| Rank | Percentage of Population Age 75 to 84 ▼ | School District / Population |
| 1. | 17.0% | South Stacey Elementary School District / 47 |
| 2. | 15.4% | Dupuyer Elementary School District / 188 |
| 3. | 15.3% | Opheim K-12 Schools / 307 |
| 4. | 13.3% | Bloomfield Elementary School District / 98 |
| 5. | 13.0% | St. Regis K-12 Schools / 1,333 |
| 6. | 12.7% | Vida Elementary School District / 591 |
| 7. | 12.0% | Helmville Elementary School District / 299 |
| 8. | 11.9% | Biddle Elementary School District / 101 |
| 9. | 11.7% | Ekalaka Elementary School District / 884 |
| 10. | 11.6% | Deep Creek Elementary School District / 95 |
| 11. | 11.5% | Wolf Creek Elementary School District / 581 |
| 12. | 11.4% | Springdale Elementary School District / 210 |
| 13. | 11.4% | Spring Creek Elementary School District / 44 |
| 14. | 11.2% | Melstone Elementary School District / 402 |
| 15. | 10.9% | Hot Springs High School District / 1,471 |
| 16. | 10.6% | Wibaux K-12 Schools / 987 |
| 17. | 10.6% | Bynum Elementary School District / 301 |
| 18. | 10.6% | Pine Grove Elementary School District / 66 |
| 18. | 10.6% | Shawmut Elementary School District / 66 |
| 20. | 10.5% | Ryegate K-12 Schools / 353 |
| 21. | 10.3% | Scobey K-12 Schools / 1,813 |
| 22. | 10.3% | Carter County High School District / 1,187 |
| 23. | 10.2% | Medicine Lake K-12 Schools / 747 |
| 24. | 10.1% | Melstone High School District / 179 |
| 25. | 9.8% | Wisdom Elementary School District / 285 |
| 25. | 9.8% | Lincoln K-12 Schools / 1,130 |
| 27. | 9.7% | Westby K-12 Schools / 299 |
| 28. | 9.7% | Cottonwood Elementary School District / 114 |
| 29. | 9.6% | Twin Bridges K-12 Schools / 1,382 |
| 30. | 9.6% | Molt Elementary School District / 157 |
| 31. | 9.5% | Augusta Elementary School District / 685 |
| 32. | 9.4% | Augusta High School District / 689 |
| 33. | 9.4% | Circle High School District / 1,758 |
| 34. | 9.3% | West Glacier Elementary School District / 570 |
| 35. | 9.3% | Custer K-12 Schools / 411 |
| 36. | 9.2% | Whitewater K-12 Schools / 174 |
| 37. | 9.1% | Plevna K-12 Schools / 460 |
| 38. | 9.0% | Nashua K-12 Schools / 800 |
| 39. | 8.9% | Rosebud High School District / 482 |
| 40. | 8.8% | Pioneer Elementary School District / 1,147 |
| 41. | 8.8% | Swan Lake-Salmon Elementary School District / 387 |
| 42. | 8.8% | Swan Valley Elementary School District / 639 |
| 43. | 8.7% | Darby K-12 Schools / 3,554 |
| 44. | 8.7% | Terry K-12 Schools / 1,282 |
| 45. | 8.7% | Bear Paw Elementary School District / 104 |
| 46. | 8.6% | Harlowton High School District / 1,882 |
| 47. | 8.6% | Drummond Elementary School District / 1,167 |
| 47. | 8.6% | Plains Elementary School District / 2,788 |
| 49. | 8.6% | Richey High School District / 491 |
| 50. | 8.5% | Harlowton Elementary School District / 1,816 |
| 51. | 8.4% | Ovando Elementary School District / 239 |
| 52. | 8.2% | Chester-Joplin-Inverness Elementary School District / 2,185 |
| 52. | 8.2% | Belt Elementary School District / 1,832 |
| 54. | 8.2% | Plains High School District / 3,177 |
| 55. | 8.2% | Rau Elementary School District / 391 |
| 55. | 8.2% | Cascade Elementary School District / 1,907 |
| 57. | 8.2% | Malta K-12 Schools / 3,160 |
| 57. | 8.2% | Hamilton K-12 Schools / 11,592 |
| 59. | 8.1% | Belt High School District / 1,774 |
| 60. | 8.1% | Fort Benton Elementary School District / 1,728 |
| 61. | 8.1% | Hobson K-12 Schools / 755 |
| 62. | 8.0% | Powder River County High School District / 1,728 |
| 63. | 8.0% | Cascade High School District / 2,639 |
| 64. | 8.0% | Lewistown Elementary School District / 8,920 |
| 65. | 7.9% | Lindsay Elementary School District / 291 |
| 66. | 7.9% | Grant Elementary School District / 76 |
| 67. | 7.9% | Fergus High School District / 9,271 |
| 68. | 7.9% | Deer Creek Elementary School District / 1,810 |
| 69. | 7.8% | Philipsburg K-12 Schools / 1,644 |
| 69. | 7.8% | Lavina K-12 Schools / 385 |
| 71. | 7.8% | Brorson Elementary School District / 116 |
| 72. | 7.8% | Jackson Elementary School District / 129 |
| 73. | 7.7% | Circle Elementary School District / 1,167 |
| 74. | 7.7% | Chester-Joplin-Inverness High School District / 2,391 |
| 75. | 7.6% | Polson Elementary School District / 10,500 |
| 76. | 7.6% | Nye Elementary School District / 210 |
| 77. | 7.6% | McCormick Elementary School District / 500 |
| 78. | 7.5% | Chinook Elementary School District / 1,856 |
| 79. | 7.5% | White Sulphur Springs Elementary School District / 1,919 |
| 80. | 7.5% | Choteau High School District / 2,921 |
| 81. | 7.4% | Springhill Elementary School District / 148 |
| 82. | 7.4% | Choteau Elementary School District / 2,399 |
| 83. | 7.4% | Pine Creek Elementary School District / 448 |
| 84. | 7.4% | Chinook High School District / 2,241 |
| 85. | 7.3% | Harrison K-12 Schools / 749 |
| 85. | 7.3% | Conrad Elementary School District / 3,568 |
| 87. | 7.3% | Polson High School District / 11,606 |
| 87. | 7.3% | Big Timber Elementary School District / 2,771 |
| 89. | 7.3% | Greycliff Elementary School District / 234 |
| 90. | 7.2% | Woodman Elementary School District / 458 |
| 91. | 7.2% | Sunset Elementary School District / 209 |
| 92. | 7.2% | Glasgow K-12 Schools / 5,202 |
| 92. | 7.2% | Turner High School District / 307 |
| 94. | 7.1% | Drummond High School District / 1,489 |
| 95. | 7.1% | White Sulphur Springs High School District / 2,026 |
| 96. | 7.1% | McLeod Elementary School District / 240 |
| 97. | 7.1% | Forsyth High School District / 2,680 |
| 98. | 7.0% | Troy Elementary School District / 2,629 |
| 98. | 7.0% | Denton Elementary School District / 469 |
| 100. | 7.0% | Rapelje High School District / 455 |
| 101. | 7.0% | Elliston Elementary School District / 484 |
| 102. | 7.0% | Libby K-12 Schools / 9,600 |
| 103. | 7.0% | Conrad High School District / 3,800 |
| 104. | 7.0% | Jordan Elementary School District / 602 |
| 104. | 7.0% | Broadus Elementary School District / 1,476 |
| 106. | 7.0% | Fort Benton High School District / 2,166 |
| 106. | 7.0% | Whitehall Elementary School District / 3,215 |
| 108. | 7.0% | Roberts K-12 Schools / 747 |
| 109. | 6.9% | Ulm Elementary School District / 637 |
| 110. | 6.9% | Denton High School District / 479 |
| 111. | 6.9% | Superior K-12 Schools / 2,108 |
| 112. | 6.9% | Geraldine High School District / 568 |
| 112. | 6.9% | Dawson High School District / 8,728 |
| 114. | 6.8% | Troy High School District / 3,396 |
| 115. | 6.8% | Highwood High School District / 513 |
| 115. | 6.8% | Sheridan Elementary School District / 1,378 |
| 117. | 6.8% | Richey Elementary School District / 426 |
| 117. | 6.8% | Miles City Elementary School District / 10,064 |
| 119. | 6.8% | Lustre Elementary School District / 221 |
| 119. | 6.8% | Saco Elementary School District / 545 |
| 121. | 6.8% | Victor K-12 Schools / 3,538 |
| 121. | 6.8% | Valier High School District / 1,210 |
| 123. | 6.8% | Sweet Grass County High School District / 3,511 |
| 124. | 6.7% | Hinsdale High School District / 490 |
| 124. | 6.7% | Huntley Project K-12 Schools / 3,538 |
| 126. | 6.7% | Bigfork Elementary School District / 5,893 |
| 127. | 6.6% | Whitehall High School District / 3,793 |
| 128. | 6.6% | Absarokee High School District / 2,076 |
| 129. | 6.6% | Absarokee Elementary School District / 1,608 |
| 130. | 6.6% | Anaconda High School District / 9,046 |
| 130. | 6.6% | Arrowhead Elementary School District / 1,718 |
| 132. | 6.6% | Glendive Elementary School District / 6,617 |
| 133. | 6.6% | Forsyth Elementary School District / 2,609 |
| 134. | 6.5% | Anaconda Elementary School District / 8,970 |
| 135. | 6.5% | Custer County High School District / 11,869 |
| 136. | 6.5% | Turner Elementary School District / 322 |
| 137. | 6.5% | Joliet Elementary School District / 2,089 |
| 138. | 6.5% | Roy K-12 Schools / 278 |
| 139. | 6.4% | Red Lodge Elementary School District / 3,112 |
| 140. | 6.3% | Somers Elementary School District / 6,322 |
| 141. | 6.3% | Shields Valley High School District / 1,705 |
| 141. | 6.3% | Shields Valley Elementary School District / 1,705 |
| 143. | 6.3% | Rapelje Elementary School District / 348 |
| 144. | 6.3% | Hawks Home Elementary School District / 127 |
| 144. | 6.3% | Reichle Elementary School District / 127 |
| 146. | 6.3% | Townsend K-12 Schools / 5,219 |
| 147. | 6.3% | Target Range Elementary School District / 3,691 |
| 147. | 6.3% | Ennis K-12 Schools / 3,483 |
| 149. | 6.3% | Alzada Elementary School District / 176 |
| 150. | 6.2% | Three Forks High School District / 3,381 |
| 151. | 6.2% | Cardwell Elementary School District / 435 |
| 152. | 6.2% | Seeley Lake Elementary School District / 1,571 |
| 153. | 6.1% | Cut Bank High School District / 4,323 |
| 153. | 6.1% | Cut Bank Elementary School District / 4,323 |
| 155. | 6.1% | Three Forks Elementary School District / 3,485 |
| 156. | 6.0% | Saco High School District / 516 |
| 156. | 6.0% | Basin Elementary School District / 233 |
| 158. | 6.0% | Thompson Falls Elementary School District / 3,734 |
| 158. | 6.0% | Sheridan High School District / 1,650 |
| 158. | 6.0% | Thompson Falls High School District / 3,734 |
| 161. | 6.0% | Eureka Elementary School District / 4,808 |
| 162. | 5.9% | Noxon Elementary School District / 1,502 |
| 163. | 5.9% | North Star Elementary School District / 811 |
| 164. | 5.9% | Geyser High School District / 389 |
| 164. | 5.9% | Geyser Elementary School District / 389 |
| 166. | 5.9% | Belfry K-12 Schools / 628 |
| 167. | 5.9% | Hinsdale Elementary School District / 461 |
| 168. | 5.9% | Bigfork High School District / 7,593 |
| 169. | 5.8% | Park High School District / 12,483 |
| 170. | 5.8% | Laurel High School District / 10,113 |
| 170. | 5.8% | King Colony Elementary School District / 309 |
| 170. | 5.8% | Noxon High School District / 2,403 |
| 173. | 5.8% | Red Lodge High School District / 3,631 |
| 174. | 5.8% | Manhattan Elementary School District / 2,390 |
| 175. | 5.8% | Ramsay Elementary School District / 1,114 |
| 176. | 5.7% | S H Elementary School District / 157 |
| 177. | 5.7% | Kinsey Elementary School District / 559 |
| 177. | 5.7% | Plentywood K-12 Schools / 2,464 |
| 179. | 5.7% | Kalispell Elementary School District / 28,320 |
| 180. | 5.7% | Zurich Elementary School District / 281 |
| 181. | 5.7% | Galata Elementary School District / 300 |
| 181. | 5.7% | Creston Elementary School District / 1,111 |
| 183. | 5.7% | Paradise Elementary School District / 389 |
| 183. | 5.7% | Trout Creek Elementary School District / 901 |
| 185. | 5.7% | Laurel Elementary School District / 10,438 |
| 185. | 5.7% | Hysham K-12 Schools / 761 |
| 187. | 5.6% | Joliet High School District / 2,414 |
| 187. | 5.6% | North Star High School District / 941 |
| 189. | 5.5% | Livingston Elementary School District / 10,129 |
| 190. | 5.5% | Upper West Shore Elementary School District / 798 |
| 191. | 5.4% | Greenfield Elementary School District / 572 |
| 192. | 5.3% | Lincoln County High School District / 6,459 |
| 193. | 5.3% | Manhattan High School District / 4,431 |
| 194. | 5.3% | Morin Elementary School District / 397 |
| 194. | 5.3% | Divide Elementary School District / 170 |
| 194. | 5.3% | Powell County High School District / 7,207 |
| 197. | 5.3% | Benton Lake Elementary School District / 95 |
| 198. | 5.2% | Arlee Elementary School District / 2,479 |
| 198. | 5.2% | Arlee High School District / 2,479 |
| 200. | 5.2% | Great Falls High School District / 72,595 |
| 200. | 5.2% | Great Falls Elementary School District / 72,487 |
| 202. | 5.2% | Valier Elementary School District / 1,022 |
| 202. | 5.2% | Roundup High School District / 4,551 |
| 202. | 5.2% | Culbertson High School District / 924 |
| 205. | 5.2% | Culbertson Elementary School District / 1,007 |
| 205. | 5.2% | Roundup Elementary School District / 4,399 |
| 207. | 5.2% | Corvallis K-12 Schools / 7,474 |
| 208. | 5.1% | Trail Creek Elementary School District / 39 |
| 209. | 5.1% | Garfield County High School District / 1,097 |
| 210. | 5.1% | Big Sandy Elementary School District / 1,336 |
| 211. | 5.1% | Butte High School District / 34,435 |
| 212. | 5.1% | Sun River Valley Elementary School District / 2,296 |
| 212. | 5.1% | Butte Elementary School District / 33,054 |
| 214. | 5.0% | Beaverhead County High School District / 8,772 |
| 215. | 5.0% | Birney Elementary School District / 120 |
| 216. | 4.9% | Columbus High School District / 3,958 |
| 216. | 4.9% | Billings Elementary School District / 111,515 |
| 218. | 4.9% | Lone Rock Elementary School District / 3,095 |
| 218. | 4.9% | Winnett K-12 Schools / 489 |
| 218. | 4.9% | Columbia Falls High School District / 15,228 |
| 221. | 4.9% | Frontier Elementary School District / 594 |
| 222. | 4.9% | Flathead High School District / 58,126 |
| 223. | 4.8% | Dillon Elementary School District / 7,763 |
| 224. | 4.8% | Amsterdam Elementary School District / 2,008 |
| 225. | 4.8% | Deer Lodge Elementary School District / 5,648 |
| 226. | 4.8% | Lima K-12 Schools / 522 |
| 227. | 4.8% | Grass Range Elementary School District / 420 |
| 228. | 4.7% | Columbia Falls Elementary School District / 14,658 |
| 229. | 4.7% | St. Ignatius K-12 Schools / 3,369 |
| 229. | 4.7% | Winifred K-12 Schools / 424 |
| 231. | 4.7% | Columbus Elementary School District / 3,754 |
| 232. | 4.7% | Whitefish Elementary School District / 13,008 |
| 233. | 4.7% | Billings High School District / 133,015 |
| 233. | 4.7% | Anderson Elementary School District / 1,397 |
| 235. | 4.6% | Baker K-12 Schools / 2,568 |
| 236. | 4.6% | Havre Elementary School District / 12,161 |
| 237. | 4.6% | Spring Creek Elementary School District / 87 |
| 238. | 4.6% | Cayuse Prairie Elementary School District / 2,379 |
| 239. | 4.6% | Whitefish High School District / 13,669 |
| 239. | 4.6% | Name N/A / 891,341 |
| 241. | 4.6% | Centerville Elementary School District / 1,665 |
| 242. | 4.6% | Wyola Elementary School District / 374 |
| 242. | 4.6% | Warrick Elementary School District / 44 |
| 244. | 4.5% | Havre High School District / 12,531 |
| 245. | 4.5% | Simms High School District / 3,330 |
| 246. | 4.5% | Centerville High School District / 1,615 |
| 247. | 4.5% | Helena Elementary School District / 51,357 |
| 248. | 4.4% | Wise River Elementary School District / 383 |
| 249. | 4.4% | Stanford K-12 Schools / 835 |
| 250. | 4.4% | Dodson High School District / 344 |
| 251. | 4.4% | Davey Elementary School District / 46 |
| 252. | 4.3% | Blue Creek Elementary School District / 2,052 |
| 253. | 4.3% | Fair-Mont-Egan Elementary School District / 1,341 |
| 253. | 4.3% | Power High School District / 624 |
| 255. | 4.3% | Grass Range High School District / 488 |
| 256. | 4.3% | Sidney High School District / 8,438 |
| 257. | 4.2% | Avon Elementary School District / 237 |
| 258. | 4.2% | Helena High School District / 62,953 |
| 259. | 4.2% | Bridger K-12 Schools / 1,739 |
| 260. | 4.2% | Froid High School District / 502 |
| 260. | 4.2% | Froid Elementary School District / 502 |
| 262. | 4.2% | Evergreen Elementary School District / 5,586 |
| 263. | 4.1% | Dutton/Brady K-12 Schools / 1,068 |
| 264. | 4.1% | Sidney Elementary School District / 7,775 |
| 265. | 4.1% | Box Elder Elementary School District / 440 |
| 265. | 4.1% | Box Elder High School District / 440 |
| 267. | 4.1% | Ashland Elementary School District / 1,205 |
| 267. | 4.1% | Pendroy Elementary School District / 221 |
| 269. | 4.0% | Broadview High School District / 943 |
| 270. | 4.0% | Shelby High School District / 4,093 |
| 271. | 4.0% | S Y Elementary School District / 75 |
| 272. | 3.9% | Fortine Elementary School District / 898 |
| 273. | 3.9% | Frazer High School District / 719 |
| 273. | 3.9% | Elysian Elementary School District / 1,338 |
| 275. | 3.9% | Shelby Elementary School District / 3,793 |
| 275. | 3.9% | Stevensville High School District / 10,247 |
| 277. | 3.9% | Potomac Elementary School District / 1,062 |
| 278. | 3.9% | Moore Elementary School District / 519 |
| 278. | 3.9% | Moore High School District / 519 |
| 280. | 3.8% | Marion Elementary School District / 1,486 |
| 281. | 3.8% | Fishtail Elementary School District / 392 |
| 282. | 3.8% | Ronan High School District / 8,707 |
| 282. | 3.8% | Ronan Elementary School District / 8,707 |
| 282. | 3.8% | Power Elementary School District / 608 |
| 285. | 3.8% | Canyon Creek Elementary School District / 2,315 |
| 286. | 3.7% | Gildford Colony Elementary School District / 107 |
| 287. | 3.7% | Broadview Elementary School District / 893 |
| 288. | 3.7% | Savage Elementary School District / 602 |
| 289. | 3.6% | Kircher Elementary School District / 797 |
| 290. | 3.6% | Wolf Point High School District / 4,735 |
| 291. | 3.6% | Fairfield High School District / 1,965 |
| 292. | 3.6% | Alberton K-12 Schools / 1,286 |
| 293. | 3.6% | Savage High School District / 620 |
| 294. | 3.5% | Polaris Elementary School District / 85 |
| 294. | 3.5% | Lambert High School District / 283 |
| 296. | 3.5% | Park City Elementary School District / 2,265 |
| 296. | 3.5% | Deer Park Elementary School District / 1,119 |
| 298. | 3.5% | Boulder Elementary School District / 2,137 |
| 299. | 3.5% | Monforton Elementary School District / 2,232 |
| 299. | 3.5% | Wolf Point Elementary School District / 4,141 |
| 301. | 3.4% | Florence-Carlton K-12 Schools / 5,211 |
| 301. | 3.4% | Stevensville Elementary School District / 7,152 |
| 303. | 3.4% | Lodge Grass High School District / 1,841 |
| 304. | 3.4% | Clancy Elementary School District / 2,935 |
| 305. | 3.4% | Trinity Elementary School District / 1,733 |
| 306. | 3.4% | Fairfield Elementary School District / 1,270 |
| 307. | 3.4% | Vaughn Elementary School District / 1,034 |
| 307. | 3.4% | Olney-Bissell Elementary School District / 1,184 |
| 307. | 3.4% | Sand Springs Elementary School District / 148 |
| 307. | 3.4% | Gold Creek Elementary School District / 207 |
| 311. | 3.4% | Yaak Elementary School District / 267 |
| 312. | 3.4% | Missoula Elementary School District / 70,909 |
| 313. | 3.3% | Poplar Elementary School District / 3,661 |
| 313. | 3.3% | Poplar High School District / 3,661 |
| 315. | 3.3% | Missoula High School District / 102,467 |
| 315. | 3.3% | Fromberg K-12 Schools / 1,030 |
| 317. | 3.3% | Cleveland Elementary School District / 123 |
| 318. | 3.2% | Garrison Elementary School District / 93 |
| 319. | 3.2% | Jefferson High School District / 8,158 |
| 320. | 3.1% | Lodge Grass Elementary School District / 1,467 |
| 321. | 3.1% | Luther Elementary School District / 385 |
| 322. | 3.1% | Cottonwood Elementary School District / 193 |
| 323. | 3.1% | Melrose Elementary School District / 97 |
| 324. | 3.1% | Judith Gap High School District / 325 |
| 324. | 3.1% | Judith Gap Elementary School District / 325 |
| 326. | 3.0% | Hellgate Elementary School District / 13,024 |
| 327. | 3.0% | Sunburst K-12 Schools / 1,115 |
| 327. | 3.0% | Park City High School District / 2,061 |
| 327. | 3.0% | Charlo Elementary School District / 1,248 |
| 330. | 2.9% | Hardin High School District / 8,868 |
| 331. | 2.9% | Big Sandy High School District / 2,612 |
| 332. | 2.9% | Fairview High School District / 1,345 |
| 333. | 2.9% | Smith Valley Elementary School District / 1,883 |
| 334. | 2.8% | Bozeman High School District / 59,840 |
| 335. | 2.8% | Reedpoint High School District / 711 |
| 336. | 2.8% | Lambert Elementary School District / 393 |
| 337. | 2.8% | Reedpoint Elementary School District / 718 |
| 338. | 2.8% | East Glacier Park Elementary School District / 683 |
| 338. | 2.8% | Bozeman Elementary School District / 53,316 |
| 340. | 2.8% | Fairview Elementary School District / 1,303 |
| 341. | 2.7% | Charlo High School District / 1,834 |
| 342. | 2.7% | Gallatin Gateway Elementary School District / 1,711 |
| 343. | 2.7% | Hays-Lodge Pole K-12 Schools / 1,459 |
| 344. | 2.7% | Trego Elementary School District / 753 |
| 345. | 2.6% | Frazer Elementary School District / 498 |
| 346. | 2.6% | Hardin Elementary School District / 10,144 |
| 347. | 2.6% | Montana City Elementary School District / 2,853 |
| 348. | 2.5% | Shepherd High School District / 4,069 |
| 348. | 2.5% | Shepherd Elementary School District / 4,069 |
| 350. | 2.5% | Bonner Elementary School District / 2,581 |
| 351. | 2.5% | Lockwood Elementary School District / 8,067 |
| 352. | 2.4% | La Motte Elementary School District / 778 |
| 353. | 2.4% | Bainville K-12 Schools / 494 |
| 354. | 2.4% | Frenchtown K-12 Schools / 6,408 |
| 355. | 2.4% | Malmborg Elementary School District / 213 |
| 356. | 2.3% | Helena Flats Elementary School District / 1,780 |
| 357. | 2.3% | East Helena Elementary School District / 9,282 |
| 358. | 2.3% | Elder Grove Elementary School District / 3,410 |
| 359. | 2.2% | Knees Elementary School District / 135 |
| 359. | 2.2% | Dixon Elementary School District / 586 |
| 361. | 2.2% | Pass Creek Elementary School District / 92 |
| 362. | 2.2% | West Yellowstone K-12 School District / 2,041 |
| 363. | 2.1% | Name N/A / 2,538 |
| 364. | 2.1% | Rocky Boy High School District / 2,366 |
| 365. | 2.1% | Independent Elementary School District / 2,659 |
| 366. | 2.1% | Browning High School District / 9,318 |
| 366. | 2.1% | Lame Deer Elementary School District / 2,765 |
| 368. | 2.0% | Belgrade High School District / 20,718 |
| 368. | 2.0% | Plenty Coups High School District / 739 |
| 368. | 2.0% | Pryor Elementary School District / 739 |
| 371. | 2.0% | Cottonwood Elementary School District / 347 |
| 371. | 2.0% | Brockton High School District / 545 |
| 371. | 2.0% | Brockton Elementary School District / 545 |
| 374. | 2.0% | Kila Elementary School District / 2,090 |
| 375. | 2.0% | Browning Elementary School District / 8,635 |
| 376. | 2.0% | Belgrade Elementary School District / 20,497 |
| 376. | 2.0% | Lame Deer High School District / 5,329 |
| 378. | 2.0% | Valley View Elementary School District / 308 |
| 379. | 1.9% | West Valley Elementary School District / 3,967 |
| 380. | 1.9% | Harlem High School District / 2,569 |
| 380. | 1.9% | Harlem Elementary School District / 2,405 |
| 382. | 1.9% | Hall Elementary School District / 322 |
| 383. | 1.8% | Alder Elementary School District / 272 |
| 384. | 1.8% | Pleasant Valley Elementary School District / 219 |
| 385. | 1.8% | Liberty Elementary School District / 171 |
| 386. | 1.7% | Miami Elementary School District / 232 |
| 387. | 1.7% | Swan River Elementary School District / 1,489 |
| 388. | 1.6% | Willow Creek High School District / 315 |
| 389. | 1.6% | Rocky Boy Elementary School District / 3,598 |
| 390. | 1.5% | Ayers Elementary School District / 68 |
| 391. | 1.4% | Carter Elementary School District / 208 |
| 392. | 1.4% | Willow Creek Elementary School District / 368 |
| 393. | 1.4% | Clinton Elementary School District / 2,448 |
| 394. | 1.2% | Gardiner Elementary School District / 1,733 |
| 395. | 1.2% | Cohagen Elementary School District / 169 |
| 395. | 1.2% | Gardiner High School District / 1,776 |
| 397. | 1.1% | Colstrip High School District / 2,445 |
| 397. | 1.1% | Colstrip Elementary School District / 2,445 |
| 399. | 0.9% | Heart Butte K-12 Schools / 698 |
| 400. | 0.8% | De Smet Elementary School District / 796 |
| 401. | 0.7% | Golden Ridge Elementary School District / 139 |
| 402. | 0.6% | Lolo Elementary School District / 4,903 |
Please note that we only rank locations with 'Percentage of Population Age 75 to 84' data. The rank above might not be a complete list. Locations without 'Percentage of Population Age 75 to 84' data are not listed.
