| Rank | Average Family Size ▼ | School District / Population |
| 1. | 3.91 | Silver Grove Independent School District / 1,856 |
| 2. | 3.79 | Fort Knox Dependent Schools / 12,204 |
| 3. | 3.78 | Fort Campbell Dependent Schools / 13,833 |
| 4. | 3.71 | Clay County School District / 21,833 |
| 5. | 3.66 | Owsley County School District / 4,764 |
| 6. | 3.59 | Robertson County School District / 2,251 |
| 7. | 3.54 | Harlan Independent School District / 3,318 |
| 8. | 3.48 | Gallatin County School District / 8,513 |
| 9. | 3.45 | Lawrence County School District / 15,889 |
| 10. | 3.44 | Menifee County School District / 6,331 |
| 11. | 3.44 | Wolfe County School District / 7,298 |
| 12. | 3.43 | Barbourville Independent School District / 2,672 |
| 13. | 3.43 | Walton-Verona Independent School District / 6,367 |
| 14. | 3.42 | Powell County School District / 12,638 |
| 15. | 3.42 | Anchorage Independent School District / 2,405 |
| 16. | 3.41 | Dayton Independent School District / 5,485 |
| 17. | 3.41 | Beechwood Independent School District / 6,291 |
| 18. | 3.40 | Bracken County School District / 6,954 |
| 19. | 3.38 | Lewis County School District / 13,889 |
| 20. | 3.38 | Clinton County School District / 10,244 |
| 21. | 3.37 | Mayfield Independent School District / 9,738 |
| 22. | 3.37 | Elliott County School District / 7,774 |
| 23. | 3.37 | Cumberland County School District / 6,857 |
| 24. | 3.34 | Knott County School District / 16,368 |
| 25. | 3.33 | Ohio County School District / 23,975 |
| 26. | 3.33 | Boone County School District / 113,039 |
| 27. | 3.33 | Bath County School District / 11,665 |
| 28. | 3.31 | Webster County School District / 13,618 |
| 29. | 3.31 | Harrison County School District / 18,781 |
| 30. | 3.30 | Meade County School District / 24,753 |
| 31. | 3.28 | Newport Independent School District / 15,613 |
| 32. | 3.28 | Larue County School District / 14,175 |
| 33. | 3.28 | Fleming County School District / 14,415 |
| 34. | 3.28 | Breathitt County School District / 12,662 |
| 35. | 3.27 | Hickman County School District / 4,869 |
| 36. | 3.26 | Kenton County School District / 98,785 |
| 37. | 3.26 | Breckinridge County School District / 18,558 |
| 38. | 3.25 | Raceland-Worthington Independent School District / 4,969 |
| 39. | 3.25 | Jackson Independent School District / 1,260 |
| 40. | 3.25 | Oldham County School District / 60,357 |
| 41. | 3.25 | Pendleton County School District / 14,771 |
| 42. | 3.24 | Letcher County School District / 20,896 |
| 43. | 3.24 | Grant County School District / 21,007 |
| 44. | 3.23 | Leslie County School District / 11,318 |
| 45. | 3.23 | Harlan County School District / 25,892 |
| 46. | 3.22 | Williamstown Independent School District / 3,676 |
| 47. | 3.22 | Bowling Green Independent School District / 26,705 |
| 48. | 3.22 | Campbellsville Independent School District / 8,017 |
| 49. | 3.22 | Magoffin County School District / 13,229 |
| 50. | 3.22 | McCreary County School District / 18,204 |
| 51. | 3.21 | Covington Independent School District / 32,954 |
| 52. | 3.21 | Grayson County School District / 25,772 |
| 53. | 3.21 | Lee County School District / 7,831 |
| 54. | 3.21 | Ludlow Independent School District / 4,851 |
| 55. | 3.21 | Carter County School District / 27,594 |
| 56. | 3.21 | Fort Thomas Independent School District / 16,223 |
| 57. | 3.20 | Augusta Independent School District / 1,534 |
| 58. | 3.19 | Knox County School District / 28,285 |
| 59. | 3.19 | Casey County School District / 15,984 |
| 60. | 3.19 | Garrard County School District / 16,892 |
| 61. | 3.18 | Campbell County School District / 41,444 |
| 62. | 3.18 | Whitley County School District / 21,042 |
| 63. | 3.18 | McLean County School District / 9,554 |
| 64. | 3.18 | Hart County School District / 15,708 |
| 65. | 3.18 | Caldwell County School District / 12,977 |
| 66. | 3.18 | Marion County School District / 19,872 |
| 67. | 3.18 | Rockcastle County School District / 17,090 |
| 68. | 3.17 | Cloverport Independent School District / 1,510 |
| 69. | 3.17 | Montgomery County School District / 26,517 |
| 70. | 3.17 | Perry County School District / 23,812 |
| 71. | 3.17 | Bell County School District / 15,904 |
| 72. | 3.17 | Livingston County School District / 9,479 |
| 73. | 3.17 | Eminence Independent School District / 2,767 |
| 74. | 3.15 | Todd County School District / 12,472 |
| 75. | 3.15 | Simpson County School District / 17,323 |
| 76. | 3.15 | Mercer County School District / 18,616 |
| 77. | 3.15 | Owensboro Independent School District / 28,941 |
| 78. | 3.14 | Mason County School District / 17,495 |
| 79. | 3.14 | Monticello Independent School District / 3,873 |
| 80. | 3.14 | Metcalfe County School District / 10,074 |
| 81. | 3.14 | Bullitt County School District / 74,431 |
| 82. | 3.14 | Corbin Independent School District / 10,070 |
| 83. | 3.13 | East Bernstadt Independent School District / 1,285 |
| 83. | 3.13 | Laurel County School District for East Bernstadt ISD / 1,285 |
| 85. | 3.13 | Rowan County School District / 23,351 |
| 86. | 3.13 | Daviess County School District / 67,770 |
| 87. | 3.13 | Nelson County School District / 30,609 |
| 88. | 3.12 | Morgan County School District / 13,898 |
| 89. | 3.12 | Crittenden County School District / 9,321 |
| 90. | 3.12 | Jefferson County School District / 738,880 |
| 91. | 3.12 | Estill County School District / 14,647 |
| 92. | 3.12 | Shelby County School District / 42,286 |
| 93. | 3.12 | Scott County School District / 47,211 |
| 94. | 3.12 | Anderson County School District / 21,442 |
| 95. | 3.11 | Nicholas County School District / 7,092 |
| 96. | 3.11 | Greenup County School District / 19,274 |
| 97. | 3.11 | Laurel County School District / 57,606 |
| 98. | 3.11 | Lincoln County School District / 24,671 |
| 99. | 3.11 | Warren County School District / 87,082 |
| 100. | 3.11 | Russell Independent School District / 12,679 |
| 101. | 3.11 | Dawson Springs Independent School District / 2,523 |
| 102. | 3.11 | Woodford County School District / 24,847 |
| 103. | 3.11 | Taylor County School District / 16,497 |
| 104. | 3.11 | Monroe County School District / 10,925 |
| 105. | 3.11 | Bellevue Independent School District / 5,838 |
| 106. | 3.10 | Christian County School District / 59,889 |
| 107. | 3.10 | Middlesboro Independent School District / 10,354 |
| 108. | 3.10 | Adair County School District / 18,651 |
| 109. | 3.10 | Madison County School District / 76,112 |
| 110. | 3.09 | Hopkins County School District / 44,368 |
| 111. | 3.09 | Spencer County School District / 17,135 |
| 112. | 3.08 | Bardstown Independent School District / 12,891 |
| 113. | 3.08 | Barren County School District / 27,275 |
| 114. | 3.08 | Bourbon County School District / 14,638 |
| 115. | 3.08 | Hancock County School District / 8,588 |
| 116. | 3.08 | Jessamine County School District / 48,591 |
| 117. | 3.07 | Butler County School District / 12,748 |
| 118. | 3.07 | Henderson County School District / 46,254 |
| 119. | 3.07 | Williamsburg Independent School District / 5,561 |
| 120. | 3.07 | Hardin County School District / 84,690 |
| 121. | 3.07 | Fairview Independent School District / 3,661 |
| 122. | 3.07 | Henry County School District / 12,661 |
| 123. | 3.07 | Union County School District / 14,992 |
| 124. | 3.06 | Martin County School District / 12,934 |
| 125. | 3.06 | Erlanger-Elsmere Independent School District / 17,045 |
| 126. | 3.06 | Logan County School District / 20,871 |
| 127. | 3.05 | Allen County School District / 20,007 |
| 128. | 3.05 | Elizabethtown Independent School District / 10,874 |
| 129. | 3.04 | Owen County School District / 10,870 |
| 130. | 3.03 | Paris Independent School District / 5,366 |
| 131. | 3.03 | Floyd County School District / 39,454 |
| 132. | 3.02 | Ashland Independent School District / 21,579 |
| 133. | 3.02 | Russell County School District / 17,562 |
| 134. | 3.02 | Marshall County School District / 31,393 |
| 135. | 3.01 | Wayne County School District / 16,946 |
| 136. | 3.01 | Berea Independent School District / 7,062 |
| 137. | 3.01 | Muhlenberg County School District / 31,399 |
| 138. | 3.01 | Elizabethtown Independent School District for West Point ISD / 971 |
| 138. | 3.01 | West Point Independent School District / 971 |
| 140. | 3.01 | Trimble County School District / 8,829 |
| 141. | 3.01 | Name N/A / 4,140 |
| 142. | 3.00 | Jenkins Independent School District / 3,440 |
| 143. | 3.00 | Fayette County School District / 296,766 |
| 144. | 3.00 | Green County School District / 11,309 |
| 145. | 2.99 | Boyd County School District / 24,118 |
| 146. | 2.99 | Washington County School District / 11,701 |
| 147. | 2.99 | Edmonson County School District / 12,141 |
| 148. | 2.99 | Johnson County School District / 19,884 |
| 149. | 2.99 | Glasgow Independent School District / 12,223 |
| 150. | 2.99 | Pineville Independent School District / 2,355 |
| 151. | 2.98 | McCracken County School District / 45,401 |
| 152. | 2.97 | Graves County School District / 27,462 |
| 153. | 2.97 | Franklin County School District / 45,082 |
| 154. | 2.96 | Carroll County School District / 10,851 |
| 155. | 2.95 | Boyle County School District / 14,715 |
| 156. | 2.95 | Paducah Independent School District / 20,157 |
| 157. | 2.93 | Calloway County School District / 26,448 |
| 158. | 2.93 | Pikeville Independent School District / 6,559 |
| 159. | 2.93 | Pulaski County School District for Science Hill ISD / 1,884 |
| 159. | 2.93 | Science Hill Independent School District / 1,884 |
| 161. | 2.92 | Pike County School District / 58,328 |
| 162. | 2.92 | Pulaski County School District / 51,752 |
| 163. | 2.92 | Hazard Independent School District / 4,805 |
| 164. | 2.91 | Burgin Independent School District / 2,667 |
| 165. | 2.89 | Clark County School District / 35,555 |
| 166. | 2.89 | Ballard County School District / 8,268 |
| 167. | 2.89 | Danville Independent School District / 13,730 |
| 168. | 2.88 | Caverna Independent School District / 5,301 |
| 169. | 2.87 | Southgate Independent School District / 3,660 |
| 170. | 2.86 | Carlisle County School District / 5,081 |
| 171. | 2.86 | Jackson County School District / 13,475 |
| 172. | 2.84 | Russellville Independent School District / 5,915 |
| 173. | 2.83 | Murray Independent School District / 10,750 |
| 174. | 2.82 | Fulton Independent School District / 2,854 |
| 175. | 2.80 | Trigg County School District / 14,282 |
| 176. | 2.77 | Somerset Independent School District / 9,409 |
| 177. | 2.76 | Frankfort Independent School District / 4,317 |
| 178. | 2.68 | Lyon County School District / 8,336 |
| 179. | 2.67 | Fulton County School District / 3,904 |
| 180. | 2.59 | Paintsville Independent School District / 3,455 |
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.
