| Rank | 1 Room House Percentage ▼ | School District / Population |
| 1. | 14.0% | Monument School District 8 / 436 |
| 2. | 9.6% | Plush School District 18 / 68 |
| 3. | 8.9% | Troy School District 54 / 51 |
| 4. | 7.6% | Pinehurst School District 94 / 227 |
| 5. | 6.2% | Butte Falls School District 91 / 1,150 |
| 6. | 6.0% | Port Orford-Langlois School District 2J / 3,485 |
| 7. | 5.4% | North Lake School District 14 / 1,654 |
| 8. | 5.3% | Umatilla School District 6 / 5,975 |
| 9. | 5.2% | Portland School District 1J / 475,838 |
| 10. | 5.2% | Baker School District 5J / 13,694 |
| 11. | 5.1% | Prairie City School District 4 / 1,259 |
| 12. | 4.9% | Ukiah School District 80 / 226 |
| 13. | 4.7% | Pendleton School District 16 / 22,224 |
| 14. | 4.6% | Grants Pass School District 7 / 36,597 |
| 15. | 4.5% | Vale School District 84 / 4,903 |
| 16. | 4.4% | Alsea School District 7J / 1,084 |
| 17. | 4.3% | Paisley School District 11 / 531 |
| 18. | 4.1% | Sheridan School District 48J / 7,055 |
| 18. | 4.1% | South Wasco County School District 1 / 2,142 |
| 20. | 4.1% | La Grande School District 1 / 16,920 |
| 21. | 4.0% | Klamath Falls City Schools / 23,121 |
| 22. | 3.9% | Jordan Valley School District 3 / 469 |
| 23. | 3.9% | Mount Angel School District 91 / 3,894 |
| 24. | 3.9% | Annex School District 29 / 482 |
| 25. | 3.9% | South Harney School District 33 / 177 |
| 26. | 3.9% | John Day School District 3 / 4,803 |
| 27. | 3.8% | Mapleton School District 32 / 1,456 |
| 28. | 3.8% | Ontario School District 8 / 17,865 |
| 29. | 3.8% | Burnt River School District 30J / 395 |
| 30. | 3.7% | Central Curry School District 1 / 5,405 |
| 31. | 3.7% | Ashland School District 5 / 24,494 |
| 32. | 3.7% | Arlington School District 3 / 798 |
| 33. | 3.5% | Eugene School District 4J / 152,154 |
| 34. | 3.5% | Jefferson School District 14J / 6,782 |
| 35. | 3.5% | Corvallis School District 509J / 65,503 |
| 36. | 3.5% | Juntura School District 12 / 108 |
| 37. | 3.3% | Crook County School District / 20,856 |
| 38. | 3.3% | Pine-Eagle School District 61 / 1,473 |
| 39. | 3.2% | Seaside School District 10 / 12,214 |
| 40. | 3.2% | Woodburn School District 103 / 27,277 |
| 41. | 3.2% | Elkton School District 34 / 1,424 |
| 42. | 3.0% | North Santiam School District 29J / 15,435 |
| 43. | 3.0% | Long Creek School District 17 / 417 |
| 44. | 3.0% | Willamina School District 30J / 5,540 |
| 45. | 3.0% | Spray School District 1 / 314 |
| 46. | 2.9% | North Douglas School District 22 / 2,600 |
| 46. | 2.9% | Morrow School District 1 / 10,586 |
| 48. | 2.9% | Blachly School District 090 / 564 |
| 49. | 2.8% | Pilot Rock School District 2 / 2,180 |
| 50. | 2.8% | Brookings-Harbor School District 17 / 13,720 |
| 51. | 2.8% | Arock School District 81 / 120 |
| 52. | 2.8% | Lincoln County School District / 46,338 |
| 53. | 2.6% | Harney County School District 4 / 908 |
| 54. | 2.5% | Riverdale School District 51J / 2,683 |
| 55. | 2.5% | Joseph School District 6 / 2,072 |
| 55. | 2.5% | Phoenix-Talent School District 4 / 24,791 |
| 57. | 2.5% | Jewell School District 8 / 931 |
| 58. | 2.4% | Clatskanie School District 6J / 5,410 |
| 59. | 2.4% | Hermiston School District 8 / 27,183 |
| 60. | 2.4% | Roseburg School District 4 / 47,611 |
| 61. | 2.3% | Astoria School District 1 / 13,820 |
| 61. | 2.3% | Huntington School District 16J / 435 |
| 63. | 2.3% | South Umpqua School District 19 / 12,196 |
| 64. | 2.3% | North Wasco School District 21 / 20,723 |
| 65. | 2.2% | Siuslaw School District 97J / 14,479 |
| 66. | 2.2% | Wallowa School District 12 / 1,879 |
| 67. | 2.2% | Dayville School District 16J / 410 |
| 67. | 2.2% | Coos Bay School District 9 / 26,254 |
| 69. | 2.1% | Stanfield School District 61 / 2,700 |
| 70. | 2.1% | Dufur School District 29 / 1,386 |
| 71. | 2.1% | Fossil School District 21J / 834 |
| 71. | 2.1% | Nyssa School District 26 / 5,135 |
| 73. | 2.1% | McMinnville School District 40 / 40,061 |
| 74. | 2.0% | McKenzie School District 68 / 2,410 |
| 75. | 2.0% | Medford School District 549 / 86,642 |
| 76. | 2.0% | Camas Valley School District 21J / 802 |
| 77. | 2.0% | South Lane School District 45J / 18,618 |
| 77. | 2.0% | Pleasant Hill School District 1 / 6,554 |
| 79. | 2.0% | Colton School District 53 / 4,403 |
| 80. | 1.9% | Name N/A / 1,772 |
| 81. | 1.9% | Jefferson County School District 509J / 16,035 |
| 82. | 1.9% | Silver Falls School District 4J / 19,876 |
| 83. | 1.9% | Central School District 13J / 21,786 |
| 84. | 1.8% | Sweet Home School District 55 / 14,797 |
| 85. | 1.8% | David Douglas School District 40 / 66,173 |
| 86. | 1.8% | Sisters School District 6 / 8,149 |
| 87. | 1.8% | Harney County Union High School District 1J / 1,664 |
| 88. | 1.8% | Forest Grove School District 15 / 34,942 |
| 89. | 1.8% | Parkrose School District 3 / 26,781 |
| 90. | 1.7% | Gresham-Barlow School District 1J / 76,766 |
| 91. | 1.6% | Bend-La Pine Administrative School District 1 / 110,491 |
| 92. | 1.6% | Newberg School District 29J / 34,787 |
| 92. | 1.6% | Hood River County School District 1 / 22,620 |
| 94. | 1.6% | Vernonia School District 47J / 3,709 |
| 95. | 1.6% | Milton-Freewater School District 7 / 11,973 |
| 96. | 1.6% | Scappoose School District 1J / 14,580 |
| 97. | 1.6% | Sherman School District 1 / 1,790 |
| 98. | 1.6% | St. Helens School District 502 / 20,169 |
| 99. | 1.5% | Eagle Point School District 9 / 27,558 |
| 100. | 1.5% | Glide School District 12 / 5,810 |
| 101. | 1.5% | Estacada School District 108 / 13,620 |
| 102. | 1.5% | Reynolds School District 7 / 75,406 |
| 103. | 1.5% | Three Rivers School District / 47,349 |
| 104. | 1.4% | Redmond School District 2J / 46,775 |
| 104. | 1.4% | Reedsport School District 105 / 5,507 |
| 106. | 1.4% | Coquille School District 8 / 7,196 |
| 107. | 1.4% | Salem-Keizer School District 24J / 245,673 |
| 107. | 1.4% | Riddle School District 70 / 2,567 |
| 109. | 1.4% | Oregon Trail School District 46 / 28,409 |
| 110. | 1.4% | Elgin School District 23 / 2,558 |
| 110. | 1.4% | North Clackamas School District 12 / 116,845 |
| 112. | 1.3% | Lowell School District 71 / 2,643 |
| 113. | 1.3% | Sherwood School District 88J / 30,038 |
| 114. | 1.3% | North Bend School District 13 / 16,122 |
| 115. | 1.3% | Molalla River School District 35 / 20,532 |
| 116. | 1.3% | Rainier School District 13 / 7,445 |
| 117. | 1.3% | Bethel School District 52 / 38,809 |
| 118. | 1.3% | Tigard-Tualatin School District 23J / 79,788 |
| 119. | 1.2% | Klamath County School District / 42,864 |
| 120. | 1.2% | Tillamook School District 9 / 13,584 |
| 121. | 1.2% | Corbett School District 39 / 4,266 |
| 122. | 1.2% | Centennial School District 28J / 41,180 |
| 123. | 1.2% | Warrenton-Hammond School District 30 / 6,193 |
| 124. | 1.2% | Gladstone School District 115 / 11,556 |
| 125. | 1.1% | Santiam Canyon School District 129J / 4,043 |
| 125. | 1.1% | Condon School District 25J / 1,120 |
| 127. | 1.1% | Fern Ridge School District 28J / 11,448 |
| 128. | 1.1% | Springfield School District 19 / 74,794 |
| 129. | 1.1% | Greater Albany School District 8J / 62,421 |
| 130. | 1.0% | Myrtle Point School District 41 / 4,570 |
| 131. | 1.0% | Dallas School District 2 / 20,422 |
| 131. | 1.0% | Canby School District 86 / 30,466 |
| 133. | 1.0% | Bandon School District 54 / 7,227 |
| 133. | 1.0% | Oakland School District 1 / 2,675 |
| 135. | 0.9% | Oregon City School District 62 / 54,859 |
| 136. | 0.9% | West Linn School District 3J / 47,012 |
| 137. | 0.9% | Marcola School District 79J / 2,029 |
| 138. | 0.9% | Athena-Weston School District 29J / 2,799 |
| 138. | 0.9% | Cascade School District 5 / 13,792 |
| 140. | 0.9% | Powers School District 31 / 1,040 |
| 141. | 0.8% | Mitchell School District 55 / 389 |
| 142. | 0.8% | Hillsboro School District 1J / 129,769 |
| 143. | 0.7% | Culver School District 4 / 3,852 |
| 143. | 0.7% | Cove School District 15 / 1,838 |
| 145. | 0.7% | Enterprise School District 21 / 2,891 |
| 146. | 0.7% | Neah-Kah-Nie School District 56 / 7,443 |
| 146. | 0.7% | Beaverton School District 48J / 264,366 |
| 146. | 0.7% | Knappa School District 4 / 3,322 |
| 149. | 0.7% | Central Point School District 6 / 30,647 |
| 150. | 0.7% | Lebanon Community School District 9 / 28,241 |
| 151. | 0.6% | Lake Oswego School District 7J / 40,866 |
| 152. | 0.6% | Rogue River School District 35 / 9,105 |
| 153. | 0.5% | Monroe School District 1J / 3,460 |
| 154. | 0.5% | Philomath School District 17J / 8,464 |
| 154. | 0.5% | Harney County School District 3 / 5,589 |
| 156. | 0.4% | Yamhill-Carlton School District 1 / 6,678 |
| 157. | 0.4% | Nestucca Valley School District 101J / 4,307 |
| 158. | 0.3% | Junction City School District 69 / 12,857 |
| 159. | 0.3% | Central Linn School District 552 / 5,328 |
| 160. | 0.2% | Glendale School District 77 / 2,665 |
| 161. | 0.2% | Banks School District 13 / 6,489 |
| 162. | 0.1% | Lakeview School District 7 / 5,511 |
Please note that we only rank locations with '1 Room House Percentage' data. The rank above might not be a complete list. Locations without '1 Room House Percentage' data are not listed.
