District 8 / 17,865 |
| 103. | 2.52 | Elgin School District 23 / 2,558 |
| 104. | 2.50 | Sisters School District 6 / 8,149 |
| 105. | 2.50 | Marcola School District 79J / 2,029 |
| 106. | 2.49 | Tillamook School District 9 / 13,584 |
| 107. | 2.49 | Arlington School District 3 / 798 |
| 108. | 2.49 | Warrenton-Hammond School District 30 / 6,193 |
| 109. | 2.48 | Wallowa School District 12 / 1,879 |
| 110. | 2.48 | Scappoose School District 1J / 14,580 |
| 111. | 2.47 | Klamath County School District / 42,864 |
| 112. | 2.46 | Imbler School District 11 / 1,364 |
| 113. | 2.46 | Yoncalla School District 32 / 2,656 |
| 114. | 2.46 | Santiam Canyon School District 129J / 4,043 |
| 115. | 2.45 | Harney County Union High School District 1J / 1,664 |
| 116. | 2.45 | Bend-La Pine Administrative School District 1 / 110,491 |
| 117. | 2.44 | North Wasco School District 21 / 20,723 |
| 118. | 2.44 | Arock School District 81 / 120 |
| 119. | 2.44 | Central Curry School District 1 / 5,405 |
| 120. | 2.43 | Name N/A / 1,772 |
| 121. | 2.43 | North Bend School District 13 / 16,122 |
| 122. | 2.43 | Adrian School District 61 / 1,195 |
| 123. | 2.42 | Glide School District 12 / 5,810 |
| 124. | 2.42 | Coos Bay School District 9 / 26,254 |
| 125. | 2.42 | Dufur School District 29 / 1,386 |
| 126. | 2.41 | South Lane School District 45J / 18,618 |
| 127. | 2.41 | Knappa School District 4 / 3,322 |
| 128. | 2.41 | Black Butte School District 41 / 432 |
| 129. | 2.40 | Grants Pass School District 7 / 36,597 |
| 130. | 2.40 | Long Creek School District 17 / 417 |
| 131. | 2.39 | Prospect School District 59 / 1,044 |
| 132. | 2.39 | Tigard-Tualatin School District 23J / 79,788 |
| 133. | 2.39 | La Grande School District 1 / 16,920 |
| 134. | 2.39 | Riddle School District 70 / 2,567 |
| 135. | 2.38 | Three Rivers School District / 47,349 |
| 136. | 2.38 | Enterprise School District 21 / 2,891 |
| 137. | 2.37 | Oakland School District 1 / 2,675 |
| 138. | 2.37 | Prairie City School District 4 / 1,259 |
| 139. | 2.37 | Blachly School District 090 / 564 |
| 140. | 2.37 | Monument School District 8 / 436 |
| 141. | 2.37 | Crow-Applegate-Lorane Sd 66 / 2,137 |
| 142. | 2.35 | Corvallis School District 509J / 65,503 |
| 143. | 2.35 | Alsea School District 7J / 1,084 |
| 144. | 2.35 | Lake Oswego School District 7J / 40,866 |
| 145. | 2.34 | Roseburg School District 4 / 47,611 |
| 146. | 2.33 | Nestucca Valley School District 101J / 4,307 |
| 147. | 2.32 | Troy School District 54 / 51 |
| 148. | 2.32 | Myrtle Point School District 41 / 4,570 |
| 149. | 2.30 | Crook County School District / 20,856 |
| 150. | 2.30 | Neah-Kah-Nie School District 56 / 7,443 |
| 151. | 2.28 | Fossil School District 21J / 834 |
| 152. | 2.28 | Astoria School District 1 / 13,820 |
| 153. | 2.27 | Elkton School District 34 / 1,424 |
| 154. | 2.26 | Eugene School District 4J / 152,154 |
| 155. | 2.26 | Klamath Falls City Schools / 23,121 |
| 156. | 2.25 | Harney County School District 3 / 5,589 |
| 157. | 2.25 | Days Creek School District 15 / 1,232 |
| 158. | 2.25 | Sherman School District 1 / 1,790 |
| 159. | 2.23 | Seaside School District 10 / 12,214 |
| 160. | 2.23 | John Day School District 3 / 4,803 |
| 161. | 2.22 | Phoenix-Talent School District 4 / 24,791 |
| 162. | 2.22 | Portland School District 1J / 475,838 |
| 163. | 2.20 | Juntura School District 12 / 108 |
| 164. | 2.20 | Lincoln County School District / 46,338 |
| 165. | 2.19 | Dayville School District 16J / 410 |
| 166. | 2.18 | Baker School District 5J / 13,694 |
| 167. | 2.17 | Jewell School District 8 / 931 |
| 168. | 2.17 | Rogue River School District 35 / 9,105 |
| 169. | 2.16 | Reedsport School District 105 / 5,507 |
| 170. | 2.15 | Burnt River School District 30J / 395 |
| 171. | 2.15 | Oakridge School District 76 / 4,396 |
| 172. | 2.14 | Glendale School District 77 / 2,665 |
| 173. | 2.13 | Harper School District 66 / 324 |
| 174. | 2.13 | McKenzie School District 68 / 2,410 |
| 175. | 2.13 | South Wasco County School District 1 / 2,142 |
| 176. | 2.12 | Mapleton School District 32 / 1,456 |
| 177. | 2.12 | Ashland School District 5 / 24,494 |
| 178. | 2.12 | Frenchglen School District 16 / 122 |
| 179. | 2.11 | McDermitt School District 51 / 78 |
| 180. | 2.10 | Mitchell School District 55 / 389 |
| 181. | 2.09 | Adel School District 21 / 90 |
| 182. | 2.09 | Lakeview School District 7 / 5,511 |
| 183. | 2.08 | South Harney School District 33 / 177 |
| 184. | 2.08 | Ukiah School District 80 / 226 |
| 185. | 2.06 | Bandon School District 54 / 7,227 |
| 186. | 2.06 | Brookings-Harbor School District 17 / 13,720 |
| 187. | 2.05 | Port Orford-Langlois School District 2J / 3,485 |
| 188. | 2.01 | Drewsey School District 13 / 141 |
| 189. | 2.01 | Siuslaw School District 97J / 14,479 |
| 190. | 2.00 | North Lake School District 14 / 1,654 |
| 191. | 1.99 | Condon School District 25J / 1,120 |
| 192. | 1.98 | Huntington School District 16J / 435 |
| 193. | 1.96 | Spray School District 1 / 314 |
| 194. | 1.92 | Double O School District 28 / 25 |
| 195. | 1.92 | Joseph School District 6 / 2,072 |
| 196. | 1.91 | Pine-Eagle School District 61 / 1,473 |
| 197. | 1.84 | Paisley School District 11 / 531 |
| 198. | 1.62 | Plush School District 18 / 68 |
Please note that we only rank locations with 'Average Household Size' data. The rank above might not be a complete list. Locations without 'Average Household Size' data are not listed.
