| Rank | Percentage of Population Age 75 to 84 ▼ | School District / Population |
| 1. | 12.4% | South Stacey Elementary School District / 97 |
| 2. | 12.1% | Benton Lake Elementary School District / 83 |
| 3. | 11.0% | Opheim K-12 Schools / 338 |
| 4. | 10.7% | Warrick Elementary School District / 28 |
| 5. | 10.2% | Cottonwood Elementary School District / 108 |
| 6. | 9.8% | Wibaux K-12 Schools / 1,017 |
| 7. | 9.8% | Birney Elementary School District / 102 |
| 8. | 9.6% | Swan Valley Elementary School District / 551 |
| 9. | 9.4% | Spring Creek Colony Elementary School District / 53 |
| 10. | 9.3% | Camas Prairie Elementary School District / 172 |
| 11. | 9.2% | Ekalaka Elementary School District / 878 |
| 12. | 9.0% | Richey High School District / 487 |
| 13. | 8.9% | Plentywood K-12 Schools / 2,434 |
| 14. | 8.8% | McCormick Elementary School District / 351 |
| 15. | 8.8% | Hobson K-12 Schools / 738 |
| 15. | 8.8% | Plevna K-12 Schools / 420 |
| 17. | 8.8% | Peerless K-12 Schools / 148 |
| 18. | 8.8% | Augusta Elementary School District / 662 |
| 19. | 8.7% | Scobey K-12 Schools / 1,603 |
| 20. | 8.7% | Bloomfield Elementary School District / 104 |
| 21. | 8.6% | Richey Elementary School District / 417 |
| 22. | 8.6% | Broadus Elementary School District / 1,371 |
| 23. | 8.6% | Biddle Elementary School District / 117 |
| 24. | 8.5% | Westby K-12 Schools / 330 |
| 25. | 8.4% | Pass Creek Elementary School District / 95 |
| 26. | 8.4% | Powder River County High School District / 1,759 |
| 27. | 8.4% | Galata Elementary School District / 263 |
| 28. | 8.3% | Ayers Elementary School District / 84 |
| 29. | 8.3% | Ryegate K-12 Schools / 505 |
| 30. | 8.3% | Sheridan Elementary School District / 1,381 |
| 31. | 8.2% | Medicine Lake K-12 Schools / 620 |
| 32. | 8.2% | Carter County High School District / 1,144 |
| 33. | 8.2% | Vida Elementary School District / 417 |
| 34. | 8.1% | Van Norman Elementary School District / 74 |
| 35. | 8.0% | Fort Benton Elementary School District / 1,890 |
| 36. | 8.0% | Custer K-12 Schools / 361 |
| 37. | 8.0% | Chester-Joplin-Inverness Elementary School District / 2,190 |
| 38. | 7.9% | Swan Lake-Salmon Elementary School District / 353 |
| 39. | 7.9% | Terry K-12 Schools / 1,179 |
| 39. | 7.9% | Conrad Elementary School District / 3,385 |
| 41. | 7.9% | Upper West Shore Elementary School District / 903 |
| 42. | 7.8% | Wolf Creek Elementary School District / 612 |
| 42. | 7.8% | Geraldine Elementary School District / 625 |
| 42. | 7.8% | Pine Creek Elementary School District / 357 |
| 45. | 7.8% | Melrose Elementary School District / 115 |
| 46. | 7.8% | Denton Elementary School District / 527 |
| 47. | 7.7% | Geraldine High School District / 647 |
| 48. | 7.6% | Circle High School District / 1,734 |
| 49. | 7.6% | Kester Elementary School District / 79 |
| 50. | 7.5% | Lewistown Elementary School District / 8,626 |
| 51. | 7.5% | Forsyth High School District / 2,585 |
| 51. | 7.5% | Sheridan High School District / 1,673 |
| 53. | 7.5% | Fort Benton High School District / 2,296 |
| 54. | 7.4% | Dutton/Brady K-12 Schools / 981 |
| 54. | 7.4% | Circle Elementary School District / 1,317 |
| 54. | 7.4% | Hamilton K-12 Schools / 11,122 |
| 57. | 7.4% | Fergus High School District / 9,002 |
| 57. | 7.4% | Greenfield Elementary School District / 525 |
| 59. | 7.4% | Conrad High School District / 3,640 |
| 59. | 7.4% | Chinook Elementary School District / 1,888 |
| 61. | 7.4% | Hinsdale High School District / 446 |
| 62. | 7.4% | Belfry K-12 Schools / 610 |
| 63. | 7.4% | Forsyth Elementary School District / 2,525 |
| 64. | 7.4% | Bridger K-12 Schools / 1,304 |
| 65. | 7.4% | Chester-Joplin-Inverness High School District / 2,463 |
| 66. | 7.3% | Glasgow K-12 Schools / 4,951 |
| 67. | 7.3% | Twin Buttes Elementary School District / 82 |
| 68. | 7.3% | White Sulphur Springs Elementary School District / 1,766 |
| 69. | 7.3% | Fishtail Elementary School District / 358 |
| 70. | 7.3% | Augusta High School District / 814 |
| 71. | 7.2% | White Sulphur Springs High School District / 1,891 |
| 72. | 7.2% | Hot Springs High School District / 1,439 |
| 73. | 7.2% | Denton High School District / 585 |
| 74. | 7.2% | Chinook High School District / 2,333 |
| 75. | 7.1% | North Star Elementary School District / 966 |
| 76. | 7.1% | Hinsdale Elementary School District / 407 |
| 77. | 7.1% | Choteau Elementary School District / 2,582 |
| 78. | 7.1% | Absarokee High School District / 2,302 |
| 79. | 7.1% | Cascade Elementary School District / 1,952 |
| 80. | 7.0% | Big Sandy Elementary School District / 1,166 |
| 81. | 7.0% | Melstone Elementary School District / 484 |
| 82. | 7.0% | Paradise Elementary School District / 343 |
| 82. | 7.0% | Savage Elementary School District / 586 |
| 84. | 7.0% | Superior K-12 Schools / 2,275 |
| 85. | 7.0% | Polson High School District / 11,105 |
| 85. | 7.0% | Hot Springs Elementary School District / 1,267 |
| 87. | 6.9% | Polson Elementary School District / 9,949 |
| 87. | 6.9% | Grass Range High School District / 594 |
| 89. | 6.9% | Philipsburg K-12 Schools / 1,843 |
| 90. | 6.9% | Dodson Elementary School District / 306 |
| 90. | 6.9% | Dodson High School District / 350 |
| 92. | 6.8% | Bigfork Elementary School District / 5,747 |
| 93. | 6.8% | Landusky Elementary School District / 44 |
| 94. | 6.8% | Absarokee Elementary School District / 1,865 |
| 95. | 6.8% | Glendive Elementary School District / 6,441 |
| 96. | 6.8% | Lennep Elementary School District / 59 |
| 97. | 6.7% | Brorson Elementary School District / 178 |
| 97. | 6.7% | Froid High School District / 430 |
| 97. | 6.7% | Froid Elementary School District / 430 |
| 100. | 6.7% | Grass Range Elementary School District / 510 |
| 100. | 6.7% | Sand Springs Elementary School District / 90 |
| 102. | 6.7% | North Star High School District / 1,112 |
| 103. | 6.6% | Twin Bridges K-12 Schools / 1,491 |
| 104. | 6.6% | Choteau High School District / 3,118 |
| 105. | 6.6% | Sunset Elementary School District / 212 |
| 105. | 6.6% | Savage High School District / 606 |
| 105. | 6.6% | Lavina K-12 Schools / 379 |
| 108. | 6.6% | Highwood High School District / 455 |
| 109. | 6.6% | Miles City Elementary School District / 9,934 |
| 109. | 6.6% | Bear Paw Elementary School District / 137 |
| 111. | 6.6% | Big Timber Elementary School District / 2,697 |
| 112. | 6.5% | Rosebud High School District / 459 |
| 112. | 6.5% | Malta K-12 Schools / 3,211 |
| 114. | 6.5% | Troy High School District / 3,583 |
| 115. | 6.5% | Shawmut Elementary School District / 108 |
| 116. | 6.5% | Highwood Elementary School District / 464 |
| 117. | 6.4% | Culbertson High School District / 917 |
| 118. | 6.4% | Rosebud Elementary School District / 437 |
| 119. | 6.4% | Troy Elementary School District / 2,850 |
| 120. | 6.4% | Red Lodge Elementary School District / 3,300 |
| 120. | 6.4% | Culbertson Elementary School District / 1,022 |
| 120. | 6.4% | Custer County High School District / 11,699 |
| 120. | 6.4% | Cardwell Elementary School District / 409 |
| 124. | 6.3% | Grant Elementary School District / 142 |
| 125. | 6.3% | Harlowton High School District / 1,899 |
| 125. | 6.3% | Anaconda Elementary School District / 9,023 |
| 125. | 6.3% | Baker K-12 Schools / 2,470 |
| 128. | 6.3% | Dawson High School District / 8,479 |
| 128. | 6.3% | Harlowton Elementary School District / 1,791 |
| 130. | 6.3% | Anaconda High School District / 9,099 |
| 131. | 6.3% | Alzada Elementary School District / 159 |
| 132. | 6.3% | Drummond Elementary School District / 942 |
| 133. | 6.3% | Molt Elementary School District / 192 |
| 134. | 6.2% | Jordan Elementary School District / 661 |
| 135. | 6.2% | Wise River Elementary School District / 291 |
| 136. | 6.2% | Bigfork High School District / 7,462 |
| 137. | 6.1% | Plains High School District / 3,425 |
| 137. | 6.1% | Nye Elementary School District / 212 |
| 139. | 6.1% | Lincoln K-12 Schools / 1,274 |
| 140. | 6.1% | Red Lodge High School District / 3,828 |
| 140. | 6.1% | Springhill Elementary School District / 115 |
| 142. | 6.1% | Victor K-12 Schools / 3,486 |
| 143. | 6.1% | Sweet Grass County High School District / 3,559 |
| 144. | 6.1% | Ringling Elementary School District / 66 |
| 145. | 6.1% | Garfield County High School District / 1,206 |
| 146. | 6.0% | Plains Elementary School District / 3,082 |
| 147. | 6.0% | Stanford K-12 Schools / 818 |
| 147. | 6.0% | Thompson Falls Elementary School District / 3,556 |
| 147. | 6.0% | Thompson Falls High School District / 3,556 |
| 147. | 6.0% | Hysham K-12 Schools / 718 |
| 147. | 6.0% | Power High School District / 484 |
| 152. | 6.0% | West Glacier Elementary School District / 486 |
| 153. | 6.0% | Nashua K-12 Schools / 891 |
| 154. | 5.9% | Spring Creek Elementary School District / 101 |
| 154. | 5.9% | Turner High School District / 303 |
| 156. | 5.9% | Valley View Elementary School District / 253 |
| 157. | 5.9% | Willow Creek Elementary School District / 338 |
| 157. | 5.9% | Roy K-12 Schools / 304 |
| 159. | 5.9% | Darby K-12 Schools / 4,042 |
| 160. | 5.9% | Kircher Elementary School District / 797 |
| 161. | 5.9% | Libby K-12 Schools / 9,844 |
| 161. | 5.9% | Turner Elementary School District / 306 |
| 163. | 5.9% | Target Range Elementary School District / 3,531 |
| 164. | 5.8% | Zurich Elementary School District / 308 |
| 164. | 5.8% | Cascade High School District / 2,792 |
| 166. | 5.8% | Rapelje High School District / 343 |
| 166. | 5.8% | Saco Elementary School District / 532 |
| 166. | 5.8% | McLeod Elementary School District / 223 |
| 169. | 5.8% | Bynum Elementary School District / 224 |
| 170. | 5.8% | Townsend K-12 Schools / 5,046 |
| 171. | 5.8% | Harrison K-12 Schools / 658 |
| 172. | 5.8% | Pine Grove Elementary School District / 87 |
| 173. | 5.7% | Joliet Elementary School District / 2,039 |
| 174. | 5.7% | Belt High School District / 2,008 |
| 175. | 5.7% | Cut Bank Elementary School District / 4,406 |
| 176. | 5.7% | Lambert Elementary School District / 385 |
| 177. | 5.7% | Drummond High School District / 1,236 |
| 178. | 5.7% | Yaak Elementary School District / 248 |
| 178. | 5.7% | Stevensville Elementary School District / 6,625 |
| 180. | 5.6% | Ennis K-12 Schools / 3,482 |
| 181. | 5.6% | Geyser Elementary School District / 340 |
| 182. | 5.6% | Cut Bank High School District / 4,530 |
| 183. | 5.6% | Fromberg K-12 Schools / 1,060 |
| 183. | 5.6% | Sun River Valley Elementary School District / 2,120 |
| 185. | 5.6% | Divide Elementary School District / 180 |
| 185. | 5.6% | Fair-Mont-Egan Elementary School District / 1,133 |
| 187. | 5.5% | Fairfield Elementary School District / 1,245 |
| 188. | 5.5% | Ovando Elementary School District / 253 |
| 188. | 5.5% | Fairfield High School District / 1,900 |
| 190. | 5.5% | Saco High School District / 493 |
| 191. | 5.4% | Rapelje Elementary School District / 240 |
| 192. | 5.4% | Belt Elementary School District / 2,106 |
| 192. | 5.4% | Joliet High School District / 2,386 |
| 194. | 5.4% | Valier Elementary School District / 981 |
| 195. | 5.4% | Winifred K-12 Schools / 540 |
| 196. | 5.4% | Judith Gap Elementary School District / 336 |
| 196. | 5.4% | Judith Gap High School District / 336 |
| 198. | 5.4% | Roundup High School District / 4,246 |
| 199. | 5.3% | Springdale Elementary School District / 131 |
| 200. | 5.3% | Kalispell Elementary School District / 27,692 |
| 201. | 5.3% | Dillon Elementary School District / 7,757 |
| 201. | 5.3% | Whitehall High School District / 3,913 |
| 203. | 5.3% | Broadview High School District / 927 |
| 204. | 5.3% | Shields Valley Elementary School District / 1,628 |
| 204. | 5.3% | Shields Valley High School District / 1,628 |
| 204. | 5.3% | Beaverhead County High School District / 8,738 |
| 207. | 5.3% | Deep Creek Elementary School District / 114 |
| 208. | 5.3% | Broadview Elementary School District / 838 |
| 209. | 5.2% | Sidney Elementary School District / 6,817 |
| 210. | 5.2% | Butte Elementary School District / 32,592 |
| 210. | 5.2% | Roundup Elementary School District / 4,109 |
| 210. | 5.2% | Sidney High School District / 7,392 |
| 210. | 5.2% | Great Falls Elementary School District / 72,018 |
| 214. | 5.2% | Park High School District / 12,795 |
| 214. | 5.2% | Amsterdam Elementary School District / 1,808 |
| 214. | 5.2% | Great Falls High School District / 72,159 |
| 217. | 5.2% | Livingston Elementary School District / 10,406 |
| 218. | 5.2% | Simms High School District / 3,030 |
| 218. | 5.2% | Polaris Elementary School District / 97 |
| 220. | 5.1% | Butte High School District / 34,152 |
| 221. | 5.1% | Lima K-12 Schools / 508 |
| 222. | 5.1% | Whitehall Elementary School District / 3,443 |
| 223. | 5.1% | Billings Elementary School District / 107,977 |
| 224. | 5.1% | Luther Elementary School District / 395 |
| 225. | 5.0% | Valier High School District / 1,355 |
| 226. | 5.0% | Seeley Lake Elementary School District / 2,054 |
| 227. | 5.0% | Manhattan High School District / 4,564 |
| 227. | 5.0% | Three Forks High School District / 3,480 |
| 229. | 5.0% | Three Forks Elementary School District / 3,509 |
| 229. | 5.0% | Trout Creek Elementary School District / 1,130 |
| 231. | 5.0% | Stevensville High School District / 9,662 |
| 231. | 5.0% | Laurel High School District / 10,696 |
| 233. | 4.9% | Fortine Elementary School District / 770 |
| 234. | 4.9% | Trego Elementary School District / 588 |
| 235. | 4.9% | Lambert High School District / 347 |
| 235. | 4.9% | Cohagen Elementary School District / 102 |
| 235. | 4.9% | Laurel Elementary School District / 11,043 |
| 238. | 4.9% | Havre Elementary School District / 12,252 |
| 238. | 4.9% | Lincoln County High School District / 6,260 |
| 240. | 4.9% | Eureka Elementary School District / 4,902 |
| 240. | 4.9% | Melstone High School District / 287 |
| 242. | 4.9% | Winnett K-12 Schools / 494 |
| 243. | 4.9% | Power Elementary School District / 454 |
| 244. | 4.8% | Havre High School District / 12,655 |
| 245. | 4.8% | Deer Lodge Elementary School District / 5,818 |
| 245. | 4.8% | Corvallis K-12 Schools / 7,645 |
| 245. | 4.8% | Deer Creek Elementary School District / 1,684 |
| 248. | 4.8% | Arrowhead Elementary School District / 1,909 |
| 248. | 4.8% | Manhattan Elementary School District / 2,703 |
| 250. | 4.7% | Willow Creek High School District / 275 |
| 251. | 4.7% | Somers Elementary School District / 6,311 |
| 251. | 4.7% | Garrison Elementary School District / 128 |
| 253. | 4.7% | Billings High School District / 127,987 |
| 254. | 4.7% | Noxon High School District / 2,551 |
| 255. | 4.7% | Powell County High School District / 7,226 |
| 256. | 4.6% | King Colony Elementary School District / 323 |
| 257. | 4.6% | Greycliff Elementary School District / 348 |
| 257. | 4.6% | Pioneer Elementary School District / 913 |
| 259. | 4.6% | Geyser High School District / 482 |
| 260. | 4.6% | Sunburst K-12 Schools / 1,232 |
| 261. | 4.5% | Columbus Elementary School District / 3,625 |
| 261. | 4.5% | Whitewater K-12 Schools / 199 |
| 261. | 4.5% | Huntley Project K-12 Schools / 4,244 |
| 264. | 4.5% | Charlo Elementary School District / 1,332 |
| 265. | 4.5% | Centerville Elementary School District / 1,381 |
| 266. | 4.5% | Reedpoint Elementary School District / 648 |
| 266. | 4.5% | Sylvanite Elementary School District / 134 |
| 268. | 4.5% | Flathead High School District / 57,390 |
| 269. | 4.5% | Alberton K-12 Schools / 1,371 |
| 270. | 4.4% | Noxon Elementary School District / 1,421 |
| 271. | 4.4% | Columbus High School District / 3,825 |
| 271. | 4.4% | Frontier Elementary School District / 430 |
| 273. | 4.4% | St. Ignatius K-12 Schools / 3,276 |
| 274. | 4.4% | Fairview High School District / 1,401 |
| 275. | 4.3% | Columbia Falls High School District / 14,817 |
| 276. | 4.3% | Reedpoint High School District / 584 |
| 277. | 4.3% | Columbia Falls Elementary School District / 14,331 |
| 277. | 4.3% | Centerville High School District / 1,338 |
| 279. | 4.2% | Charlo High School District / 1,792 |
| 279. | 4.2% | Fairview Elementary School District / 1,321 |
| 281. | 4.2% | Vaughn Elementary School District / 910 |
| 282. | 4.2% | Carter Elementary School District / 168 |
| 283. | 4.2% | Shelby High School District / 4,092 |
| 283. | 4.2% | Creston Elementary School District / 1,180 |
| 285. | 4.1% | Cayuse Prairie Elementary School District / 2,440 |
| 285. | 4.1% | Lindsay Elementary School District / 338 |
| 287. | 4.1% | Elliston Elementary School District / 339 |
| 288. | 4.1% | Cooke City Elementary School District / 97 |
| 288. | 4.1% | Bainville K-12 Schools / 364 |
| 290. | 4.1% | S Y Elementary School District / 73 |
| 291. | 4.1% | Bonner Elementary School District / 2,566 |
| 291. | 4.1% | St. Regis K-12 Schools / 1,247 |
| 293. | 4.0% | Helena Elementary School District / 50,423 |
| 294. | 4.0% | Dupuyer Elementary School District / 374 |
| 295. | 4.0% | Deer Park Elementary School District / 1,000 |
| 296. | 4.0% | Park City High School District / 2,082 |
| 297. | 4.0% | Moore High School District / 528 |
| 297. | 4.0% | Big Sandy High School District / 2,415 |
| 297. | 4.0% | Moore Elementary School District / 528 |
| 300. | 3.9% | Reichle Elementary School District / 127 |
| 301. | 3.9% | Roberts K-12 Schools / 890 |
| 301. | 3.9% | Helena High School District / 61,307 |
| 303. | 3.9% | Evergreen Elementary School District / 6,002 |
| 304. | 3.9% | Cottonwood Elementary School District / 358 |
| 305. | 3.9% | Boulder Elementary School District / 2,000 |
| 306. | 3.9% | Shelby Elementary School District / 3,829 |
| 307. | 3.9% | Park City Elementary School District / 2,282 |
| 308. | 3.9% | Clancy Elementary School District / 2,730 |
| 309. | 3.8% | Ronan Elementary School District / 8,645 |
| 309. | 3.8% | Anderson Elementary School District / 1,154 |
| 309. | 3.8% | Ronan High School District / 8,645 |
| 312. | 3.8% | Hellgate Elementary School District / 12,805 |
| 313. | 3.8% | Alder Elementary School District / 292 |
| 314. | 3.8% | Canyon Creek Elementary School District / 1,921 |
| 315. | 3.7% | Hall Elementary School District / 294 |
| 315. | 3.7% | Whitefish Elementary School District / 12,979 |
| 317. | 3.7% | Cleveland Elementary School District / 81 |
| 318. | 3.7% | Wolf Point High School District / 4,635 |
| 319. | 3.7% | Helmville Elementary School District / 218 |
| 320. | 3.7% | Whitefish High School District / 13,656 |
| 321. | 3.6% | Kinsey Elementary School District / 496 |
| 321. | 3.6% | Wisdom Elementary School District / 248 |
| 323. | 3.6% | Wolf Point Elementary School District / 4,205 |
| 324. | 3.5% | Potomac Elementary School District / 1,075 |
| 325. | 3.5% | Missoula High School District / 100,417 |
| 326. | 3.5% | Dixon Elementary School District / 460 |
| 327. | 3.5% | Gallatin Gateway Elementary School District / 1,565 |
| 328. | 3.4% | Lone Rock Elementary School District / 3,037 |
| 329. | 3.4% | Elysian Elementary School District / 1,084 |
| 330. | 3.4% | Hardin High School District / 8,178 |
| 331. | 3.4% | Avon Elementary School District / 239 |
| 332. | 3.3% | Florence-Carlton K-12 Schools / 5,328 |
| 333. | 3.3% | Woodman Elementary School District / 451 |
| 334. | 3.3% | Missoula Elementary School District / 68,646 |
| 335. | 3.3% | Wyola Elementary School District / 455 |
| 336. | 3.3% | Jackson Elementary School District / 152 |
| 337. | 3.3% | Harlem Elementary School District / 2,405 |
| 338. | 3.3% | East Helena Elementary School District / 8,680 |
| 339. | 3.2% | Harlem High School District / 2,533 |
| 340. | 3.2% | Morin Elementary School District / 403 |
| 340. | 3.2% | Davey Elementary School District / 62 |
| 342. | 3.2% | Swan River Elementary School District / 1,551 |
| 343. | 3.2% | Pendroy Elementary School District / 312 |
| 343. | 3.2% | Hardin Elementary School District / 9,478 |
| 345. | 3.2% | S H Elementary School District / 157 |
| 346. | 3.2% | Helena Flats Elementary School District / 1,844 |
| 347. | 3.1% | Jefferson High School District / 7,928 |
| 348. | 3.1% | Spring Creek Elementary School District / 64 |
| 349. | 3.1% | East Glacier Park Elementary School District / 549 |
| 349. | 3.1% | Clinton Elementary School District / 2,354 |
| 351. | 3.1% | Gardiner High School District / 1,457 |
| 352. | 3.0% | Marion Elementary School District / 1,547 |
| 353. | 3.0% | Gardiner Elementary School District / 1,360 |
| 354. | 3.0% | Cottonwood Elementary School District / 233 |
| 355. | 3.0% | Monforton Elementary School District / 2,039 |
| 356. | 3.0% | Rau Elementary School District / 336 |
| 357. | 3.0% | Arlee Elementary School District / 2,530 |
| 357. | 3.0% | Arlee High School District / 2,530 |
| 359. | 3.0% | Trinity Elementary School District / 1,592 |
| 360. | 2.9% | Ramsay Elementary School District / 1,265 |
| 361. | 2.9% | Bozeman Elementary School District / 51,460 |
| 362. | 2.9% | Bozeman High School District / 59,653 |
| 363. | 2.8% | Hawks Home Elementary School District / 107 |
| 363. | 2.8% | Hays-Lodge Pole K-12 Schools / 1,322 |
| 365. | 2.7% | Melville Elementary School District / 219 |
| 366. | 2.7% | West Valley Elementary School District / 3,770 |
| 367. | 2.7% | Blue Creek Elementary School District / 2,111 |
| 368. | 2.6% | Ulm Elementary School District / 726 |
| 369. | 2.6% | Gold Creek Elementary School District / 231 |
| 370. | 2.6% | Olney-Bissell Elementary School District / 1,158 |
| 371. | 2.6% | Frazer Elementary School District / 544 |
| 372. | 2.6% | Whitlash Elementary School District / 39 |
| 372. | 2.6% | Liberty Elementary School District / 234 |
| 374. | 2.5% | Smith Valley Elementary School District / 1,902 |
| 375. | 2.5% | Lodge Grass High School District / 2,229 |
| 376. | 2.5% | Golden Ridge Elementary School District / 160 |
| 377. | 2.5% | Frenchtown K-12 Schools / 6,582 |
| 378. | 2.5% | Shepherd Elementary School District / 3,881 |
| 378. | 2.5% | Shepherd High School District / 3,881 |
| 380. | 2.5% | Plenty Coups High School District / 732 |
| 380. | 2.5% | Pryor Elementary School District / 732 |
| 382. | 2.4% | Lolo Elementary School District / 5,126 |
| 383. | 2.3% | Lodge Grass Elementary School District / 1,774 |
| 384. | 2.3% | Lockwood Elementary School District / 7,865 |
| 385. | 2.2% | Rocky Boy High School District / 1,784 |
| 386. | 2.2% | Browning High School District / 8,869 |
| 387. | 2.2% | Elder Grove Elementary School District / 3,014 |
| 388. | 2.2% | Browning Elementary School District / 8,320 |
| 389. | 2.2% | West Yellowstone K-12 School District / 1,769 |
| 390. | 2.1% | Poplar Elementary School District / 3,523 |
| 390. | 2.1% | Poplar High School District / 3,523 |
| 392. | 2.1% | Raynesford Elementary School District / 142 |
| 393. | 2.1% | Montana City Elementary School District / 2,963 |
| 394. | 2.0% | Frazer High School District / 743 |
| 395. | 2.0% | De Smet Elementary School District / 857 |
| 396. | 2.0% | Ashland Elementary School District / 1,275 |
| 397. | 2.0% | Ophir Elementary School District / 2,153 |
| 398. | 1.9% | Malmborg Elementary School District / 206 |
| 399. | 1.9% | Box Elder High School District / 421 |
| 399. | 1.9% | Box Elder Elementary School District / 421 |
| 401. | 1.9% | Belgrade High School District / 20,094 |
| 402. | 1.9% | Independent Elementary School District / 2,624 |
| 403. | 1.9% | Belgrade Elementary School District / 19,906 |
| 404. | 1.8% | Kila Elementary School District / 1,924 |
| 405. | 1.8% | Brockton High School District / 556 |
| 405. | 1.8% | Brockton Elementary School District / 556 |
| 407. | 1.8% | Knees Elementary School District / 168 |
| 408. | 1.8% | La Motte Elementary School District / 843 |
| 409. | 1.8% | Big Dry Creek Elementary School District / 57 |
| 410. | 1.7% | Heart Butte K-12 Schools / 748 |
| 411. | 1.7% | Deerfield Elementary School District / 58 |
| 412. | 1.7% | Lame Deer High School District / 5,376 |
| 413. | 1.7% | Basin Elementary School District / 235 |
| 413. | 1.7% | Rocky Boy Elementary School District / 3,005 |
| 415. | 1.6% | Gildford Colony Elementary School District / 129 |
| 416. | 1.3% | Lame Deer Elementary School District / 2,771 |
| 417. | 1.3% | Colstrip Elementary School District / 2,493 |
| 417. | 1.3% | Colstrip High School District / 2,493 |
| 419. | 1.2% | Miami Elementary School District / 255 |
| 420. | 0.8% | Mountain View Elementary School District / 124 |
| 421. | 0.7% | Auchard Creek Elementary School District / 152 |
| 422. | 0.5% | Lustre Elementary School District / 199 |
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.
