| Rank | Average Family Size ▼ | School District / Population |
| 1. | 4.21 | Middle Grove C-1 School District / 691 |
| 2. | 3.91 | Moniteau County R-V School District / 1,100 |
| 3. | 3.67 | Tri-County R-VII School District / 2,010 |
| 3. | 3.67 | Wellston School District / 2,767 |
| 5. | 3.66 | Seymour R-II School District / 6,617 |
| 6. | 3.49 | Verona R-VII School District / 2,395 |
| 7. | 3.39 | Sturgeon R-V School District / 3,665 |
| 8. | 3.34 | Gentry County R-II School District / 2,293 |
| 9. | 3.31 | Halfway R-III School District / 2,223 |
| 10. | 3.29 | Spickard R-II School District / 589 |
| 11. | 3.25 | Waynesville R-VI Schools / 36,404 |
| 11. | 3.25 | La Monte R-IV School District / 1,950 |
| 11. | 3.25 | Gorin R-III School District / 430 |
| 14. | 3.24 | Wheaton R-III School District / 2,375 |
| 14. | 3.24 | High Point R-III School District / 811 |
| 14. | 3.24 | Jefferson C-123 School District / 884 |
| 17. | 3.23 | Cole County R-II School District / 6,068 |
| 17. | 3.23 | Sheldon R-VIII School District / 1,154 |
| 19. | 3.21 | La Plata R-II School District / 2,731 |
| 19. | 3.21 | Riverview Gardens School District / 41,192 |
| 21. | 3.20 | Fort Zumwalt R-II School District / 110,048 |
| 21. | 3.20 | Pettis County R-V School District / 2,174 |
| 21. | 3.20 | Norwood R-I School District / 2,130 |
| 24. | 3.19 | Liberty Schools / 53,223 |
| 24. | 3.19 | Knob Noster R-VIII School District / 8,419 |
| 24. | 3.19 | Purdy R-II School District / 3,365 |
| 27. | 3.18 | Wentzville R-IV School District / 71,390 |
| 28. | 3.17 | Avilla R-XIII School District / 1,368 |
| 28. | 3.17 | McDonald County R-I School District / 18,808 |
| 28. | 3.17 | Grain Valley R-V School District / 17,765 |
| 31. | 3.16 | Hancock Place School District / 8,388 |
| 31. | 3.16 | Rockwood School District / 116,321 |
| 31. | 3.16 | Troy R-III School District / 33,238 |
| 34. | 3.15 | Cooter R-IV School District / 882 |
| 34. | 3.15 | Silex R-I School District / 2,565 |
| 34. | 3.15 | Carthage R-IX School District / 23,293 |
| 34. | 3.15 | Prairie Home R-V School District / 1,387 |
| 34. | 3.15 | Fordland R-III School District / 4,467 |
| 34. | 3.15 | Jennings School District / 17,392 |
| 40. | 3.14 | Windsor C-1 School District / 18,193 |
| 40. | 3.14 | Hickman Mills C-1 School District / 47,092 |
| 40. | 3.14 | Osage County R-III School District / 6,495 |
| 40. | 3.14 | Kansas City School District / 194,122 |
| 40. | 3.14 | Fort Osage R-I School District / 25,145 |
| 40. | 3.14 | Green Ridge R-VIII School District / 2,124 |
| 46. | 3.13 | Richwoods R-VII School District / 1,651 |
| 46. | 3.13 | Carl Junction R-I School District / 15,576 |
| 46. | 3.13 | Kingston K-14 School District / 4,898 |
| 46. | 3.13 | Scotland County R-I School District / 4,419 |
| 46. | 3.13 | Winfield School District / 10,004 |
| 51. | 3.12 | Webb City R-VII School District / 21,342 |
| 51. | 3.12 | Spring Bluff R-XV School District / 1,752 |
| 51. | 3.12 | Monett R-I School District / 12,231 |
| 51. | 3.12 | Oak Grove R-VI School District / 10,944 |
| 51. | 3.12 | Canton School District / 4,008 |
| 51. | 3.12 | Liberal R-II School District / 2,982 |
| 57. | 3.11 | East Lynne 40 School District / 1,340 |
| 57. | 3.11 | Clarksburg C-2 School District / 805 |
| 57. | 3.11 | Hume R-VIII School District / 834 |
| 57. | 3.11 | Ferguson-Florissant School District / 69,050 |
| 57. | 3.11 | East Newton County R-VI School District / 8,895 |
| 57. | 3.11 | Belton 124 School District / 26,622 |
| 57. | 3.11 | Lee's Summit R-7 School District / 91,982 |
| 64. | 3.10 | Holcomb R-III School District / 2,610 |
| 64. | 3.10 | Rich Hill R-IV School District / 2,572 |
| 64. | 3.10 | Caruthersville School District / 6,133 |
| 64. | 3.10 | Luray 33 School District / 414 |
| 64. | 3.10 | Miller R-II School District / 4,104 |
| 64. | 3.10 | Fox C-6 School District / 67,955 |
| 64. | 3.10 | Lawson R-XIV School District / 5,981 |
| 71. | 3.09 | Ripley County R-IV School District / 1,112 |
| 71. | 3.09 | St. Elizabeth R-IV School District / 1,263 |
| 71. | 3.09 | Maysville R-I School District / 4,187 |
| 71. | 3.09 | Francis Howell School District / 113,553 |
| 71. | 3.09 | Neosho R-5 School District / 26,125 |
| 71. | 3.09 | Union R-XI School District / 19,974 |
| 71. | 3.09 | Hayti R-II School District / 3,876 |
| 71. | 3.09 | Kearney R-I School District / 17,877 |
| 71. | 3.09 | Pleasant Hill R-III School District / 11,062 |
| 80. | 3.08 | Exeter R-VI School District / 1,891 |
| 80. | 3.08 | Adair County R-II School District / 1,379 |
| 80. | 3.08 | Leeton R-X School District / 1,883 |
| 80. | 3.08 | Bowling Green R-I School District / 11,119 |
| 80. | 3.08 | Meadville R-IV School District / 1,279 |
| 80. | 3.08 | Hazelwood School District / 118,853 |
| 80. | 3.08 | Cass County R-V School District / 2,989 |
| 80. | 3.08 | Normandy School District / 35,210 |
| 80. | 3.08 | St. Louis City School District / 319,294 |
| 80. | 3.08 | Moniteau County R-VI School District / 5,028 |
| 90. | 3.07 | Sarcoxie R-II School District / 4,107 |
| 90. | 3.07 | Smithville School District / 11,921 |
| 90. | 3.07 | Hillsboro R-III School District / 21,291 |
| 90. | 3.07 | Festus R-6 School District / 17,876 |
| 90. | 3.07 | Raymore-Peculiar R-II School District / 32,915 |
| 90. | 3.07 | Jasper County R-V School District / 2,971 |
| 90. | 3.07 | Johnson County R-VII School District / 3,630 |
| 97. | 3.06 | New Haven School District / 2,522 |
| 97. | 3.06 | Bell City R-II School District / 1,474 |
| 97. | 3.06 | New York R-IV School District / 313 |
| 97. | 3.06 | Princeton R-V School District / 2,633 |
| 97. | 3.06 | St. Clair R-XIII School District / 12,448 |
| 97. | 3.06 | Southwest R-V School District / 4,746 |
| 97. | 3.06 | Ozark R-VI School District / 28,805 |
| 97. | 3.06 | Clarkton C-4 School District / 1,880 |
| 97. | 3.06 | Hurley R-I School District / 1,546 |
| 97. | 3.06 | Henry County R-I School District / 4,607 |
| 107. | 3.05 | Harrisonville R-IX School District / 14,019 |
| 107. | 3.05 | Seneca R-VII School District / 8,756 |
| 107. | 3.05 | Grandview R-II School District / 4,814 |
| 107. | 3.05 | Taneyville R-II School District / 1,598 |
| 107. | 3.05 | Milan C-2 School District / 3,958 |
| 107. | 3.05 | Warren County R-III School District / 18,599 |
| 107. | 3.05 | Cameron R-I School District / 13,070 |
| 107. | 3.05 | Crocker School District / 3,333 |
| 107. | 3.05 | Clever R-V School District / 5,906 |
| 107. | 3.05 | Crane R-III School District / 3,558 |
| 107. | 3.05 | Pierce City R-VI School District / 4,344 |
| 107. | 3.05 | Northeast Vernon County R-I School District / 2,004 |
| 119. | 3.04 | Blue Springs R-IV School District / 76,331 |
| 119. | 3.04 | East Carter County R-II School District / 4,244 |
| 119. | 3.04 | Iberia R-V School District / 3,972 |
| 119. | 3.04 | Schuyler County R-I School District / 4,565 |
| 119. | 3.04 | Sherwood Cass R-VIII School District / 5,085 |
| 119. | 3.04 | Republic School District / 23,511 |
| 119. | 3.04 | Otterville R-VI School District / 1,540 |
| 119. | 3.04 | Smithton R-VI School District / 3,719 |
| 119. | 3.04 | Aurora R-8 School District / 11,098 |
| 128. | 3.03 | Lonedell R-XIV School District / 3,476 |
| 128. | 3.03 | Moniteau County R-I School District / 7,210 |
| 128. | 3.03 | Webster Groves School District / 32,140 |
| 128. | 3.03 | Howell Valley R-I School District / 2,005 |
| 128. | 3.03 | Scott City R-I School District / 5,355 |
| 128. | 3.03 | Scott County R-II School District / 3,816 |
| 128. | 3.03 | Marshall School District / 15,199 |
| 128. | 3.03 | Meramec Valley R-III School District / 22,762 |
| 128. | 3.03 | North Harrison R-III School District / 1,436 |
| 128. | 3.03 | Senath-Hornersville C-8 School District / 4,755 |
| 128. | 3.03 | Odessa R-VII School District / 12,274 |
| 128. | 3.03 | Hudson R-IX School District / 458 |
| 128. | 3.03 | South Pemiscot Schools / 3,594 |
| 128. | 3.03 | Osage County R-II School District / 5,310 |
| 128. | 3.03 | Cole County R-V School District / 4,962 |
| 143. | 3.02 | Central R-III School District / 11,625 |
| 143. | 3.02 | Centralia R-VI School District / 7,249 |
| 143. | 3.02 | Washington School District / 31,485 |
| 143. | 3.02 | Miami R-I School District / 1,457 |
| 143. | 3.02 | Hamilton R-II School District / 3,778 |
| 143. | 3.02 | Gallatin R-V School District / 3,183 |
| 143. | 3.02 | Grandview C-4 School District / 31,917 |
| 143. | 3.02 | Diamond R-IV School District / 5,638 |
| 143. | 3.02 | Sullivan School District / 11,771 |
| 143. | 3.02 | Orrick R-XI School District / 2,049 |
| 143. | 3.02 | Wellsville-Middletown R-I School District / 2,629 |
| 143. | 3.02 | Jefferson County R-VII School District / 5,999 |
| 143. | 3.02 | Elsberry R-II School District / 4,790 |
| 143. | 3.02 | Crystal City 47 School District / 3,992 |
| 143. | 3.02 | Perry County 32 School District / 17,763 |
| 143. | 3.02 | Bradleyville R-I School District / 961 |
| 143. | 3.02 | Northwest R-I School District / 45,694 |
| 143. | 3.02 | Nixa School District / 28,372 |
| 143. | 3.02 | Pleasant Hope R-VI School District / 4,888 |
| 143. | 3.02 | Northeast Nodaway County R-V School District / 1,328 |
| 143. | 3.02 | Pilot Grove C-4 School District / 1,708 |
| 143. | 3.02 | Southland School District / 2,050 |
| 143. | 3.02 | New Bloomfield R-III School District / 4,232 |
| 143. | 3.02 | Sparta R-III School District / 4,394 |
| 167. | 3.01 | Drexel R-IV School District / 1,798 |
| 167. | 3.01 | Adrian County R-III School District / 3,923 |
| 167. | 3.01 | Kelso C-7 School District / 2,219 |
| 167. | 3.01 | Buchanan County R-IV School District / 2,123 |
| 167. | 3.01 | Ritenour School District / 43,629 |
| 167. | 3.01 | Phelps County R-III School District / 2,018 |
| 167. | 3.01 | Lathrop R-II School District / 4,836 |
| 167. | 3.01 | Laclede County C-5 School District / 3,950 |
| 167. | 3.01 | Marshfield R-I School District / 16,818 |
| 167. | 3.01 | Park Hill School District / 62,261 |
| 167. | 3.01 | Steelville School District / 5,883 |
| 167. | 3.01 | Ladue School District / 27,103 |
| 167. | 3.01 | Cole County R-I School District / 3,990 |
| 167. | 3.01 | Sedalia 200 School District / 29,793 |
| 167. | 3.01 | Winona R-III School District / 2,622 |
| 167. | 3.01 | Harrisburg R-VIII School District / 3,294 |
| 167. | 3.01 | Oak Ridge R-VI School District / 2,304 |
| 167. | 3.01 | Hickory County R-I School District / 4,869 |
| 185. | 3.00 | Laquey R-V School District / 3,939 |
| 185. | 3.00 | Leopold R-III School District / 889 |
| 185. | 3.00 | Campbell R-II School District / 3,611 |
| 185. | 3.00 | Kirkwood School District / 40,394 |
| 185. | 3.00 | Dixon R-I School District / 6,436 |
| 185. | 3.00 | Fair Play R-II School District / 2,514 |
| 185. | 3.00 | Northeast Randolph County R-IV School District / 2,015 |
| 185. | 3.00 | De Soto School District / 17,199 |
| 185. | 3.00 | Miller County R-III School District / 1,414 |
| 185. | 3.00 | Calhoun R-VIII School District / 1,112 |
| 185. | 3.00 | Boone County R-IV School District / 7,263 |
| 185. | 3.00 | Willard School District / 23,600 |
| 185. | 3.00 | Laclede County R-I School District / 4,462 |
| 185. | 3.00 | St. Joseph School District / 80,701 |
| 185. | 3.00 | Crawford County R-I School District / 6,249 |
| 185. | 3.00 | East Buchanan County C-1 School District / 4,354 |
| 185. | 3.00 | Wright City R-II School District / 10,768 |
| 185. | 3.00 | Miami R-I School District / 569 |
| 203. | 2.99 | Shawnee R-III School District / 637 |
| 203. | 2.99 | Willow Springs R-IV School District / 7,728 |
| 203. | 2.99 | Hartville R-II School District / 4,468 |
| 203. | 2.99 | Warrensburg R-VI School District / 25,863 |
| 203. | 2.99 | Knox County R-I School District / 4,095 |
| 203. | 2.99 | Stet R-XV School District / 513 |
| 203. | 2.99 | North Andrew County R-VI School District / 1,898 |
| 203. | 2.99 | Potosi R-III School District / 13,408 |
| 203. | 2.99 | North Callaway R-I School District / 6,857 |
| 203. | 2.99 | Bronaugh R-VII School District / 1,429 |
| 203. | 2.99 | Mount Vernon R-V School District / 9,214 |
| 203. | 2.99 | Ste. Genevieve County R-II School District / 15,185 |
| 203. | 2.99 | Pike County R-III School District / 2,957 |
| 203. | 2.99 | Excelsior Springs 40 School District / 17,189 |
| 203. | 2.99 | Mid-Buchanan County R-V School District / 4,290 |
| 203. | 2.99 | Oran R-III School District / 2,135 |
| 203. | 2.99 | South Nodaway County R-IV School District / 997 |
| 203. | 2.99 | Lockwood R-I School District / 2,303 |
| 203. | 2.99 | Manes R-V School District / 570 |
| 222. | 2.98 | Westview C-6 School District / 1,222 |
| 222. | 2.98 | Avenue City R-IX School District / 1,142 |
| 222. | 2.98 | Junction Hill C-12 School District / 1,889 |
| 222. | 2.98 | Franklin County R-II School District / 1,383 |
| 222. | 2.98 | Bolivar R-I School District / 16,129 |
| 222. | 2.98 | Hardin-Central C-2 School District / 1,044 |
| 222. | 2.98 | Bayless School District / 13,162 |
| 222. | 2.98 | Braymer C-4 School District / 1,731 |
| 222. | 2.98 | Richmond R-XVI School District / 10,016 |
| 222. | 2.98 | Kirbyville R-VI School District / 2,835 |
| 222. | 2.98 | North Kansas City School District / 123,348 |
| 222. | 2.98 | Scott County R-IV School District / 5,905 |
| 222. | 2.98 | South Callaway R-II Schools / 4,457 |
| 222. | 2.98 | Scott County Central Schools / 1,971 |
| 222. | 2.98 | Mansfield R-IV School District / 4,349 |
| 222. | 2.98 | Lamar R-I School District / 7,415 |
| 222. | 2.98 | Strafford R-VI School District / 6,647 |
| 222. | 2.98 | Midway School District / 3,222 |
| 240. | 2.97 | Southern Boone County R-I School District / 7,932 |
| 240. | 2.97 | Marion County Early R-V School District / 3,938 |
| 240. | 2.97 | Moberly School District / 16,390 |
| 240. | 2.97 | Sunrise R-IX School District / 3,289 |
| 240. | 2.97 | Polo R-VII School District / 2,120 |
| 240. | 2.97 | Pettis County R-XII School District / 1,044 |
| 240. | 2.97 | Platte County R-III School District / 22,548 |
| 240. | 2.97 | Gideon School District / 1,733 |
| 240. | 2.97 | Spokane R-VII School District / 4,750 |
| 240. | 2.97 | Fredericktown R-I School District / 10,918 |
| 240. | 2.97 | Dunklin R-V School District / 9,270 |
| 240. | 2.97 | Glenwood R-VIII School District / 2,362 |
| 240. | 2.97 | Malta Bend R-V School District / 669 |
| 240. | 2.97 | Plainview R-VIII School District / 807 |
| 240. | 2.97 | Lone Jack C-6 School District / 3,100 |
| 240. | 2.97 | Greene County R-VIII School District / 12,679 |
| 240. | 2.97 | Jackson R-II School District / 30,067 |
| 240. | 2.97 | Savannah R-III School District / 13,635 |
| 258. | 2.96 | West St. Francis County R-IV School District / 5,878 |
| 258. | 2.96 | Concordia School District / 3,799 |
| 258. | 2.96 | Green Forest R-II School District / 1,940 |
| 258. | 2.96 | Richards R-V School District / 3,369 |
| 258. | 2.96 | Marion County R-II School District / 1,278 |
| 258. | 2.96 | Fair Grove R-10 School District / 5,671 |
| 258. | 2.96 | Raytown C-2 School District / 58,838 |
| 258. | 2.96 | Shelby County C-1 School District / 2,131 |
| 258. | 2.96 | Palmyra R-I School District / 6,736 |
| 258. | 2.96 | Dallas County R-I School District / 12,874 |
| 258. | 2.96 | Humansville R-IV School District / 3,108 |
| 258. | 2.96 | Independence Public Schools / 94,720 |
| 258. | 2.96 | Wellington-Napoleon R-IX School District / 2,364 |
| 258. | 2.96 | North St. Francis County R-I School District / 20,261 |
| 258. | 2.96 | Kingsville R-I School District / 1,952 |
| 258. | 2.96 | Columbia Public Schools / 136,836 |
| 258. | 2.96 | Carrollton R-VII School District / 5,621 |
| 258. | 2.96 | Charleston R-I School District / 8,525 |
| 258. | 2.96 | Plato R-V School District / 3,401 |
| 277. | 2.95 | Brookfield R-III School District / 6,503 |
| 277. | 2.95 | Breckenridge R-I School District / 590 |
| 277. | 2.95 | Neelyville R-IV School District / 3,822 |
| 277. | 2.95 | Strasburg C-3 School District / 1,109 |
| 277. | 2.95 | Nevada R-V School District / 15,264 |
| 277. | 2.95 | Mirabile C-1 School District / 368 |
| 277. | 2.95 | Billings R-IV School District / 2,838 |
| 277. | 2.95 | North Platte County R-I School District / 3,930 |
| 277. | 2.95 | Pemiscot County R-3 School District / 956 |
| 277. | 2.95 | Livingston County R-III School District / 622 |
| 277. | 2.95 | Licking School District / 6,662 |
| 277. | 2.95 | Morgan County R-II School District / 11,110 |
| 277. | 2.95 | Sikeston School District / 20,716 |
| 277. | 2.95 | Hannibal School District / 22,813 |
| 277. | 2.95 | Woodland R-IV School District / 5,940 |
| 277. | 2.95 | Kennett 39 School District / 10,898 |
| 293. | 2.94 | Sweet Springs R-VII School District / 2,869 |
| 293. | 2.94 | Mountain Grove R-III School District / 9,530 |
| 293. | 2.94 | Lebanon School District / 24,821 |
| 293. | 2.94 | Parkway School District / 140,234 |
| 293. | 2.94 | Higbee R-VIII School District / 1,403 |
| 293. | 2.94 | Mehlville School District / 95,468 |
| 293. | 2.94 | Thayer R-II School District / 3,859 |
| 293. | 2.94 | St. Charles County R-V School District / 10,607 |
| 293. | 2.94 | Chadwick R-I School District / 1,517 |
| 293. | 2.94 | Golden City School District / 1,688 |
| 293. | 2.94 | Osage County R-I School District / 1,156 |
| 293. | 2.94 | Meadow Heights R-II School District / 3,747 |
| 293. | 2.94 | Fulton School District / 19,130 |
| 293. | 2.94 | Clinton County R-III School District / 5,430 |
| 293. | 2.94 | West Plains R-VII School District / 13,461 |
| 293. | 2.94 | Doniphan R-I School District / 10,336 |
| 293. | 2.94 | Salem R-80 School District / 7,006 |
| 293. | 2.94 | Monroe City R-I School District / 5,433 |
| 293. | 2.94 | Santa Fe R-X School District / 2,517 |
| 293. | 2.94 | Branson R-IV School District / 26,576 |
| 293. | 2.94 | South Iron County R-I School District / 2,294 |
| 293. | 2.94 | Moniteau County C-1 School District / 1,409 |
| 315. | 2.93 | Lexington R-V School District / 5,908 |
| 315. | 2.93 | Butler R-V School District / 6,338 |
| 315. | 2.93 | South Harrison School District / 5,688 |
| 315. | 2.93 | Holden R-III School District / 8,613 |
| 315. | 2.93 | Mountain View-Birch Tree R-III School District / 8,022 |
| 315. | 2.93 | New Madrid County R-I School District / 9,385 |
| 315. | 2.93 | Farmington R-7 School District / 27,796 |
| 315. | 2.93 | Shelby County R-IV School District / 4,317 |
| 315. | 2.93 | King City R-I School District / 1,874 |
| 315. | 2.93 | Risco R-II School District / 769 |
| 315. | 2.93 | Madison C-3 School District / 1,419 |
| 315. | 2.93 | Marceline R-V School District / 3,601 |
| 315. | 2.93 | Howard County R-II School District / 2,087 |
| 328. | 2.92 | Strain-Japan R-XVI School District / 893 |
| 328. | 2.92 | Revere C-3 School District / 619 |
| 328. | 2.92 | Blackwater R-II School District / 913 |
| 328. | 2.92 | Newtown-Harris R-III School District / 497 |
| 328. | 2.92 | Portageville School District / 4,260 |
| 328. | 2.92 | Poplar Bluff R-I School District / 32,169 |
| 328. | 2.92 | Southern Reynolds County R-IV School District / 3,041 |
| 328. | 2.92 | Maries County R-I School District / 4,026 |
| 328. | 2.92 | Osborn R-O School District / 771 |
| 328. | 2.92 | Rolla 31 School District / 30,939 |
| 328. | 2.92 | Arcadia Valley R-II School District / 5,908 |
| 328. | 2.92 | Naylor R-II School District / 1,844 |
| 328. | 2.92 | Eldon R-I School District / 12,072 |
| 328. | 2.92 | Montgomery County R-II School District / 8,610 |
| 328. | 2.92 | East Prairie R-II School District / 5,821 |
| 328. | 2.92 | Bunker R-III School District / 1,547 |
| 328. | 2.92 | Kirksville R-III School District / 22,063 |
| 328. | 2.92 | Jefferson City Public Schools / 71,991 |
| 328. | 2.92 | Joplin R-VIII School District / 59,509 |
| 347. | 2.91 | Altenburg 48 School District / 1,046 |
| 347. | 2.91 | North Mercer County R-III School District / 1,041 |
| 347. | 2.91 | Gasconade County R-II School District / 11,820 |
| 347. | 2.91 | Crawford County R-2 School District / 9,186 |
| 347. | 2.91 | Renick R-V School District / 1,210 |
| 347. | 2.91 | Atlanta C-3 Schools / 1,247 |
| 347. | 2.91 | St. James R-I School District / 10,203 |
| 347. | 2.91 | Bevier C-4 School District / 1,395 |
| 347. | 2.91 | Marionville R-IX School District / 4,616 |
| 347. | 2.91 | Boonville School District / 11,591 |
| 347. | 2.91 | Westran R-I School District / 3,668 |
| 347. | 2.91 | Trenton R-IX School District / 7,824 |
| 347. | 2.91 | Holliday C-2 School District / 563 |
| 347. | 2.91 | Linn County R-I School District / 1,580 |
| 347. | 2.91 | Galena R-II School District / 3,750 |
| 347. | 2.91 | Fairview R-XI School District / 4,501 |
| 347. | 2.91 | Macon County R-I School District / 8,696 |
| 347. | 2.91 | Pattonville School District / 41,088 |
| 347. | 2.91 | Walnut Grove R-V School District / 1,930 |
| 366. | 2.90 | Lewis County C-1 School District / 6,554 |
| 366. | 2.90 | West Nodaway County R-I School District / 1,788 |
| 366. | 2.90 | Chillicothe R-II School District / 12,889 |
| 366. | 2.90 | Stockton R-I School District / 6,931 |
| 366. | 2.90 | Slater School District / 2,071 |
| 366. | 2.90 | Malden R-I School District / 6,275 |
| 366. | 2.90 | Dent-Phelps R-III School District / 2,807 |
| 366. | 2.90 | Salisbury R-IV School District / 3,510 |
| 366. | 2.90 | Adair County R-I School District / 1,872 |
| 366. | 2.90 | Louisiana R-II School District / 4,373 |
| 366. | 2.90 | University City School District / 35,962 |
| 366. | 2.90 | Lafayette County C-1 School District / 6,585 |
| 366. | 2.90 | Cole Camp R-I School District / 5,082 |
| 366. | 2.90 | Ava R-I School District / 9,186 |
| 366. | 2.90 | New Franklin R-I School District / 2,646 |
| 366. | 2.90 | Valley Park School District / 8,427 |
| 366. | 2.90 | Bloomfield School District / 4,658 |
| 383. | 2.89 | Oak Hill R-I School District / 1,457 |
| 383. | 2.89 | Winston R-VI School District / 1,225 |
| 383. | 2.89 | Tina-Avalon R-II School District / 917 |
| 383. | 2.89 | Newburg R-II School District / 2,888 |
| 383. | 2.89 | Richland R-I School District / 1,542 |
| 383. | 2.89 | Chilhowee R-IV School District / 1,053 |
| 383. | 2.89 | Ridgeway R-V School District / 735 |
| 383. | 2.89 | Ash Grove R-IV School District / 4,966 |
| 383. | 2.89 | Clark County R-I School District / 6,053 |
| 383. | 2.89 | Mexico 59 School District / 15,366 |
| 383. | 2.89 | Albany R-III School District / 2,851 |
| 383. | 2.89 | Cape Girardeau 63 School District / 38,472 |
| 383. | 2.89 | Union Star R-II School District / 988 |
| 396. | 2.88 | Lindbergh R-VIII School District / 46,429 |
| 396. | 2.88 | Cabool School District / 5,620 |
| 396. | 2.88 | Bosworth R-V School District / 692 |
| 396. | 2.88 | Hale R-I School District / 800 |
| 396. | 2.88 | Advance R-IV School District / 3,021 |
| 396. | 2.88 | St. Charles R-VI School District / 53,421 |
| 396. | 2.88 | Houston R-I School District / 5,908 |
| 396. | 2.88 | West Platte County R-II School District / 3,822 |
| 396. | 2.88 | Eminence R-I School District / 2,029 |
| 396. | 2.88 | Bernie School District / 3,151 |
| 396. | 2.88 | Marquand-Zion School District / 1,261 |
| 396. | 2.88 | El Dorado Springs R-II School District / 8,193 |
| 396. | 2.88 | Bismarck R-V School District / 3,674 |
| 396. | 2.88 | North Nodaway County R-VI School District / 1,376 |
| 396. | 2.88 | Camden County R-II School District / 2,872 |
| 396. | 2.88 | Grundy County R-V School District / 1,040 |
| 412. | 2.87 | Delta R-V School District / 2,142 |
| 412. | 2.87 | Bakersfield R-IV School District / 1,706 |
| 412. | 2.87 | Nell Holcomb R-IV School District / 2,812 |
| 412. | 2.87 | North Wood R-IV School District / 1,949 |
| 412. | 2.87 | Roscoe C-1 School District / 679 |
| 412. | 2.87 | Ballard R-II School District / 867 |
| 412. | 2.87 | Norborne R-VIII School District / 1,089 |
| 412. | 2.87 | Maryville R-II Schools / 15,911 |
| 412. | 2.87 | Clayton School District / 18,618 |
| 412. | 2.87 | Pulaski County R-IV School District / 3,431 |
| 412. | 2.87 | Maries County R-II School District / 5,501 |
| 423. | 2.86 | Stewartsville C-2 School District / 1,271 |
| 423. | 2.86 | Dadeville R-II School District / 960 |
| 423. | 2.86 | Everton R-III School District / 1,195 |
| 423. | 2.86 | Niangua R-V School District / 1,941 |
| 423. | 2.86 | Thornfield R-I School District / 643 |
| 423. | 2.86 | Ripley County R-III School District / 816 |
| 423. | 2.86 | Twin Rivers R-X School District / 5,956 |
| 423. | 2.86 | Alton R-IV School District / 4,750 |
| 423. | 2.86 | North Pemiscot County R-I School District / 1,784 |
| 423. | 2.86 | North Daviess R-III School District / 772 |
| 423. | 2.86 | Gilman City R-IV School District / 785 |
| 423. | 2.86 | Brunswick R-II School District / 1,603 |
| 423. | 2.86 | Puxico R-VIII School District / 4,976 |
| 423. | 2.86 | Laredo R-VII School District / 481 |
| 423. | 2.86 | Gasconade County R-I School District / 7,671 |
| 423. | 2.86 | Brentwood School District / 8,138 |
| 439. | 2.85 | Affton School District / 26,187 |
| 439. | 2.85 | Oregon-Howell R-III School District / 1,627 |
| 439. | 2.85 | Osceola School District / 3,251 |
| 439. | 2.85 | Greenville R-II School District / 5,601 |
| 439. | 2.85 | Summersville R-II School District / 3,058 |
| 439. | 2.85 | Callao C-8 School District / 645 |
| 439. | 2.85 | Cooper County C-4 School District / 933 |
| 446. | 2.84 | Northwestern R-I School District / 1,032 |
| 446. | 2.84 | Springfield School District / 204,727 |
| 446. | 2.84 | Morgan County R-I School District / 5,309 |
| 446. | 2.84 | Cassville R-IV School District / 11,765 |
| 446. | 2.84 | Pattonsburg R-II School District / 1,103 |
| 446. | 2.84 | Ralls County R-II School District / 5,269 |
| 446. | 2.84 | Iron County C-4 School District / 2,879 |
| 446. | 2.84 | Community R-VI School District / 2,185 |
| 446. | 2.84 | Fayette R-III School District / 5,145 |
| 446. | 2.84 | Zalma R-V School District / 1,394 |
| 446. | 2.84 | Kingston 42 School District / 483 |
| 446. | 2.84 | Valley R-VI School District / 2,931 |
| 446. | 2.84 | Gasconade C-4 School District / 839 |
| 446. | 2.84 | Putnam County R-I School District / 4,843 |
| 460. | 2.83 | Belleview R-III School District / 1,426 |
| 460. | 2.83 | Skyline R-II School District / 1,126 |
| 460. | 2.83 | Appleton City R-II School District / 2,330 |
| 463. | 2.82 | Centerville R-I School District / 800 |
| 463. | 2.82 | Dexter R-XI School District / 12,958 |
| 463. | 2.82 | Southwest Livingston County R-I School District / 1,211 |
| 463. | 2.82 | Macks Creek R-V School District / 2,450 |
| 463. | 2.82 | Swedeborg R-III School District / 550 |
| 463. | 2.82 | Tarkio R-I School District / 2,264 |
| 463. | 2.82 | Green City R-I School District / 1,731 |
| 463. | 2.82 | Van Buren R-I School District / 3,004 |
| 463. | 2.82 | Clearwater R-I School District / 6,644 |
| 463. | 2.82 | Clinton School District / 11,509 |
| 473. | 2.81 | Delta C-7 School District / 906 |
| 473. | 2.81 | Success R-VI School District / 1,035 |
| 473. | 2.81 | Van-Far School District / 5,416 |
| 473. | 2.81 | Weaubleau R-III School District / 2,616 |
| 477. | 2.80 | Dora R-III School District / 1,843 |
| 477. | 2.80 | Center 58 School District / 24,971 |
| 477. | 2.80 | Keytesville R-III School District / 1,286 |
| 477. | 2.80 | Pleasant View R-VI School District / 449 |
| 477. | 2.80 | Raymondville R-7 School District / 1,171 |
| 482. | 2.79 | Orearville R-IV School District / 400 |
| 482. | 2.79 | Greenfield R-IV School District / 3,250 |
| 482. | 2.79 | Rock Port R-II School District / 2,329 |
| 482. | 2.79 | Cowgill R-VI School District / 386 |
| 486. | 2.78 | Maplewood-Richmond Heights School District / 13,958 |
| 486. | 2.78 | Lakeland R-III School District / 3,211 |
| 486. | 2.78 | Cainsville R-I School District / 508 |
| 486. | 2.78 | Montrose R-XIV School District / 795 |
| 486. | 2.78 | Gainesville R-V School District / 4,526 |
| 491. | 2.77 | Fairfax R-III School District / 1,092 |
| 491. | 2.77 | Hardeman R-X School District / 578 |
| 493. | 2.76 | Hollister R-V School District / 10,430 |
| 493. | 2.76 | Nodaway-Holt R-VII School District / 1,574 |
| 493. | 2.76 | South Holt County R-I School District / 1,865 |
| 493. | 2.76 | Forsyth R-III School District / 8,646 |
| 493. | 2.76 | Lincoln R-II School District / 3,945 |
| 498. | 2.75 | Missouri City 56 School District / 519 |
| 499. | 2.74 | Paris R-II School District / 3,081 |
| 499. | 2.74 | Worth County R-III School District / 2,216 |
| 499. | 2.74 | Couch R-I School District / 1,228 |
| 499. | 2.74 | School of The Osage R-II School District / 12,804 |
| 499. | 2.74 | Craig R-III School District / 730 |
| 499. | 2.74 | Macon County R-IV School District / 859 |
| 499. | 2.74 | Holt County R-II School District / 1,802 |
| 506. | 2.72 | Mark Twain R-VIII School District / 665 |
| 506. | 2.72 | Gilliam C-4 School District / 351 |
| 506. | 2.72 | Lesterville R-IV School District / 1,295 |
| 509. | 2.71 | Bucklin R-II School District / 1,066 |
| 510. | 2.70 | Camdenton R-III School District / 31,430 |
| 511. | 2.65 | Davis R-XII School District / 487 |
| 512. | 2.64 | Boncl R-X School District / 487 |
| 513. | 2.61 | Warsaw R-IX School District / 10,830 |
| 513. | 2.61 | Leesville R-IX School District / 1,079 |
| 513. | 2.61 | Reeds Spring R-IV School District / 16,588 |
| 516. | 2.59 | Lutie R-VI School District / 1,635 |
| 517. | 2.56 | Wheatland R-II School District / 3,011 |
| 518. | 2.53 | Hermitage R-IV School District / 3,069 |
| 519. | 2.51 | Blue Eye School District / 5,399 |
| 520. | 2.49 | Climax Springs R-IV School District / 2,850 |
| 521. | 2.41 | Shell Knob 78 School District / 2,577 |
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.
