| Rank | 1 Room House Percentage ▼ | School District / Population |
| 1. | 4.6% | Walnut Community School District / 1,219 |
| 2. | 4.4% | Lake Mills Community School District / 3,576 |
| 3. | 3.9% | Woodbine Community School District / 2,660 |
| 4. | 3.3% | Marion Independent School District / 12,255 |
| 5. | 3.1% | Columbus Community School District / 4,667 |
| 6. | 3.0% | Wapello Community School District / 3,582 |
| 7. | 2.9% | North Winneshiek Community School District / 2,037 |
| 8. | 2.9% | Emmetsburg Community School District / 4,971 |
| 9. | 2.7% | Alta Community School District / 2,893 |
| 9. | 2.7% | Sheldon Community School District / 7,292 |
| 11. | 2.7% | Montezuma Community School District / 3,480 |
| 12. | 2.6% | Harris-Lake Park Community School District / 1,717 |
| 13. | 2.5% | Central Lee Community School District / 5,129 |
| 14. | 2.5% | Chariton Community School District / 8,330 |
| 15. | 2.5% | Dubuque Community School District / 76,893 |
| 16. | 2.4% | Mount Pleasant Community School District / 12,907 |
| 17. | 2.3% | Ottumwa Community School District / 28,949 |
| 18. | 2.3% | Des Moines Independent Community School District / 205,612 |
| 19. | 2.2% | Lenox Community School District / 2,032 |
| 20. | 2.2% | Lawton-Bronson Community School District / 3,078 |
| 21. | 2.2% | Cedar Rapids Community School District / 120,797 |
| 22. | 2.1% | Grundy Center Community School District / 3,725 |
| 23. | 2.0% | Denison Community School District / 10,354 |
| 23. | 2.0% | North Fayette Community School District / 6,122 |
| 25. | 2.0% | Council Bluffs Community School District / 59,876 |
| 26. | 2.0% | Central Clinton Community School District / 9,489 |
| 26. | 2.0% | Cardinal Community School District / 4,014 |
| 28. | 2.0% | Dallas Center-Grimes Community School District / 10,190 |
| 29. | 1.9% | Washington Community School District / 10,221 |
| 30. | 1.9% | West Delaware County Community School District / 9,003 |
| 31. | 1.9% | West Liberty Community School District / 6,333 |
| 31. | 1.9% | Wilton Community School District / 4,251 |
| 33. | 1.8% | Valley Community School District / 3,065 |
| 34. | 1.8% | Delwood Community School District / 1,123 |
| 35. | 1.8% | Centerville Community School District / 8,881 |
| 35. | 1.8% | West Monona Community School District / 4,003 |
| 37. | 1.8% | Muscatine Community School District / 29,190 |
| 38. | 1.7% | Clinton Community School District / 25,889 |
| 38. | 1.7% | Nevada Community School District / 8,919 |
| 38. | 1.7% | Ruthven-Ayrshire Community School District / 1,409 |
| 41. | 1.7% | Le Mars Community School District / 13,419 |
| 41. | 1.7% | Red Oak Community School District / 6,975 |
| 43. | 1.7% | Calamus-Wheatland Community School District / 2,301 |
| 44. | 1.7% | Independence Community School District / 9,001 |
| 45. | 1.7% | Hamburg Community School District / 1,478 |
| 46. | 1.6% | Ballard Community School District / 7,081 |
| 47. | 1.6% | Union Community School District / 6,347 |
| 47. | 1.6% | Marshalltown Community School District / 30,396 |
| 49. | 1.6% | Fairfield Community School District / 15,659 |
| 49. | 1.6% | Underwood Community School District / 4,036 |
| 51. | 1.6% | Clayton Ridge Community School District / 5,044 |
| 51. | 1.6% | Boone Community School District / 14,429 |
| 53. | 1.6% | Iowa City Community School District / 110,675 |
| 54. | 1.6% | West Sioux Community School District / 3,988 |
| 55. | 1.6% | Allamakee Community School District / 8,539 |
| 56. | 1.5% | Anamosa Community School District / 9,287 |
| 56. | 1.5% | Hubbard-Radcliffe Community School District / 2,896 |
| 58. | 1.5% | Whiting Community School District / 1,328 |
| 58. | 1.5% | Ames Community School District / 58,297 |
| 60. | 1.5% | Oskaloosa Community School District / 15,978 |
| 60. | 1.5% | Hampton-Dumont Community School District / 6,739 |
| 62. | 1.4% | Creston Community School District / 9,674 |
| 62. | 1.4% | Clear Lake Community School District / 8,752 |
| 62. | 1.4% | Titonka Consolidated School District / 897 |
| 65. | 1.4% | Spencer Community School District / 12,952 |
| 66. | 1.4% | Roland-Story Community School District / 5,841 |
| 67. | 1.4% | Cherokee Community School District / 6,432 |
| 67. | 1.4% | Mason City Community School District / 28,622 |
| 69. | 1.4% | Glenwood Community School District / 11,075 |
| 70. | 1.4% | West Des Moines Community School District / 65,738 |
| 71. | 1.4% | Cedar Falls Community School District / 41,989 |
| 72. | 1.4% | Panorama Community School District / 4,575 |
| 73. | 1.3% | Hartley-Melvin-Sanborn Community School District / 4,250 |
| 74. | 1.3% | Morning Sun Community School District / 1,362 |
| 74. | 1.3% | Treynor Community School District / 3,013 |
| 76. | 1.3% | Vinton-Shellsburg Community School District / 10,383 |
| 76. | 1.3% | A-H-S-T Community School District / 3,146 |
| 78. | 1.3% | Galva-Holstein Community School District / 2,573 |
| 79. | 1.3% | MFL MarMac Community School District / 5,471 |
| 79. | 1.3% | River Valley Community School District / 2,583 |
| 81. | 1.3% | Stratford Community School District / 1,209 |
| 82. | 1.3% | Sioux City Community School District / 83,385 |
| 83. | 1.3% | Danville Community School District / 2,743 |
| 84. | 1.2% | Atlantic Community School District / 8,459 |
| 84. | 1.2% | West Central Valley Community School District / 5,965 |
| 86. | 1.2% | Allison-Bristow Community School District / 4,070 |
| 87. | 1.2% | Carroll Community School District / 14,060 |
| 87. | 1.2% | Central Lyon Community School District / 4,018 |
| 89. | 1.2% | Jefferson-Scranton Community School District / 6,062 |
| 90. | 1.2% | Johnston Community School District / 34,241 |
| 90. | 1.2% | PCM Community School District / 5,314 |
| 90. | 1.2% | Spirit Lake Community School District / 8,022 |
| 93. | 1.2% | Forest City Community School District / 7,723 |
| 93. | 1.2% | Fort Madison Community School District / 17,216 |
| 95. | 1.2% | Knoxville Community School District / 11,702 |
| 96. | 1.1% | Waterloo Community School District / 77,406 |
| 97. | 1.1% | Harmony Community School District / 2,823 |
| 97. | 1.1% | Iowa Falls Community School District / 7,064 |
| 97. | 1.1% | Pella Community School District / 15,556 |
| 97. | 1.1% | Shenandoah Community School District / 6,133 |
| 101. | 1.1% | Burlington Community School District / 30,070 |
| 102. | 1.1% | Audubon Community School District / 3,382 |
| 102. | 1.1% | New London Community School District / 2,987 |
| 104. | 1.1% | Van Meter Community School District / 3,282 |
| 104. | 1.1% | Marcus-Meriden-Cleghorn Community School District / 2,921 |
| 106. | 1.1% | Central Decatur Community School District / 4,215 |
| 107. | 1.0% | Boyer Valley Community School District / 2,740 |
| 108. | 1.0% | Eldora-New Providence Community School District / 3,765 |
| 109. | 1.0% | Charles City Community School District / 11,219 |
| 109. | 1.0% | Clarke Community School District / 8,023 |
| 109. | 1.0% | Waverly-Shell Rock Community School District / 13,825 |
| 109. | 1.0% | Missouri Valley Community School District / 5,140 |
| 109. | 1.0% | Murray Community School District / 1,200 |
| 114. | 1.0% | Ventura Community School District / 1,683 |
| 114. | 1.0% | Davenport Community School District / 108,996 |
| 116. | 1.0% | Starmont Community School District / 3,814 |
| 116. | 1.0% | Lewis Central Community School District / 15,278 |
| 118. | 1.0% | Wayne Community School District / 3,819 |
| 119. | 1.0% | Storm Lake Community School District / 12,212 |
| 119. | 1.0% | Keokuk Community School District / 12,931 |
| 119. | 1.0% | Grinnell-Newburg Community School District / 12,345 |
| 122. | 0.9% | BCLUW Community School District / 3,214 |
| 123. | 0.9% | Guthrie Center Community School District / 2,625 |
| 124. | 0.9% | Aplington-Parkersburg Community School District / 4,304 |
| 125. | 0.9% | Maple Valley Community School District / 4,404 |
| 125. | 0.9% | Harlan Community School District / 8,844 |
| 127. | 0.9% | Armstrong-Ringsted Community School District / 2,149 |
| 128. | 0.9% | West Hancock Community School District / 4,119 |
| 129. | 0.9% | Belmond-Klemme Community School District / 4,389 |
| 129. | 0.9% | Brooklyn-Guernsey-Malcom Community School District / 3,173 |
| 129. | 0.9% | Collins-Maxwell Community School District / 2,689 |
| 132. | 0.9% | West Central Community School District / 1,871 |
| 133. | 0.8% | Indianola Community School District / 20,037 |
| 133. | 0.8% | Linn-Mar Community School District / 37,068 |
| 135. | 0.8% | Riverside Community School District / 4,115 |
| 135. | 0.8% | Albia Community School District / 7,435 |
| 137. | 0.8% | Twin Cedars Community School District / 2,548 |
| 138. | 0.8% | Sumner Community School District / 3,448 |
| 139. | 0.8% | C and M Community School District / 2,951 |
| 140. | 0.8% | Southeast Polk Community School District / 33,956 |
| 140. | 0.8% | North Mahaska Community School District / 2,811 |
| 142. | 0.8% | Graettinger Community School District / 2,201 |
| 143. | 0.7% | Davis County Community School District / 8,677 |
| 143. | 0.7% | Springville Community School District / 2,568 |
| 145. | 0.7% | Gilmore City-Bradgate Community School District / 1,012 |
| 145. | 0.7% | Algona Community School District / 9,417 |
| 147. | 0.7% | Okoboji Community School District / 6,700 |
| 147. | 0.7% | Center Point-Urbana Community School District / 5,868 |
| 149. | 0.7% | Riceville Community School District / 2,655 |
| 150. | 0.7% | Essex Community School District / 1,445 |
| 150. | 0.7% | Name N/A / 1,521 |
| 150. | 0.7% | Moravia Community School District / 2,300 |
| 150. | 0.7% | Boyden-Hull Community School District / 4,358 |
| 154. | 0.7% | Perry Community School District / 10,091 |
| 155. | 0.7% | Clarinda Community School District / 7,277 |
| 156. | 0.6% | Rockwell City-Lytton Community School District / 3,246 |
| 157. | 0.6% | Oelwein Community School District / 8,702 |
| 157. | 0.6% | Maquoketa Community School District / 8,888 |
| 157. | 0.6% | Durant Community School District / 3,345 |
| 160. | 0.6% | West Branch Community School District / 4,319 |
| 161. | 0.6% | GMG Community School District / 1,782 |
| 161. | 0.6% | North Central Community School District / 5,594 |
| 163. | 0.6% | Prairie Valley Community School District / 4,144 |
| 164. | 0.6% | Alburnett Community School District / 3,524 |
| 164. | 0.6% | St. Ansgar Community School District / 4,065 |
| 166. | 0.6% | South Winneshiek Community School District / 4,523 |
| 167. | 0.6% | Howard-Winneshiek Community School District / 9,042 |
| 168. | 0.5% | Tripoli Community School District / 2,771 |
| 169. | 0.5% | Newton Community School District / 21,242 |
| 170. | 0.5% | Decorah Community School District / 11,789 |
| 170. | 0.5% | Pleasant Valley Community School District / 20,099 |
| 172. | 0.5% | Mormon Trail Community School District / 1,675 |
| 172. | 0.5% | Urbandale Community School District / 20,873 |
| 174. | 0.5% | Sioux Central Community School District / 2,581 |
| 174. | 0.5% | Glidden-Ralston Community School District / 2,080 |
| 174. | 0.5% | Midland Community School District / 3,620 |
| 177. | 0.4% | Webster City Community School District / 9,959 |
| 177. | 0.4% | Waukee Community School District / 41,420 |
| 179. | 0.4% | Central Community School District / 3,329 |
| 179. | 0.4% | East Marshall Community School District / 4,093 |
| 179. | 0.4% | Mediapolis Community School District / 4,736 |
| 179. | 0.4% | Adel-De Soto-Minburn Community School District / 8,067 |
| 183. | 0.4% | Battle Creek-Ida Grove Community School District / 3,937 |
| 183. | 0.4% | Western Dubuque Community School District / 22,060 |
| 185. | 0.4% | Westwood Community School District / 3,153 |
| 185. | 0.4% | Charter Oak-Ute Community School District / 2,099 |
| 185. | 0.4% | IKM Community School District / 4,641 |
| 188. | 0.4% | Pocahontas Area Community School District / 5,262 |
| 189. | 0.4% | Nodaway Valley Community School District / 4,119 |
| 189. | 0.4% | Fort Dodge Community School District / 28,658 |
| 189. | 0.4% | Odebolt-Arthur Community School District / 2,227 |
| 189. | 0.4% | College Community School District / 24,875 |
| 189. | 0.4% | Dows Community School District / 801 |
| 194. | 0.4% | North Linn Community School District / 3,653 |
| 195. | 0.4% | Southeast Webster-Grand Community School District / 3,156 |
| 195. | 0.4% | Osage Community School District / 5,969 |
| 197. | 0.4% | Ankeny Community School District / 53,970 |
| 197. | 0.4% | Winterset Community School District / 8,821 |
| 199. | 0.4% | Humboldt Community School District / 7,467 |
| 200. | 0.3% | Paton-Churdan Community School District / 1,112 |
| 200. | 0.3% | Clarion-Goldfield Community School District / 4,653 |
| 200. | 0.3% | Sidney Community School District / 1,811 |
| 203. | 0.3% | Sheffield Chapin Meservey Thornton Community School District / 4,716 |
| 203. | 0.3% | Sioux Center Community School District / 8,923 |
| 205. | 0.3% | Eddyville-Blakesburg Community School District / 5,108 |
| 205. | 0.3% | Solon Community School District / 6,638 |
| 205. | 0.3% | Logan-Magnolia Community School District / 2,902 |
| 208. | 0.3% | Coon Rapids-Bayard Community School District / 2,822 |
| 208. | 0.3% | Williamsburg Community School District / 6,496 |
| 208. | 0.3% | Orient-Macksburg Community School District / 1,209 |
| 211. | 0.3% | Andrew Community School District / 1,551 |
| 212. | 0.3% | Moulton-Udell Community School District / 1,375 |
| 212. | 0.3% | Mount Ayr Community School District / 4,141 |
| 214. | 0.3% | Farragut Community School District / 1,483 |
| 215. | 0.3% | Remsen-Union Community School District / 3,013 |
| 215. | 0.3% | Martensdale-St. Marys Community School District / 3,019 |
| 217. | 0.3% | Bettendorf Community School District / 23,151 |
| 218. | 0.2% | Gladbrook-Reinbeck Community School District / 4,417 |
| 219. | 0.2% | Waco Community School District / 3,209 |
| 219. | 0.2% | Rudd-Rockford-Marble Rock Community School District / 2,956 |
| 221. | 0.2% | North Scott Community School District / 15,673 |
| 221. | 0.2% | Benton Community School District / 9,202 |
| 223. | 0.2% | Bennett Community School District / 1,138 |
| 223. | 0.2% | Bedford Community School District / 3,075 |
| 223. | 0.2% | Postville Community School District / 3,489 |
| 226. | 0.2% | H-L-V Community School District / 2,207 |
| 226. | 0.2% | East Union Community School District / 3,256 |
| 226. | 0.2% | South O'Brien Community School District / 4,582 |
| 226. | 0.2% | Sibley-Ocheyedan Community School District / 4,603 |
| 226. | 0.2% | Pleasantville Community School District / 3,661 |
| 231. | 0.2% | Clear Creek-Amana Community School District / 12,321 |
| 232. | 0.2% | Interstate 35 Community School District / 4,979 |
| 233. | 0.2% | East Central Community School District / 4,005 |
| 234. | 0.1% | Wapsie Valley Community School District / 3,790 |
| 234. | 0.1% | Corning Community School District / 2,814 |
| 236. | 0.1% | Pekin Community School District / 3,690 |
| 237. | 0.1% | West Lyon Community School District / 4,823 |
| 237. | 0.1% | South Tama County Community School District / 8,674 |
| 239. | 0.1% | Wall Lake View Auburn Community School District / 5,728 |
| 240. | 0.1% | Edgewood-Colesburg Community School District / 2,949 |
| 241. | 0.1% | Nashua-Plainfield Community School District / 3,878 |
| 242. | 0.1% | Manson Northwest Webster Community School District / 4,280 |
| 242. | 0.1% | West Marshall Community School District / 4,951 |
| 242. | 0.1% | MOC-Floyd Valley Community School District / 11,218 |
| 245. | 0.0% | Maquoketa Valley Community School District / 4,450 |
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.
