| Rank | Average Household Size ▼ | School District / Population |
| 1. | 5.85 | Liberty Elementary School District / 76 |
| 2. | 5.82 | Plenty Coups High School District / 961 |
| 2. | 5.82 | Pryor Elementary School District / 961 |
| 4. | 5.50 | Gildford Colony Elementary School District / 110 |
| 5. | 4.75 | Brockton Elementary School District / 922 |
| 5. | 4.75 | Brockton High School District / 922 |
| 7. | 4.47 | Lodge Grass Elementary School District / 1,921 |
| 8. | 4.33 | Lame Deer Elementary School District / 3,168 |
| 9. | 4.18 | Lodge Grass High School District / 2,319 |
| 10. | 3.85 | Valley View Elementary School District / 427 |
| 11. | 3.76 | Molt Elementary School District / 184 |
| 12. | 3.73 | Lame Deer High School District / 5,339 |
| 13. | 3.73 | North Harlem Colony Elementary School District / 41 |
| 14. | 3.65 | Heart Butte K-12 Schools / 826 |
| 15. | 3.49 | Frontier Elementary School District / 566 |
| 16. | 3.49 | Auchard Creek Elementary School District / 143 |
| 17. | 3.48 | Morin Elementary School District / 533 |
| 18. | 3.47 | Rocky Boy Elementary School District / 2,389 |
| 19. | 3.44 | Browning Elementary School District / 8,110 |
| 20. | 3.43 | Smith Valley Elementary School District / 1,761 |
| 21. | 3.43 | Browning High School District / 8,960 |
| 22. | 3.42 | Rocky Boy High School District / 1,498 |
| 23. | 3.38 | Ross Elementary School District / 44 |
| 24. | 3.35 | East Glacier Park Elementary School District / 850 |
| 25. | 3.30 | Dixon Elementary School District / 634 |
| 26. | 3.27 | Corvallis K-12 Schools / 7,291 |
| 27. | 3.24 | Helena Flats Elementary School District / 1,534 |
| 28. | 3.23 | Hardin Elementary School District / 8,993 |
| 29. | 3.22 | Hardin High School District / 8,013 |
| 30. | 3.18 | Wyola Elementary School District / 398 |
| 31. | 3.15 | Montana City Elementary School District / 2,543 |
| 32. | 3.15 | Columbia Falls Elementary School District / 13,994 |
| 33. | 3.14 | Basin Elementary School District / 264 |
| 34. | 3.14 | Reichle Elementary School District / 116 |
| 35. | 3.13 | Ringling Elementary School District / 94 |
| 36. | 3.13 | Lone Rock Elementary School District / 3,252 |
| 37. | 3.12 | Pleasant Valley Elementary School District / 103 |
| 38. | 3.12 | Columbia Falls High School District / 14,405 |
| 39. | 3.11 | King Colony Elementary School District / 140 |
| 40. | 3.09 | Kila Elementary School District / 1,231 |
| 41. | 3.09 | Fair-Mont-Egan Elementary School District / 1,130 |
| 42. | 3.09 | Swan River Elementary School District / 1,685 |
| 43. | 3.07 | Harlem Elementary School District / 2,676 |
| 44. | 3.06 | Dupuyer Elementary School District / 309 |
| 45. | 3.06 | Independent Elementary School District / 2,555 |
| 46. | 3.06 | Harlem High School District / 2,771 |
| 47. | 3.05 | Frenchtown K-12 Schools / 5,970 |
| 48. | 3.05 | Townsend K-12 Schools / 4,335 |
| 49. | 3.05 | Trail Creek Elementary School District / 64 |
| 50. | 3.04 | West Valley Elementary School District / 2,822 |
| 51. | 3.03 | Melville Elementary School District / 242 |
| 52. | 3.02 | Bainville K-12 Schools / 335 |
| 53. | 3.01 | Olney-Bissell Elementary School District / 927 |
| 54. | 3.01 | Cardwell Elementary School District / 481 |
| 55. | 3.00 | Florence-Carlton K-12 Schools / 5,688 |
| 56. | 3.00 | Poplar High School District / 3,329 |
| 56. | 3.00 | Poplar Elementary School District / 3,329 |
| 58. | 2.99 | Ashland Elementary School District / 1,156 |
| 59. | 2.99 | Melstone High School District / 424 |
| 60. | 2.98 | Wolf Point High School District / 4,281 |
| 61. | 2.97 | Blue Creek Elementary School District / 2,190 |
| 62. | 2.96 | Greycliff Elementary School District / 284 |
| 63. | 2.95 | Miami Elementary School District / 112 |
| 64. | 2.95 | Springdale Elementary School District / 165 |
| 65. | 2.94 | Charlo High School District / 1,976 |
| 66. | 2.94 | Cayuse Prairie Elementary School District / 2,511 |
| 67. | 2.92 | Lavina K-12 Schools / 532 |
| 68. | 2.92 | Luther Elementary School District / 441 |
| 69. | 2.92 | Wolf Point Elementary School District / 3,715 |
| 70. | 2.92 | Jefferson High School District / 7,804 |
| 71. | 2.91 | Shepherd Elementary School District / 2,920 |
| 71. | 2.91 | Shepherd High School District / 2,920 |
| 73. | 2.90 | Creston Elementary School District / 1,060 |
| 74. | 2.89 | Ronan High School District / 8,304 |
| 74. | 2.89 | Ronan Elementary School District / 8,304 |
| 76. | 2.88 | Park City Elementary School District / 2,206 |
| 77. | 2.88 | Park City High School District / 2,065 |
| 78. | 2.87 | Broadview High School District / 937 |
| 79. | 2.87 | Hays-Lodge Pole K-12 Schools / 1,016 |
| 80. | 2.86 | Big Timber Elementary School District / 2,819 |
| 81. | 2.85 | Pendroy Elementary School District / 334 |
| 82. | 2.85 | East Helena Elementary School District / 8,387 |
| 83. | 2.85 | Drummond Elementary School District / 948 |
| 84. | 2.85 | Broadview Elementary School District / 871 |
| 85. | 2.84 | Evergreen Elementary School District / 5,740 |
| 86. | 2.84 | Box Elder Elementary School District / 335 |
| 86. | 2.84 | Box Elder High School District / 335 |
| 88. | 2.84 | Lockwood Elementary School District / 7,389 |
| 89. | 2.83 | Amsterdam Elementary School District / 1,390 |
| 90. | 2.83 | Culbertson High School District / 921 |
| 91. | 2.82 | Rau Elementary School District / 271 |
| 92. | 2.82 | Whitehall High School District / 3,725 |
| 93. | 2.81 | Big Sandy High School District / 2,034 |
| 94. | 2.81 | Potomac Elementary School District / 1,138 |
| 95. | 2.81 | Clancy Elementary School District / 2,569 |
| 96. | 2.81 | Lambert Elementary School District / 407 |
| 97. | 2.81 | Noxon Elementary School District / 1,313 |
| 98. | 2.80 | Lambert High School District / 384 |
| 99. | 2.80 | Victor K-12 Schools / 3,644 |
| 100. | 2.80 | Charlo Elementary School District / 1,342 |
| 101. | 2.79 | Anderson Elementary School District / 1,129 |
| 102. | 2.79 | St. Ignatius K-12 Schools / 3,138 |
| 103. | 2.79 | Sweet Grass County High School District / 3,567 |
| 104. | 2.79 | Whitehall Elementary School District / 3,168 |
| 105. | 2.79 | Stevensville High School District / 9,879 |
| 106. | 2.78 | Deer Park Elementary School District / 765 |
| 107. | 2.78 | Culbertson Elementary School District / 1,019 |
| 108. | 2.78 | Sun River Valley Elementary School District / 2,060 |
| 109. | 2.77 | Manhattan High School District / 3,940 |
| 110. | 2.76 | Belgrade Elementary School District / 19,573 |
| 111. | 2.76 | Manhattan Elementary School District / 2,523 |
| 112. | 2.76 | Belgrade High School District / 19,773 |
| 113. | 2.75 | Chester-Joplin-Inverness High School District / 2,290 |
| 114. | 2.75 | Flathead High School District / 52,794 |
| 115. | 2.75 | Boulder Elementary School District / 2,428 |
| 116. | 2.75 | Warrick Elementary School District / 22 |
| 117. | 2.75 | Drummond High School District / 1,207 |
| 118. | 2.74 | Bigfork High School District / 7,893 |
| 119. | 2.74 | Camas Prairie Elementary School District / 249 |
| 120. | 2.73 | Chester-Joplin-Inverness Elementary School District / 2,185 |
| 121. | 2.72 | Target Range Elementary School District / 3,277 |
| 122. | 2.72 | Woodman Elementary School District / 580 |
| 123. | 2.72 | Simms High School District / 3,100 |
| 124. | 2.72 | Rapelje High School District / 351 |
| 125. | 2.72 | Greenfield Elementary School District / 598 |
| 126. | 2.72 | Canyon Creek Elementary School District / 1,807 |
| 127. | 2.71 | Highwood Elementary School District / 540 |
| 128. | 2.71 | Cottonwood Elementary School District / 236 |
| 129. | 2.70 | Ulm Elementary School District / 753 |
| 130. | 2.70 | Whitewater K-12 Schools / 143 |
| 131. | 2.70 | Eureka Elementary School District / 4,157 |
| 132. | 2.69 | Elliston Elementary School District / 291 |
| 133. | 2.68 | Frazer Elementary School District / 424 |
| 134. | 2.68 | Roy K-12 Schools / 348 |
| 134. | 2.68 | Sunset Elementary School District / 174 |
| 136. | 2.67 | Hysham K-12 Schools / 912 |
| 137. | 2.67 | Elder Grove Elementary School District / 2,053 |
| 138. | 2.66 | Bigfork Elementary School District / 6,078 |
| 139. | 2.66 | Highwood High School District / 482 |
| 140. | 2.65 | Pioneer Elementary School District / 792 |
| 141. | 2.65 | Kalispell Elementary School District / 28,562 |
| 142. | 2.65 | Seeley Lake Elementary School District / 1,614 |
| 143. | 2.65 | Stevensville Elementary School District / 6,627 |
| 144. | 2.64 | Lolo Elementary School District / 3,934 |
| 145. | 2.64 | Avon Elementary School District / 177 |
| 146. | 2.64 | Frazer High School District / 586 |
| 147. | 2.64 | Power Elementary School District / 520 |
| 148. | 2.64 | North Star High School District / 1,214 |
| 149. | 2.64 | Power High School District / 525 |
| 150. | 2.63 | Plains Elementary School District / 2,960 |
| 151. | 2.63 | Fairfield Elementary School District / 1,115 |
| 152. | 2.63 | Laurel Elementary School District / 10,532 |
| 153. | 2.63 | Sunburst K-12 Schools / 1,300 |
| 154. | 2.63 | Wolf Creek Elementary School District / 407 |
| 155. | 2.62 | Fairfield High School District / 1,888 |
| 156. | 2.62 | Arlee Elementary School District / 2,377 |
| 156. | 2.62 | Arlee High School District / 2,377 |
| 158. | 2.62 | Vaughn Elementary School District / 1,040 |
| 159. | 2.62 | Harrison K-12 Schools / 927 |
| 160. | 2.61 | Garrison Elementary School District / 146 |
| 161. | 2.61 | Lincoln County High School District / 5,421 |
| 162. | 2.61 | Colstrip Elementary School District / 2,351 |
| 162. | 2.61 | Colstrip High School District / 2,351 |
| 164. | 2.60 | Belt High School District / 2,020 |
| 165. | 2.60 | S Y Elementary School District / 78 |
| 165. | 2.60 | Gold Creek Elementary School District / 221 |
| 167. | 2.60 | Cut Bank High School District / 4,451 |
| 167. | 2.60 | Cut Bank Elementary School District / 4,451 |
| 169. | 2.60 | Name N/A / 842 |
| 170. | 2.59 | Columbus High School District / 3,493 |
| 171. | 2.59 | Bonner Elementary School District / 2,365 |
| 172. | 2.59 | Valier High School District / 1,417 |
| 173. | 2.58 | Helmville Elementary School District / 230 |
| 174. | 2.58 | Laurel High School District / 10,015 |
| 175. | 2.58 | Somers Elementary School District / 4,396 |
| 176. | 2.58 | Cottonwood Elementary School District / 356 |
| 177. | 2.58 | Belt Elementary School District / 2,043 |
| 178. | 2.58 | Melstone Elementary School District / 619 |
| 179. | 2.58 | Columbus Elementary School District / 3,352 |
| 180. | 2.57 | Twin Bridges K-12 Schools / 1,351 |
| 181. | 2.57 | Grant Elementary School District / 113 |
| 182. | 2.57 | Superior K-12 Schools / 2,370 |
| 183. | 2.57 | Absarokee Elementary School District / 1,841 |
| 184. | 2.57 | Joliet High School District / 2,178 |
| 185. | 2.56 | Geraldine High School District / 713 |
| 186. | 2.55 | Winifred K-12 Schools / 489 |
| 187. | 2.55 | Trinity Elementary School District / 1,242 |
| 188. | 2.54 | Geraldine Elementary School District / 652 |
| 189. | 2.53 | Monforton Elementary School District / 1,807 |
| 190. | 2.53 | Noxon High School District / 2,229 |
| 191. | 2.53 | Lustre Elementary School District / 162 |
| 192. | 2.52 | Denton Elementary School District / 664 |
| 193. | 2.52 | St. Regis K-12 Schools / 1,055 |
| 194. | 2.52 | Denton High School District / 671 |
| 195. | 2.52 | Plains High School District / 3,352 |
| 196. | 2.52 | Whitefish High School District / 14,617 |
| 197. | 2.51 | Lindsay Elementary School District / 387 |
| 198. | 2.51 | De Smet Elementary School District / 580 |
| 199. | 2.51 | Malmborg Elementary School District / 133 |
| 200. | 2.51 | Hellgate Elementary School District / 10,647 |
| 201. | 2.51 | Fishtail Elementary School District / 366 |
| 202. | 2.50 | Belfry K-12 Schools / 553 |
| 203. | 2.50 | Pine Grove Elementary School District / 100 |
| 204. | 2.50 | Dillon Elementary School District / 7,428 |
| 205. | 2.50 | North Star Elementary School District / 1,082 |
| 206. | 2.50 | Whitefish Elementary School District / 14,029 |
| 207. | 2.50 | Sheridan Elementary School District / 1,783 |
| 208. | 2.50 | Name N/A / 852,731 |
| 209. | 2.49 | Havre Elementary School District / 12,764 |
| 210. | 2.49 | Arrowhead Elementary School District / 1,852 |
| 211. | 2.49 | Havre High School District / 13,197 |
| 212. | 2.48 | Kircher Elementary School District / 728 |
| 213. | 2.48 | Deep Creek Elementary School District / 149 |
| 214. | 2.48 | Alberton K-12 Schools / 1,100 |
| 215. | 2.48 | Hawks Home Elementary School District / 119 |
| 216. | 2.48 | Valier Elementary School District / 1,108 |
| 217. | 2.48 | Marion Elementary School District / 840 |
| 218. | 2.48 | Gallatin Gateway Elementary School District / 1,489 |
| 219. | 2.47 | McCormick Elementary School District / 344 |
| 220. | 2.47 | Absarokee High School District / 2,256 |
| 221. | 2.47 | Helena High School District / 58,464 |
| 222. | 2.47 | La Motte Elementary School District / 734 |
| 223. | 2.47 | Centerville Elementary School District / 1,526 |
| 224. | 2.46 | Sheridan High School District / 2,075 |
| 225. | 2.46 | Kinsey Elementary School District / 416 |
| 226. | 2.46 | Shields Valley Elementary School District / 1,731 |
| 226. | 2.46 | Shields Valley High School District / 1,731 |
| 228. | 2.46 | South Stacey Elementary School District / 113 |
| 229. | 2.45 | Beaverhead County High School District / 8,478 |
| 230. | 2.45 | Philipsburg K-12 Schools / 1,673 |
| 231. | 2.45 | Centerville High School District / 1,474 |
| 232. | 2.45 | Bozeman High School District / 58,563 |
| 233. | 2.45 | Cascade High School District / 2,659 |
| 234. | 2.44 | Hall Elementary School District / 259 |
| 235. | 2.44 | Cottonwood Elementary School District / 149 |
| 236. | 2.44 | Bozeman Elementary School District / 51,961 |
| 237. | 2.44 | Great Falls Elementary School District / 72,584 |
| 238. | 2.44 | Great Falls High School District / 72,659 |
| 239. | 2.44 | Huntley Project K-12 Schools / 3,750 |
| 240. | 2.43 | Billings High School District / 122,509 |
| 241. | 2.43 | Hot Springs High School District / 1,668 |
| 242. | 2.42 | Dodson Elementary School District / 276 |
| 243. | 2.42 | Missoula High School District / 97,049 |
| 244. | 2.42 | Fromberg K-12 Schools / 1,105 |
| 245. | 2.41 | Bridger K-12 Schools / 1,205 |
| 246. | 2.41 | Helena Elementary School District / 48,201 |
| 247. | 2.41 | Big Sandy Elementary School District / 1,121 |
| 248. | 2.41 | Roundup Elementary School District / 3,797 |
| 249. | 2.41 | Roundup High School District / 3,958 |
| 250. | 2.40 | Knees Elementary School District / 108 |
| 250. | 2.40 | Van Norman Elementary School District / 108 |
| 252. | 2.40 | Dodson High School District / 331 |
| 253. | 2.40 | Reedpoint High School District / 501 |
| 254. | 2.39 | Bear Paw Elementary School District / 122 |
| 255. | 2.39 | Hamilton K-12 Schools / 11,767 |
| 256. | 2.39 | Park High School District / 12,686 |
| 257. | 2.39 | Lincoln K-12 Schools / 978 |
| 258. | 2.38 | Vida Elementary School District / 534 |
| 259. | 2.38 | Pine Creek Elementary School District / 367 |
| 260. | 2.38 | Ramsay Elementary School District / 1,040 |
| 261. | 2.38 | Nashua K-12 Schools / 935 |
| 262. | 2.38 | Fortine Elementary School District / 604 |
| 263. | 2.37 | Billings Elementary School District / 104,681 |
| 264. | 2.37 | Hot Springs Elementary School District / 1,419 |
| 265. | 2.37 | S H Elementary School District / 121 |
| 266. | 2.37 | Missoula Elementary School District / 70,583 |
| 267. | 2.37 | Galata Elementary School District / 289 |
| 268. | 2.37 | Thompson Falls High School District / 3,096 |
| 268. | 2.37 | Thompson Falls Elementary School District / 3,096 |
| 270. | 2.36 | Livingston Elementary School District / 10,306 |
| 271. | 2.36 | Sand Springs Elementary School District / 85 |
| 272. | 2.36 | Roberts K-12 Schools / 688 |
| 273. | 2.36 | Willow Creek Elementary School District / 212 |
| 274. | 2.35 | Cascade Elementary School District / 1,757 |
| 275. | 2.35 | Reedpoint Elementary School District / 549 |
| 276. | 2.34 | Upper West Shore Elementary School District / 757 |
| 277. | 2.34 | Pass Creek Elementary School District / 82 |
| 278. | 2.34 | Polson High School District / 10,702 |
| 279. | 2.33 | Deerfield Elementary School District / 7 |
| 279. | 2.33 | Clinton Elementary School District / 1,666 |
| 281. | 2.33 | Medicine Lake K-12 Schools / 723 |
| 282. | 2.33 | Trego Elementary School District / 660 |
| 283. | 2.33 | Opheim K-12 Schools / 415 |
| 284. | 2.33 | Rapelje Elementary School District / 233 |
| 285. | 2.33 | Powell County High School District / 7,151 |
| 286. | 2.33 | White Sulphur Springs High School District / 1,628 |
| 287. | 2.33 | Winnett K-12 Schools / 512 |
| 288. | 2.32 | Broadus Elementary School District / 1,363 |
| 289. | 2.32 | Spring Creek Elementary School District / 86 |
| 290. | 2.32 | Red Lodge High School District / 4,012 |
| 291. | 2.32 | Moore Elementary School District / 387 |
| 291. | 2.32 | Moore High School District / 387 |
| 293. | 2.32 | Three Forks Elementary School District / 2,639 |
| 294. | 2.31 | Joliet Elementary School District / 1,624 |
| 295. | 2.31 | Turner Elementary School District / 312 |
| 296. | 2.31 | Golden Ridge Elementary School District / 180 |
| 297. | 2.31 | Augusta High School District / 639 |
| 298. | 2.31 | Three Forks High School District / 2,592 |
| 299. | 2.31 | Twin Buttes Elementary School District / 83 |
| 300. | 2.31 | Judith Gap High School District / 302 |
| 300. | 2.31 | Judith Gap Elementary School District / 302 |
| 302. | 2.30 | White Sulphur Springs Elementary School District / 1,482 |
| 303. | 2.30 | Forsyth Elementary School District / 2,497 |
| 304. | 2.30 | Powder River County High School District / 1,691 |
| 305. | 2.30 | Hinsdale Elementary School District / 382 |
| 306. | 2.30 | Polson Elementary School District / 9,518 |
| 307. | 2.30 | Alder Elementary School District / 292 |
| 308. | 2.30 | Hinsdale High School District / 418 |
| 309. | 2.29 | West Yellowstone K-12 School District / 1,493 |
| 310. | 2.29 | Circle High School District / 1,747 |
| 311. | 2.29 | Landusky Elementary School District / 55 |
| 312. | 2.29 | Brorson Elementary School District / 222 |
| 313. | 2.28 | Choteau High School District / 3,107 |
| 314. | 2.28 | Willow Creek High School District / 169 |
| 315. | 2.28 | Deer Creek Elementary School District / 1,622 |
| 316. | 2.28 | Birney Elementary School District / 73 |
| 317. | 2.27 | Deer Lodge Elementary School District / 5,878 |
| 318. | 2.27 | Forsyth High School District / 2,531 |
| 319. | 2.27 | Carter Elementary School District / 143 |
| 320. | 2.26 | Divide Elementary School District / 138 |
| 321. | 2.26 | Harlowton Elementary School District / 1,669 |
| 322. | 2.26 | Fergus High School District / 8,858 |
| 323. | 2.25 | Circle Elementary School District / 1,213 |
| 324. | 2.25 | Red Lodge Elementary School District / 3,445 |
| 325. | 2.25 | Harlowton High School District / 1,772 |
| 326. | 2.25 | Lewistown Elementary School District / 8,714 |
| 327. | 2.25 | Swan Lake-Salmon Elementary School District / 218 |
| 328. | 2.23 | Fairview Elementary School District / 1,403 |
| 329. | 2.23 | Turner High School District / 321 |
| 330. | 2.23 | Dutton/Brady K-12 Schools / 945 |
| 331. | 2.23 | Choteau Elementary School District / 2,612 |
| 332. | 2.23 | Ophir Elementary School District / 1,074 |
| 333. | 2.23 | Chinook High School District / 2,407 |
| 334. | 2.23 | Fairview High School District / 1,413 |
| 335. | 2.22 | Westby K-12 Schools / 358 |
| 336. | 2.22 | Trout Creek Elementary School District / 916 |
| 337. | 2.22 | Darby K-12 Schools / 3,077 |
| 338. | 2.22 | Jackson Elementary School District / 171 |
| 339. | 2.22 | Chinook Elementary School District / 2,022 |
| 340. | 2.22 | Baker K-12 Schools / 2,302 |
| 341. | 2.21 | Garfield County High School District / 1,135 |
| 342. | 2.21 | Butte High School District / 32,714 |
| 343. | 2.21 | Bynum Elementary School District / 161 |
| 344. | 2.20 | Butte Elementary School District / 31,449 |
| 345. | 2.20 | Troy High School District / 3,222 |
| 346. | 2.20 | Bloomfield Elementary School District / 99 |
| 347. | 2.20 | Carter County High School District / 1,237 |
| 348. | 2.19 | Zurich Elementary School District / 263 |
| 349. | 2.19 | Plevna K-12 Schools / 355 |
| 350. | 2.19 | Troy Elementary School District / 2,612 |
| 351. | 2.19 | Libby K-12 Schools / 10,055 |
| 352. | 2.19 | Ovando Elementary School District / 208 |
| 353. | 2.19 | Ennis K-12 Schools / 2,563 |
| 354. | 2.18 | Shelby High School District / 3,810 |
| 355. | 2.18 | Conrad High School District / 3,333 |
| 356. | 2.18 | Lima K-12 Schools / 409 |
| 357. | 2.17 | Ekalaka Elementary School District / 958 |
| 358. | 2.17 | West Glacier Elementary School District / 411 |
| 359. | 2.17 | Richey High School District / 473 |
| 360. | 2.17 | Shelby Elementary School District / 3,521 |
| 361. | 2.17 | Wibaux K-12 Schools / 922 |
| 362. | 2.16 | Conrad Elementary School District / 3,221 |
| 363. | 2.16 | Alzada Elementary School District / 160 |
| 364. | 2.16 | Hobson K-12 Schools / 875 |
| 365. | 2.16 | Elysian Elementary School District / 488 |
| 366. | 2.16 | Sidney High School District / 6,811 |
| 367. | 2.16 | Fort Benton High School District / 1,994 |
| 368. | 2.16 | Swan Valley Elementary School District / 403 |
| 369. | 2.15 | Jordan Elementary School District / 640 |
| 370. | 2.15 | Glasgow K-12 Schools / 4,534 |
| 371. | 2.14 | Ayers Elementary School District / 15 |
| 372. | 2.14 | Custer County High School District / 11,129 |
| 373. | 2.13 | Fort Benton Elementary School District / 1,699 |
| 374. | 2.13 | Sidney Elementary School District / 6,244 |
| 375. | 2.12 | Savage High School District / 520 |
| 376. | 2.12 | Biddle Elementary School District / 70 |
| 377. | 2.12 | Rosebud Elementary School District / 375 |
| 378. | 2.12 | Rosebud High School District / 398 |
| 379. | 2.12 | Richey Elementary School District / 381 |
| 380. | 2.10 | Geyser Elementary School District / 202 |
| 381. | 2.10 | Shawmut Elementary School District / 103 |
| 382. | 2.10 | Augusta Elementary School District / 496 |
| 383. | 2.10 | Scobey K-12 Schools / 1,346 |
| 384. | 2.10 | Savage Elementary School District / 499 |
| 385. | 2.09 | Stanford K-12 Schools / 857 |
| 386. | 2.09 | Miles City Elementary School District / 9,488 |
| 387. | 2.09 | Geyser High School District / 334 |
| 388. | 2.08 | Dawson High School District / 8,074 |
| 389. | 2.06 | Raynesford Elementary School District / 132 |
| 390. | 2.06 | Grass Range High School District / 420 |
| 391. | 2.06 | Grass Range Elementary School District / 405 |
| 392. | 2.06 | Yaak Elementary School District / 148 |
| 393. | 2.04 | Benton Lake Elementary School District / 47 |
| 394. | 2.04 | Wise River Elementary School District / 294 |
| 395. | 2.02 | McLeod Elementary School District / 170 |
| 396. | 2.02 | Springhill Elementary School District / 131 |
| 397. | 2.00 | Polaris Elementary School District / 118 |
| 397. | 2.00 | Lennep Elementary School District / 52 |
| 397. | 2.00 | Spring Creek Colony Elementary School District / 4 |
| 400. | 1.99 | Glendive Elementary School District / 6,042 |
| 401. | 1.99 | Froid Elementary School District / 443 |
| 401. | 1.99 | Froid High School District / 443 |
| 403. | 1.98 | Gardiner Elementary School District / 1,710 |
| 404. | 1.97 | Name N/A / 300 |
| 405. | 1.97 | Cleveland Elementary School District / 63 |
| 406. | 1.97 | Sylvanite Elementary School District / 118 |
| 407. | 1.96 | Gardiner High School District / 1,787 |
| 408. | 1.96 | Cohagen Elementary School District / 55 |
| 409. | 1.96 | Name N/A / 227 |
| 410. | 1.96 | Terry K-12 Schools / 1,004 |
| 411. | 1.95 | Spring Creek Elementary School District / 78 |
| 412. | 1.93 | Malta K-12 Schools / 3,097 |
| 413. | 1.92 | Anaconda Elementary School District / 8,737 |
| 414. | 1.92 | Anaconda High School District / 8,782 |
| 415. | 1.92 | Ryegate K-12 Schools / 341 |
| 416. | 1.91 | Paradise Elementary School District / 392 |
| 417. | 1.88 | Custer K-12 Schools / 400 |
| 418. | 1.87 | Davey Elementary School District / 99 |
| 419. | 1.85 | Plentywood K-12 Schools / 2,487 |
| 420. | 1.84 | Saco Elementary School District / 424 |
| 421. | 1.84 | Wisdom Elementary School District / 283 |
| 422. | 1.83 | Big Dry Creek Elementary School District / 33 |
| 423. | 1.81 | Saco High School District / 388 |
| 424. | 1.79 | Cooke City Elementary School District / 77 |
| 425. | 1.76 | Peerless K-12 Schools / 137 |
| 426. | 1.73 | Nye Elementary School District / 175 |
| 427. | 1.71 | Whitlash Elementary School District / 29 |
| 428. | 1.52 | Kester Elementary School District / 38 |
| 429. | 1.40 | Melrose Elementary School District / 87 |
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.
*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.
