| Rank | Average Family Size ▼ | School District / Population |
| 1. | 3.84 | Thomasville City School District / 6,936 |
| 2. | 3.82 | Oneonta City School District / 6,785 |
| 3. | 3.73 | Hale County School District / 17,994 |
| 4. | 3.64 | Wilcox County School District / 12,552 |
| 5. | 3.60 | Bullock County School District / 10,917 |
| 6. | 3.57 | Clarke County School District / 19,502 |
| 7. | 3.55 | St. Clair County School District / 50,185 |
| 8. | 3.53 | Blount County School District / 50,019 |
| 9. | 3.47 | Tallassee City School District / 8,165 |
| 10. | 3.47 | Roanoke City School District / 6,614 |
| 11. | 3.44 | Albertville City School District / 19,405 |
| 12. | 3.42 | Tarrant City School District / 6,601 |
| 13. | 3.42 | Randolph County School District / 15,890 |
| 14. | 3.38 | Fort Rucker School District / 6,204 |
| 15. | 3.36 | Limestone County School District / 49,474 |
| 16. | 3.36 | Midfield City School District / 5,250 |
| 17. | 3.35 | Cleburne County School District / 14,454 |
| 18. | 3.34 | Boaz City School District / 8,247 |
| 19. | 3.32 | Houston County School District / 32,965 |
| 20. | 3.31 | Maxwell AFB School District / 2,388 |
| 21. | 3.31 | Bibb County School District / 21,464 |
| 22. | 3.30 | Sumter County School District / 13,267 |
| 23. | 3.30 | Autauga County School District / 49,584 |
| 24. | 3.28 | Athens City School District / 22,589 |
| 25. | 3.27 | Elmore County School District / 70,273 |
| 26. | 3.27 | Madison City School District / 39,652 |
| 27. | 3.24 | Opp City School District / 6,573 |
| 28. | 3.24 | Fairfield City School District / 11,503 |
| 29. | 3.23 | Fort Payne City School District / 13,849 |
| 30. | 3.23 | Henry County School District / 16,580 |
| 31. | 3.23 | DeKalb County School District / 54,334 |
| 32. | 3.21 | Eufaula City School District / 14,457 |
| 33. | 3.20 | Alexander City City School District / 17,745 |
| 34. | 3.20 | Lanett City School District / 7,288 |
| 35. | 3.20 | Arab City School District / 7,942 |
| 36. | 3.19 | Tuscaloosa County School District / 90,500 |
| 37. | 3.19 | Marshall County School District / 44,834 |
| 38. | 3.19 | Dothan City School District / 64,734 |
| 39. | 3.19 | Dallas County School District / 24,097 |
| 40. | 3.18 | Tuscaloosa City School District / 88,254 |
| 41. | 3.18 | Marengo County School District / 9,038 |
| 42. | 3.18 | Butler County School District / 20,189 |
| 43. | 3.17 | Trussville City School District / 18,280 |
| 44. | 3.16 | Lowndes County School District / 12,632 |
| 45. | 3.16 | Pell City City School District / 26,230 |
| 46. | 3.16 | Mobile County School District / 405,331 |
| 47. | 3.16 | Chambers County School District / 27,416 |
| 48. | 3.15 | Madison County School District / 106,841 |
| 49. | 3.15 | Shelby County School District / 162,179 |
| 50. | 3.15 | Macon County School District / 22,304 |
| 51. | 3.15 | Selma City School District / 18,651 |
| 52. | 3.14 | Chilton County School District / 42,272 |
| 53. | 3.13 | Haleyville City School District / 8,713 |
| 54. | 3.13 | Linden City School District / 4,847 |
| 55. | 3.13 | Birmingham City School District / 231,486 |
| 56. | 3.12 | Talladega City School District / 16,882 |
| 57. | 3.12 | Demopolis City School District / 7,325 |
| 58. | 3.10 | Geneva County School District / 19,247 |
| 59. | 3.10 | Lee County School District / 46,386 |
| 60. | 3.10 | Cullman County School District / 65,742 |
| 61. | 3.10 | Elba City School District / 5,468 |
| 62. | 3.10 | Jackson County School District / 38,167 |
| 63. | 3.09 | Montgomery County School District / 221,981 |
| 64. | 3.09 | Greene County School District / 9,112 |
| 65. | 3.09 | Hoover City School District / 69,879 |
| 66. | 3.08 | Mountain Brook City School District / 20,989 |
| 67. | 3.08 | Hartselle City School District / 13,219 |
| 68. | 3.08 | Talladega County School District / 47,659 |
| 69. | 3.07 | Opelika City School District / 26,395 |
| 70. | 3.06 | Jefferson County School District / 225,213 |
| 71. | 3.06 | Vestavia Hills City School District / 31,191 |
| 72. | 3.06 | Homewood City School District / 24,019 |
| 73. | 3.06 | Covington County School District / 21,417 |
| 74. | 3.05 | Tallapoosa County School District / 21,309 |
| 75. | 3.05 | Sylacauga City School District / 12,962 |
| 76. | 3.05 | Cullman City School District / 14,868 |
| 77. | 3.04 | Brewton City School District / 5,247 |
| 78. | 3.04 | Decatur City School District / 55,387 |
| 79. | 3.04 | Lauderdale County School District / 51,180 |
| 80. | 3.03 | Escambia County School District / 32,314 |
| 81. | 3.02 | Morgan County School District / 46,710 |
| 82. | 3.02 | Bessemer City School District / 28,993 |
| 83. | 3.02 | Andalusia City School District / 8,698 |
| 84. | 3.02 | Washington County School District / 17,212 |
| 85. | 3.01 | Barbour County School District / 15,206 |
| 86. | 3.01 | Calhoun County School District / 55,795 |
| 87. | 3.01 | Guntersville City School District / 8,288 |
| 88. | 3.00 | Muscle Shoals City School District / 12,803 |
| 89. | 3.00 | Walker County School District / 54,920 |
| 90. | 3.00 | Conecuh County School District / 13,114 |
| 91. | 2.99 | Huntsville City School District / 169,448 |
| 92. | 2.98 | Pickens County School District / 19,528 |
| 93. | 2.98 | Russell County School District / 22,218 |
| 94. | 2.98 | Pike County School District / 15,505 |
| 95. | 2.98 | Coffee County School District / 17,272 |
| 96. | 2.98 | Baldwin County School District / 171,997 |
| 97. | 2.97 | Russellville City School District / 8,861 |
| 98. | 2.97 | Winston County School District / 15,727 |
| 99. | 2.97 | Crenshaw County School District / 13,687 |
| 100. | 2.96 | Oxford City School District / 20,176 |
| 101. | 2.95 | Colbert County School District / 24,413 |
| 102. | 2.95 | Etowah County School District / 58,902 |
| 103. | 2.95 | Choctaw County School District / 14,229 |
| 104. | 2.94 | Phenix City City School District / 30,260 |
| 105. | 2.94 | Dale County School District / 15,106 |
| 106. | 2.94 | Franklin County School District / 21,986 |
| 107. | 2.93 | Enterprise City School District / 24,326 |
| 108. | 2.93 | Scottsboro City School District / 14,731 |
| 109. | 2.92 | Monroe County School District / 22,790 |
| 110. | 2.91 | Geneva City School District / 6,553 |
| 111. | 2.91 | Jasper City School District / 13,960 |
| 112. | 2.91 | Auburn City School District / 55,439 |
| 113. | 2.90 | Lawrence County School District / 34,094 |
| 114. | 2.90 | Piedmont City School District / 6,553 |
| 115. | 2.88 | Tuscumbia City School District / 8,220 |
| 116. | 2.88 | Daleville City School District / 9,549 |
| 117. | 2.88 | Lamar County School District / 14,438 |
| 118. | 2.87 | Gadsden City School District / 36,893 |
| 119. | 2.86 | Sheffield City School District / 9,110 |
| 120. | 2.85 | Florence City School District / 37,370 |
| 121. | 2.84 | Fayette County School District / 15,919 |
| 122. | 2.83 | Jacksonville City School District / 9,707 |
| 123. | 2.83 | Leeds City School District / 10,795 |
| 124. | 2.83 | Attalla City School District / 6,584 |
| 125. | 2.81 | Anniston City School District / 23,550 |
| 126. | 2.79 | Coosa County School District / 10,777 |
| 127. | 2.79 | Ozark City School District / 16,502 |
| 128. | 2.77 | Troy City School District / 14,631 |
| 129. | 2.76 | Cherokee County School District / 24,427 |
| 130. | 2.67 | Marion County School District / 24,397 |
| 131. | 2.62 | Winfield City School District / 6,500 |
| 132. | 2.60 | Perry County School District / 10,689 |
| 133. | 2.54 | Clay County School District / 13,769 |
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.
*ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.
