| Rank | Average Family Size ▼ | School District / Population |
| 1. | 4.56 | Lame Deer Elementary School District / 2,771 |
| 2. | 4.52 | Heart Butte K-12 Schools / 748 |
| 3. | 4.38 | Liberty Elementary School District / 234 |
| 4. | 4.30 | North Harlem Colony Elementary School District / 44 |
| 5. | 4.21 | Pryor Elementary School District / 732 |
| 5. | 4.21 | Plenty Coups High School District / 732 |
| 7. | 4.20 | Lodge Grass Elementary School District / 1,774 |
| 8. | 4.18 | Rocky Boy High School District / 1,784 |
| 8. | 4.18 | Lame Deer High School District / 5,376 |
| 10. | 4.17 | Rocky Boy Elementary School District / 3,005 |
| 11. | 4.14 | Lodge Grass High School District / 2,229 |
| 12. | 3.92 | Brockton Elementary School District / 556 |
| 12. | 3.92 | Wyola Elementary School District / 455 |
| 12. | 3.92 | Brockton High School District / 556 |
| 15. | 3.88 | Gildford Colony Elementary School District / 129 |
| 16. | 3.78 | Browning Elementary School District / 8,320 |
| 17. | 3.76 | Frazer Elementary School District / 544 |
| 18. | 3.75 | Browning High School District / 8,869 |
| 18. | 3.75 | Hays-Lodge Pole K-12 Schools / 1,322 |
| 20. | 3.68 | Poplar Elementary School District / 3,523 |
| 20. | 3.68 | Poplar High School District / 3,523 |
| 22. | 3.63 | Hardin Elementary School District / 9,478 |
| 23. | 3.60 | Frazer High School District / 743 |
| 23. | 3.60 | Ashland Elementary School District / 1,275 |
| 23. | 3.60 | Yellowstone Academy Elementary School District / 75 |
| 26. | 3.58 | Box Elder High School District / 421 |
| 26. | 3.58 | Box Elder Elementary School District / 421 |
| 28. | 3.57 | Hardin High School District / 8,178 |
| 29. | 3.55 | Miami Elementary School District / 255 |
| 30. | 3.51 | Morin Elementary School District / 403 |
| 31. | 3.49 | Harlem Elementary School District / 2,405 |
| 32. | 3.48 | Harlem High School District / 2,533 |
| 32. | 3.48 | Gold Creek Elementary School District / 231 |
| 34. | 3.45 | Ayers Elementary School District / 84 |
| 35. | 3.43 | Big Sandy High School District / 2,415 |
| 36. | 3.40 | Wolf Point Elementary School District / 4,205 |
| 37. | 3.37 | Wolf Point High School District / 4,635 |
| 38. | 3.33 | Whitlash Elementary School District / 39 |
| 38. | 3.33 | Ross Elementary School District / 25 |
| 40. | 3.32 | East Glacier Park Elementary School District / 549 |
| 41. | 3.26 | Molt Elementary School District / 192 |
| 41. | 3.26 | Camas Prairie Elementary School District / 172 |
| 43. | 3.22 | De Smet Elementary School District / 857 |
| 44. | 3.20 | West Valley Elementary School District / 3,770 |
| 45. | 3.19 | Kester Elementary School District / 79 |
| 45. | 3.19 | Lustre Elementary School District / 199 |
| 47. | 3.18 | Raynesford Elementary School District / 142 |
| 48. | 3.17 | Dixon Elementary School District / 460 |
| 48. | 3.17 | Pass Creek Elementary School District / 95 |
| 48. | 3.17 | Ronan Elementary School District / 8,645 |
| 48. | 3.17 | Ronan High School District / 8,645 |
| 52. | 3.16 | Jackson Elementary School District / 152 |
| 53. | 3.15 | Broadview High School District / 927 |
| 54. | 3.14 | Malmborg Elementary School District / 206 |
| 55. | 3.13 | Independent Elementary School District / 2,624 |
| 56. | 3.12 | Arlee Elementary School District / 2,530 |
| 56. | 3.12 | Arlee High School District / 2,530 |
| 58. | 3.11 | Charlo High School District / 1,792 |
| 58. | 3.11 | Smith Valley Elementary School District / 1,902 |
| 60. | 3.09 | St. Ignatius K-12 Schools / 3,276 |
| 60. | 3.09 | Charlo Elementary School District / 1,332 |
| 62. | 3.08 | Amsterdam Elementary School District / 1,808 |
| 62. | 3.08 | Montana City Elementary School District / 2,963 |
| 62. | 3.08 | Frenchtown K-12 Schools / 6,582 |
| 65. | 3.07 | Belgrade Elementary School District / 19,906 |
| 65. | 3.07 | Frontier Elementary School District / 430 |
| 65. | 3.07 | Corvallis K-12 Schools / 7,645 |
| 65. | 3.07 | Rau Elementary School District / 336 |
| 65. | 3.07 | Lockwood Elementary School District / 7,865 |
| 65. | 3.07 | Broadview Elementary School District / 838 |
| 71. | 3.06 | Lolo Elementary School District / 5,126 |
| 71. | 3.06 | Helena Flats Elementary School District / 1,844 |
| 71. | 3.06 | Belgrade High School District / 20,094 |
| 74. | 3.05 | Colstrip Elementary School District / 2,493 |
| 74. | 3.05 | Colstrip High School District / 2,493 |
| 76. | 3.04 | Kinsey Elementary School District / 496 |
| 76. | 3.04 | Elder Grove Elementary School District / 3,014 |
| 76. | 3.04 | Melstone High School District / 287 |
| 76. | 3.04 | Evergreen Elementary School District / 6,002 |
| 76. | 3.04 | Pine Grove Elementary School District / 87 |
| 81. | 3.03 | Sunburst K-12 Schools / 1,232 |
| 81. | 3.03 | Grant Elementary School District / 142 |
| 83. | 3.02 | Fair-Mont-Egan Elementary School District / 1,133 |
| 83. | 3.02 | Laurel Elementary School District / 11,043 |
| 83. | 3.02 | Shepherd High School District / 3,881 |
| 83. | 3.02 | Shepherd Elementary School District / 3,881 |
| 83. | 3.02 | Cut Bank Elementary School District / 4,406 |
| 83. | 3.02 | Cut Bank High School District / 4,530 |
| 83. | 3.02 | Laurel High School District / 10,696 |
| 83. | 3.02 | Rapelje Elementary School District / 240 |
| 83. | 3.02 | Melville Elementary School District / 219 |
| 92. | 3.01 | Harlowton Elementary School District / 1,791 |
| 93. | 3.00 | Harlowton High School District / 1,899 |
| 93. | 3.00 | Manhattan High School District / 4,564 |
| 93. | 3.00 | S Y Elementary School District / 73 |
| 96. | 2.99 | Chester-Joplin-Inverness High School District / 2,463 |
| 96. | 2.99 | Anderson Elementary School District / 1,154 |
| 98. | 2.98 | Bainville K-12 Schools / 364 |
| 98. | 2.98 | Cottonwood Elementary School District / 233 |
| 98. | 2.98 | Pioneer Elementary School District / 913 |
| 101. | 2.97 | Valley View Elementary School District / 253 |
| 101. | 2.97 | Havre High School District / 12,655 |
| 101. | 2.97 | Havre Elementary School District / 12,252 |
| 101. | 2.97 | Avon Elementary School District / 239 |
| 105. | 2.96 | Saco High School District / 493 |
| 105. | 2.96 | Flathead High School District / 57,390 |
| 105. | 2.96 | Sand Springs Elementary School District / 90 |
| 105. | 2.96 | East Helena Elementary School District / 8,680 |
| 105. | 2.96 | Brorson Elementary School District / 178 |
| 105. | 2.96 | Park City High School District / 2,082 |
| 105. | 2.96 | Manhattan Elementary School District / 2,703 |
| 105. | 2.96 | Highwood Elementary School District / 464 |
| 105. | 2.96 | Kila Elementary School District / 1,924 |
| 105. | 2.96 | Highwood High School District / 455 |
| 105. | 2.96 | Hellgate Elementary School District / 12,805 |
| 105. | 2.96 | Rapelje High School District / 343 |
| 117. | 2.95 | Jefferson High School District / 7,928 |
| 117. | 2.95 | Three Forks Elementary School District / 3,509 |
| 117. | 2.95 | Judith Gap High School District / 336 |
| 117. | 2.95 | Fairfield Elementary School District / 1,245 |
| 117. | 2.95 | Lambert High School District / 347 |
| 117. | 2.95 | Three Forks High School District / 3,480 |
| 117. | 2.95 | Park City Elementary School District / 2,282 |
| 117. | 2.95 | Fairview Elementary School District / 1,321 |
| 117. | 2.95 | Judith Gap Elementary School District / 336 |
| 126. | 2.94 | Geyser High School District / 482 |
| 126. | 2.94 | Blue Creek Elementary School District / 2,111 |
| 126. | 2.94 | Deep Creek Elementary School District / 114 |
| 126. | 2.94 | Fairview High School District / 1,401 |
| 126. | 2.94 | Cayuse Prairie Elementary School District / 2,440 |
| 131. | 2.93 | Power Elementary School District / 454 |
| 131. | 2.93 | Zurich Elementary School District / 308 |
| 131. | 2.93 | Billings High School District / 127,987 |
| 131. | 2.93 | Lambert Elementary School District / 385 |
| 131. | 2.93 | Hinsdale Elementary School District / 407 |
| 131. | 2.93 | Cottonwood Elementary School District / 358 |
| 131. | 2.93 | Greycliff Elementary School District / 348 |
| 131. | 2.93 | Valier Elementary School District / 981 |
| 131. | 2.93 | Spring Creek Elementary School District / 101 |
| 131. | 2.93 | Columbia Falls Elementary School District / 14,331 |
| 141. | 2.92 | Fairfield High School District / 1,900 |
| 141. | 2.92 | Power High School District / 484 |
| 141. | 2.92 | Moore High School District / 528 |
| 141. | 2.92 | Cardwell Elementary School District / 409 |
| 141. | 2.92 | Moore Elementary School District / 528 |
| 141. | 2.92 | Columbia Falls High School District / 14,817 |
| 141. | 2.92 | Somers Elementary School District / 6,311 |
| 141. | 2.92 | Clinton Elementary School District / 2,354 |
| 141. | 2.92 | Kalispell Elementary School District / 27,692 |
| 150. | 2.91 | Deer Park Elementary School District / 1,000 |
| 150. | 2.91 | Lone Rock Elementary School District / 3,037 |
| 150. | 2.91 | Saco Elementary School District / 532 |
| 150. | 2.91 | Huntley Project K-12 Schools / 4,244 |
| 150. | 2.91 | Great Falls Elementary School District / 72,018 |
| 150. | 2.91 | Chester-Joplin-Inverness Elementary School District / 2,190 |
| 150. | 2.91 | Billings Elementary School District / 107,977 |
| 150. | 2.91 | Great Falls High School District / 72,159 |
| 150. | 2.91 | Benton Lake Elementary School District / 83 |
| 150. | 2.91 | Greenfield Elementary School District / 525 |
| 160. | 2.90 | Basin Elementary School District / 235 |
| 160. | 2.90 | Sun River Valley Elementary School District / 2,120 |
| 160. | 2.90 | Ulm Elementary School District / 726 |
| 160. | 2.90 | Culbertson High School District / 917 |
| 160. | 2.90 | South Stacey Elementary School District / 97 |
| 160. | 2.90 | Canyon Creek Elementary School District / 1,921 |
| 160. | 2.90 | Ramsay Elementary School District / 1,265 |
| 160. | 2.90 | Cleveland Elementary School District / 81 |
| 160. | 2.90 | Luther Elementary School District / 395 |
| 160. | 2.90 | Boulder Elementary School District / 2,000 |
| 160. | 2.90 | Florence-Carlton K-12 Schools / 5,328 |
| 171. | 2.89 | Hall Elementary School District / 294 |
| 171. | 2.89 | North Star High School District / 1,112 |
| 171. | 2.89 | Centerville Elementary School District / 1,381 |
| 171. | 2.89 | Columbus Elementary School District / 3,625 |
| 171. | 2.89 | Centerville High School District / 1,338 |
| 171. | 2.89 | Culbertson Elementary School District / 1,022 |
| 171. | 2.89 | Kircher Elementary School District / 797 |
| 178. | 2.88 | Rosebud Elementary School District / 437 |
| 178. | 2.88 | Miles City Elementary School District / 9,934 |
| 178. | 2.88 | Hawks Home Elementary School District / 107 |
| 178. | 2.88 | Chinook High School District / 2,333 |
| 178. | 2.88 | Spring Creek Elementary School District / 64 |
| 178. | 2.88 | Simms High School District / 3,030 |
| 178. | 2.88 | Savage High School District / 606 |
| 178. | 2.88 | Hinsdale High School District / 446 |
| 178. | 2.88 | Columbus High School District / 3,825 |
| 178. | 2.88 | Turner Elementary School District / 306 |
| 178. | 2.88 | Helena Elementary School District / 50,423 |
| 178. | 2.88 | Turner High School District / 303 |
| 178. | 2.88 | Chinook Elementary School District / 1,888 |
| 178. | 2.88 | Baker K-12 Schools / 2,470 |
| 178. | 2.88 | Custer County High School District / 11,699 |
| 178. | 2.88 | Helena High School District / 61,307 |
| 178. | 2.88 | Creston Elementary School District / 1,180 |
| 178. | 2.88 | Plevna K-12 Schools / 420 |
| 196. | 2.87 | Valier High School District / 1,355 |
| 196. | 2.87 | Hot Springs High School District / 1,439 |
| 196. | 2.87 | Butte Elementary School District / 32,592 |
| 196. | 2.87 | Butte High School District / 34,152 |
| 196. | 2.87 | Bonner Elementary School District / 2,566 |
| 196. | 2.87 | Dodson Elementary School District / 306 |
| 202. | 2.86 | Sidney High School District / 7,392 |
| 202. | 2.86 | Willow Creek High School District / 275 |
| 202. | 2.86 | Marion Elementary School District / 1,547 |
| 202. | 2.86 | Lavina K-12 Schools / 379 |
| 202. | 2.86 | Garfield County High School District / 1,206 |
| 202. | 2.86 | Missoula High School District / 100,417 |
| 202. | 2.86 | Big Sandy Elementary School District / 1,166 |
| 202. | 2.86 | Target Range Elementary School District / 3,531 |
| 202. | 2.86 | Savage Elementary School District / 586 |
| 202. | 2.86 | Lindsay Elementary School District / 338 |
| 212. | 2.85 | Elysian Elementary School District / 1,084 |
| 212. | 2.85 | Deer Creek Elementary School District / 1,684 |
| 212. | 2.85 | Trail Creek Elementary School District / 42 |
| 212. | 2.85 | Jordan Elementary School District / 661 |
| 212. | 2.85 | Froid Elementary School District / 430 |
| 212. | 2.85 | Sidney Elementary School District / 6,817 |
| 212. | 2.85 | Rosebud High School District / 459 |
| 212. | 2.85 | Geraldine Elementary School District / 625 |
| 212. | 2.85 | Malta K-12 Schools / 3,211 |
| 212. | 2.85 | Froid High School District / 430 |
| 212. | 2.85 | Conrad High School District / 3,640 |
| 212. | 2.85 | Geyser Elementary School District / 340 |
| 224. | 2.84 | Geraldine High School District / 647 |
| 224. | 2.84 | Glasgow K-12 Schools / 4,951 |
| 224. | 2.84 | Clancy Elementary School District / 2,730 |
| 224. | 2.84 | Whitewater K-12 Schools / 199 |
| 224. | 2.84 | Polson High School District / 11,105 |
| 224. | 2.84 | Shelby Elementary School District / 3,829 |
| 224. | 2.84 | Gallatin Gateway Elementary School District / 1,565 |
| 224. | 2.84 | Vaughn Elementary School District / 910 |
| 224. | 2.84 | Polson Elementary School District / 9,949 |
| 224. | 2.84 | Joliet High School District / 2,386 |
| 224. | 2.84 | North Star Elementary School District / 966 |
| 224. | 2.84 | Stevensville High School District / 9,662 |
| 236. | 2.83 | Circle Elementary School District / 1,317 |
| 236. | 2.83 | Bozeman Elementary School District / 51,460 |
| 236. | 2.83 | Roberts K-12 Schools / 890 |
| 236. | 2.83 | Glendive Elementary School District / 6,441 |
| 236. | 2.83 | Shelby High School District / 4,092 |
| 236. | 2.83 | Bozeman High School District / 59,653 |
| 236. | 2.83 | Winifred K-12 Schools / 540 |
| 236. | 2.83 | Dawson High School District / 8,479 |
| 236. | 2.83 | Lima K-12 Schools / 508 |
| 236. | 2.83 | Winnett K-12 Schools / 494 |
| 236. | 2.83 | Monforton Elementary School District / 2,039 |
| 247. | 2.82 | Conrad Elementary School District / 3,385 |
| 247. | 2.82 | Sweet Grass County High School District / 3,559 |
| 247. | 2.82 | Townsend K-12 Schools / 5,046 |
| 247. | 2.82 | Joliet Elementary School District / 2,039 |
| 247. | 2.82 | Hot Springs Elementary School District / 1,267 |
| 247. | 2.82 | Missoula Elementary School District / 68,646 |
| 253. | 2.81 | Scobey K-12 Schools / 1,603 |
| 253. | 2.81 | Whitehall High School District / 3,913 |
| 253. | 2.81 | Stevensville Elementary School District / 6,625 |
| 253. | 2.81 | Whitehall Elementary School District / 3,443 |
| 253. | 2.81 | Eureka Elementary School District / 4,902 |
| 253. | 2.81 | Dodson High School District / 350 |
| 253. | 2.81 | Livingston Elementary School District / 10,406 |
| 253. | 2.81 | Fromberg K-12 Schools / 1,060 |
| 261. | 2.80 | La Motte Elementary School District / 843 |
| 261. | 2.80 | Olney-Bissell Elementary School District / 1,158 |
| 261. | 2.80 | Dillon Elementary School District / 7,757 |
| 261. | 2.80 | Big Timber Elementary School District / 2,697 |
| 261. | 2.80 | Westby K-12 Schools / 330 |
| 261. | 2.80 | Wibaux K-12 Schools / 1,017 |
| 261. | 2.80 | Carter Elementary School District / 168 |
| 261. | 2.80 | Twin Bridges K-12 Schools / 1,491 |
| 269. | 2.79 | Belt Elementary School District / 2,106 |
| 269. | 2.79 | Melstone Elementary School District / 484 |
| 269. | 2.79 | Beaverhead County High School District / 8,738 |
| 269. | 2.79 | Deer Lodge Elementary School District / 5,818 |
| 269. | 2.79 | Belt High School District / 2,008 |
| 269. | 2.79 | Big Dry Creek Elementary School District / 57 |
| 269. | 2.79 | Trinity Elementary School District / 1,592 |
| 269. | 2.79 | Powell County High School District / 7,226 |
| 277. | 2.78 | Lincoln County High School District / 6,260 |
| 277. | 2.78 | Potomac Elementary School District / 1,075 |
| 277. | 2.78 | Plains High School District / 3,425 |
| 277. | 2.78 | Birney Elementary School District / 102 |
| 277. | 2.78 | Swan River Elementary School District / 1,551 |
| 277. | 2.78 | Choteau Elementary School District / 2,582 |
| 277. | 2.78 | Whitefish Elementary School District / 12,979 |
| 277. | 2.78 | Paradise Elementary School District / 343 |
| 277. | 2.78 | Denton Elementary School District / 527 |
| 277. | 2.78 | Plains Elementary School District / 3,082 |
| 277. | 2.78 | Harrison K-12 Schools / 658 |
| 277. | 2.78 | Roundup Elementary School District / 4,109 |
| 277. | 2.78 | Reichle Elementary School District / 127 |
| 290. | 2.77 | Shawmut Elementary School District / 108 |
| 290. | 2.77 | Forsyth Elementary School District / 2,525 |
| 290. | 2.77 | Bridger K-12 Schools / 1,304 |
| 290. | 2.77 | Circle High School District / 1,734 |
| 290. | 2.77 | Forsyth High School District / 2,585 |
| 290. | 2.77 | Biddle Elementary School District / 117 |
| 290. | 2.77 | Whitefish High School District / 13,656 |
| 297. | 2.76 | Willow Creek Elementary School District / 338 |
| 297. | 2.76 | Park High School District / 12,795 |
| 297. | 2.76 | Roy K-12 Schools / 304 |
| 297. | 2.76 | Choteau High School District / 3,118 |
| 297. | 2.76 | Roundup High School District / 4,246 |
| 297. | 2.76 | Springdale Elementary School District / 131 |
| 297. | 2.76 | Denton High School District / 585 |
| 297. | 2.76 | Victor K-12 Schools / 3,486 |
| 305. | 2.75 | Bear Paw Elementary School District / 137 |
| 305. | 2.75 | Nashua K-12 Schools / 891 |
| 305. | 2.75 | Powder River County High School District / 1,759 |
| 305. | 2.75 | Fort Benton High School District / 2,296 |
| 305. | 2.75 | Stanford K-12 Schools / 818 |
| 305. | 2.75 | Twin Buttes Elementary School District / 82 |
| 305. | 2.75 | Cascade High School District / 2,792 |
| 305. | 2.75 | Golden Ridge Elementary School District / 160 |
| 305. | 2.75 | Ringling Elementary School District / 66 |
| 314. | 2.74 | Fort Benton Elementary School District / 1,890 |
| 314. | 2.74 | Helmville Elementary School District / 218 |
| 314. | 2.74 | Hamilton K-12 Schools / 11,122 |
| 314. | 2.74 | Fergus High School District / 9,002 |
| 314. | 2.74 | West Yellowstone K-12 School District / 1,769 |
| 314. | 2.74 | Lewistown Elementary School District / 8,626 |
| 314. | 2.74 | Belfry K-12 Schools / 610 |
| 314. | 2.74 | King Colony Elementary School District / 323 |
| 322. | 2.73 | Anaconda Elementary School District / 9,023 |
| 322. | 2.73 | Noxon Elementary School District / 1,421 |
| 322. | 2.73 | Anaconda High School District / 9,099 |
| 322. | 2.73 | Reedpoint High School District / 584 |
| 322. | 2.73 | Reedpoint Elementary School District / 648 |
| 322. | 2.73 | Woodman Elementary School District / 451 |
| 328. | 2.72 | Broadus Elementary School District / 1,371 |
| 328. | 2.72 | Drummond High School District / 1,236 |
| 328. | 2.72 | Medicine Lake K-12 Schools / 620 |
| 328. | 2.72 | St. Regis K-12 Schools / 1,247 |
| 328. | 2.72 | Hobson K-12 Schools / 738 |
| 328. | 2.72 | Absarokee Elementary School District / 1,865 |
| 328. | 2.72 | Pendroy Elementary School District / 312 |
| 335. | 2.71 | Knees Elementary School District / 168 |
| 335. | 2.71 | Divide Elementary School District / 180 |
| 335. | 2.71 | Davey Elementary School District / 62 |
| 335. | 2.71 | Libby K-12 Schools / 9,844 |
| 335. | 2.71 | Cohagen Elementary School District / 102 |
| 335. | 2.71 | Alberton K-12 Schools / 1,371 |
| 335. | 2.71 | Galata Elementary School District / 263 |
| 342. | 2.70 | Upper West Shore Elementary School District / 903 |
| 342. | 2.70 | Elliston Elementary School District / 339 |
| 342. | 2.70 | Dutton/Brady K-12 Schools / 981 |
| 342. | 2.70 | Ekalaka Elementary School District / 878 |
| 342. | 2.70 | Sheridan Elementary School District / 1,381 |
| 347. | 2.69 | McCormick Elementary School District / 351 |
| 347. | 2.69 | Sunset Elementary School District / 212 |
| 349. | 2.68 | Drummond Elementary School District / 942 |
| 349. | 2.68 | Trego Elementary School District / 588 |
| 349. | 2.68 | Thompson Falls High School District / 3,556 |
| 349. | 2.68 | Plentywood K-12 Schools / 2,434 |
| 349. | 2.68 | Noxon High School District / 2,551 |
| 349. | 2.68 | Richey Elementary School District / 417 |
| 349. | 2.68 | Cascade Elementary School District / 1,952 |
| 349. | 2.68 | Thompson Falls Elementary School District / 3,556 |
| 349. | 2.68 | Ophir Elementary School District / 2,153 |
| 349. | 2.68 | Gardiner Elementary School District / 1,360 |
| 359. | 2.67 | White Sulphur Springs High School District / 1,891 |
| 359. | 2.67 | Hysham K-12 Schools / 718 |
| 359. | 2.67 | Terry K-12 Schools / 1,179 |
| 359. | 2.67 | Gardiner High School District / 1,457 |
| 359. | 2.67 | White Sulphur Springs Elementary School District / 1,766 |
| 359. | 2.67 | Superior K-12 Schools / 2,275 |
| 359. | 2.67 | Grass Range High School District / 594 |
| 359. | 2.67 | Absarokee High School District / 2,302 |
| 367. | 2.66 | Fortine Elementary School District / 770 |
| 367. | 2.66 | Troy Elementary School District / 2,850 |
| 367. | 2.66 | Carter County High School District / 1,144 |
| 367. | 2.66 | Bigfork High School District / 7,462 |
| 367. | 2.66 | Shields Valley High School District / 1,628 |
| 367. | 2.66 | Shields Valley Elementary School District / 1,628 |
| 367. | 2.66 | Melrose Elementary School District / 115 |
| 374. | 2.65 | Sheridan High School District / 1,673 |
| 375. | 2.64 | Bigfork Elementary School District / 5,747 |
| 375. | 2.64 | Seeley Lake Elementary School District / 2,054 |
| 377. | 2.63 | Custer K-12 Schools / 361 |
| 377. | 2.63 | Bloomfield Elementary School District / 104 |
| 377. | 2.63 | Trout Creek Elementary School District / 1,130 |
| 377. | 2.63 | Richey High School District / 487 |
| 377. | 2.63 | Troy High School District / 3,583 |
| 377. | 2.63 | Red Lodge High School District / 3,828 |
| 383. | 2.62 | S H Elementary School District / 157 |
| 383. | 2.62 | Garrison Elementary School District / 128 |
| 383. | 2.62 | Arrowhead Elementary School District / 1,909 |
| 383. | 2.62 | Grass Range Elementary School District / 510 |
| 387. | 2.61 | West Glacier Elementary School District / 486 |
| 387. | 2.61 | McLeod Elementary School District / 223 |
| 387. | 2.61 | Darby K-12 Schools / 4,042 |
| 387. | 2.61 | Lennep Elementary School District / 59 |
| 391. | 2.60 | Vida Elementary School District / 417 |
| 391. | 2.60 | Red Lodge Elementary School District / 3,300 |
| 393. | 2.58 | Pleasant Valley Elementary School District / 164 |
| 393. | 2.58 | Opheim K-12 Schools / 338 |
| 395. | 2.57 | Ennis K-12 Schools / 3,482 |
| 395. | 2.57 | Philipsburg K-12 Schools / 1,843 |
| 397. | 2.56 | Dupuyer Elementary School District / 374 |
| 397. | 2.56 | Wise River Elementary School District / 291 |
| 397. | 2.56 | Fishtail Elementary School District / 358 |
| 400. | 2.54 | Wisdom Elementary School District / 248 |
| 400. | 2.54 | Van Norman Elementary School District / 74 |
| 402. | 2.53 | Swan Valley Elementary School District / 551 |
| 402. | 2.53 | Lincoln K-12 Schools / 1,274 |
| 402. | 2.53 | Augusta High School District / 814 |
| 402. | 2.53 | Ryegate K-12 Schools / 505 |
| 402. | 2.53 | Augusta Elementary School District / 662 |
| 407. | 2.51 | Cottonwood Elementary School District / 108 |
| 408. | 2.49 | Springhill Elementary School District / 115 |
| 409. | 2.47 | Landusky Elementary School District / 44 |
| 410. | 2.46 | Peerless K-12 Schools / 148 |
| 411. | 2.45 | Warrick Elementary School District / 28 |
| 411. | 2.45 | Pine Creek Elementary School District / 357 |
| 411. | 2.45 | Cooke City Elementary School District / 97 |
| 414. | 2.44 | Swan Lake-Salmon Elementary School District / 353 |
| 415. | 2.43 | Alder Elementary School District / 292 |
| 416. | 2.42 | Wolf Creek Elementary School District / 612 |
| 416. | 2.42 | Bynum Elementary School District / 224 |
| 418. | 2.40 | Yaak Elementary School District / 248 |
| 419. | 2.37 | Ovando Elementary School District / 253 |
| 420. | 2.36 | Alzada Elementary School District / 159 |
| 421. | 2.34 | Nye Elementary School District / 212 |
| 421. | 2.34 | Sylvanite Elementary School District / 134 |
| 423. | 2.25 | Deerfield Elementary School District / 58 |
| 424. | 2.24 | Polaris Elementary School District / 97 |
| 425. | 2.00 | Auchard Creek Elementary School District / 152 |
| 425. | 2.00 | Spring Creek Colony Elementary School District / 53 |
Please note that we only rank locations with 'Average Family Size' data. The rank above might not be a complete list. Locations without 'Average Family Size' data are not listed.
