| Rank | Average Family Size ▼ | School District / Population |
| 1. | 3.56 | Fort Campbell Schools / 6,152 |
| 2. | 3.24 | Williamson County School District / 147,489 |
| 3. | 3.21 | Memphis City School District / 646,889 |
| 4. | 3.19 | Rutherford County School District / 153,649 |
| 5. | 3.18 | Tipton County School District / 61,081 |
| 6. | 3.17 | Shelby County School District / 280,755 |
| 7. | 3.16 | Lenoir City School District / 8,639 |
| 8. | 3.14 | Bedford County School District / 45,058 |
| 9. | 3.12 | Bells City School District / 3,710 |
| 9. | 3.12 | Crockett County School District in Bells / 3,710 |
| 11. | 3.09 | Montgomery County School District / 166,179 |
| 11. | 3.09 | Robertson County School District / 66,283 |
| 13. | 3.07 | Trousdale County School District / 7,870 |
| 14. | 3.06 | Cheatham County School District / 39,105 |
| 14. | 3.06 | Rutherford County School District in Murfreesboro / 108,955 |
| 14. | 3.06 | Murfreesboro City Elementary School District / 108,955 |
| 17. | 3.05 | Hardeman County School District / 27,253 |
| 17. | 3.05 | Lawrence County School District / 41,869 |
| 17. | 3.05 | Sumner County School District / 160,645 |
| 17. | 3.05 | Lauderdale County School District / 27,815 |
| 21. | 3.04 | Wilson County School District / 84,298 |
| 22. | 3.03 | Hickman County School District / 24,690 |
| 22. | 3.03 | Franklin Special School District / 35,693 |
| 22. | 3.03 | Williamson County School District in Franklin / 35,693 |
| 22. | 3.03 | Smith County School District / 19,166 |
| 22. | 3.03 | Haywood County School District / 18,787 |
| 22. | 3.03 | Gibson County School District / 18,363 |
| 22. | 3.03 | Scott County School District / 19,182 |
| 29. | 3.02 | Macon County School District / 22,248 |
| 29. | 3.02 | Nashville-Davidson County School District / 626,681 |
| 29. | 3.02 | Alamo Town School District / 4,226 |
| 29. | 3.02 | Dickson County School District / 49,666 |
| 29. | 3.02 | Fayette County School District / 38,413 |
| 29. | 3.02 | Crockett County School District in Alamo / 4,226 |
| 35. | 3.01 | Rhea County School District in Dayton / 7,191 |
| 35. | 3.01 | Wilson County School District in Lebanon / 29,695 |
| 35. | 3.01 | Marshall County School District / 30,617 |
| 35. | 3.01 | Coffee County School District / 25,438 |
| 35. | 3.01 | Dayton City Elementary School District / 7,191 |
| 35. | 3.01 | Lebanon Special School District / 29,695 |
| 41. | 3.00 | Jackson-Madison Consolidated School District / 98,294 |
| 41. | 3.00 | Richard City Special School District / 963 |
| 41. | 3.00 | Houston County School District / 8,426 |
| 41. | 3.00 | Maryville City School District / 27,451 |
| 41. | 3.00 | Grundy County School District / 13,703 |
| 46. | 2.99 | Bradley County School District / 57,678 |
| 46. | 2.99 | Chester County School District / 17,131 |
| 46. | 2.99 | Union County School District / 19,109 |
| 46. | 2.99 | Monroe County School District in Sweetwater / 11,998 |
| 46. | 2.99 | Morgan County School District / 21,987 |
| 46. | 2.99 | Milan City Special School District / 10,732 |
| 46. | 2.99 | Maury County School District / 80,956 |
| 46. | 2.99 | Sweetwater City School District / 11,998 |
| 54. | 2.98 | Dyersburg City School District / 17,133 |
| 54. | 2.98 | Cannon County School District / 13,801 |
| 54. | 2.98 | Bradford Special School District / 3,544 |
| 54. | 2.98 | Hamblen County School District / 62,544 |
| 54. | 2.98 | Perry County School District / 7,915 |
| 54. | 2.98 | McMinn County School District in Etowah / 3,490 |
| 54. | 2.98 | Coffee County School District in Manchester / 10,046 |
| 54. | 2.98 | Lewis County School District / 12,161 |
| 54. | 2.98 | Etowah City Elementary School District / 3,490 |
| 54. | 2.98 | Manchester City School District / 10,046 |
| 64. | 2.97 | Henderson County School District / 20,117 |
| 64. | 2.97 | Warren County School District / 39,839 |
| 64. | 2.97 | McNairy County School District / 26,075 |
| 64. | 2.97 | Cleveland City School District / 41,285 |
| 64. | 2.97 | Lincoln County School District / 26,534 |
| 64. | 2.97 | Dyer County School District / 21,202 |
| 70. | 2.96 | Fentress County School District / 17,959 |
| 70. | 2.96 | Polk County School District / 16,825 |
| 70. | 2.96 | Rhea County School District / 24,618 |
| 70. | 2.96 | Bledsoe County School District / 12,876 |
| 70. | 2.96 | Crockett County School District / 6,650 |
| 75. | 2.95 | Overton County School District / 22,083 |
| 75. | 2.95 | Oneida Special School District / 3,046 |
| 75. | 2.95 | DeKalb County School District / 18,723 |
| 75. | 2.95 | Hamilton County School District / 336,463 |
| 75. | 2.95 | McMinn County School District / 35,318 |
| 75. | 2.95 | Knox County School District / 432,226 |
| 81. | 2.94 | Anderson County School District / 39,017 |
| 81. | 2.94 | South Carroll Special School District / 2,542 |
| 81. | 2.94 | Sequatchie County School District / 14,112 |
| 81. | 2.94 | Humphreys County School District / 18,538 |
| 81. | 2.94 | Lake County School District / 7,832 |
| 81. | 2.94 | Humboldt City School District / 8,374 |
| 81. | 2.94 | Putnam County School District / 72,321 |
| 88. | 2.93 | Monroe County School District / 32,521 |
| 88. | 2.93 | Moore County School District / 6,362 |
| 88. | 2.93 | White County School District / 25,841 |
| 88. | 2.93 | Tullahoma City School District / 17,312 |
| 88. | 2.93 | Trenton Special School District / 8,670 |
| 88. | 2.93 | Sevier County School District / 89,889 |
| 94. | 2.92 | Marion County School District / 27,274 |
| 94. | 2.92 | Campbell County School District / 40,716 |
| 94. | 2.92 | Grainger County School District / 22,657 |
| 94. | 2.92 | Giles County School District / 29,485 |
| 94. | 2.92 | Lexington City Elementary School District / 7,652 |
| 94. | 2.92 | Stewart County School District / 13,324 |
| 94. | 2.92 | Henderson County School District in Lexington / 7,652 |
| 94. | 2.92 | Jefferson County School District / 51,407 |
| 102. | 2.91 | Athens City Elementary School District / 13,458 |
| 102. | 2.91 | McMinn County School District in Athens / 13,458 |
| 102. | 2.91 | Wayne County School District / 17,021 |
| 105. | 2.90 | Meigs County School District / 11,753 |
| 105. | 2.90 | West Carroll Special District / 7,163 |
| 105. | 2.90 | Union City School District / 10,832 |
| 105. | 2.90 | Franklin County School District / 41,052 |
| 109. | 2.89 | Obion County School District / 20,975 |
| 109. | 2.89 | Claiborne County School District / 32,213 |
| 109. | 2.89 | McKenzie Special School District / 7,421 |
| 109. | 2.89 | Huntingdon Special School District / 7,470 |
| 109. | 2.89 | Hancock County School District / 6,819 |
| 109. | 2.89 | Hollow Rock-Bruceton Special School District / 3,926 |
| 115. | 2.88 | Weakley County School District / 35,021 |
| 115. | 2.88 | Blount County School District / 87,224 |
| 115. | 2.88 | Roane County School District / 51,122 |
| 115. | 2.88 | Jackson County School District / 11,638 |
| 115. | 2.88 | Hardin County School District / 26,026 |
| 115. | 2.88 | Hawkins County School District / 49,559 |
| 121. | 2.87 | Greene County School District / 53,720 |
| 121. | 2.87 | Fayetteville City Elementary School District / 6,827 |
| 121. | 2.87 | Lincoln County School District in Fayetteville / 6,827 |
| 121. | 2.87 | Decatur County School District / 11,757 |
| 121. | 2.87 | Cocke County School District / 28,717 |
| 126. | 2.86 | Washington County School District / 63,291 |
| 126. | 2.86 | Greeneville City School District / 15,111 |
| 126. | 2.86 | Oak Ridge City School District / 29,330 |
| 126. | 2.86 | Cocke County School District in Newport / 6,945 |
| 126. | 2.86 | Newport City Elementary School District / 6,945 |
| 131. | 2.85 | Bristol City School District / 26,441 |
| 131. | 2.85 | Van Buren County School District / 5,548 |
| 131. | 2.85 | Sullivan County School District / 84,038 |
| 131. | 2.85 | Alcoa City School District / 8,335 |
| 131. | 2.85 | Johnson City School District / 59,688 |
| 131. | 2.85 | Paris City Special School District / 11,665 |
| 131. | 2.85 | Henry County School District in Paris / 11,665 |
| 138. | 2.84 | Clay County School District / 7,861 |
| 139. | 2.83 | Elizabethton City School District / 14,176 |
| 139. | 2.83 | Rogersville Town Elementary School District / 4,420 |
| 139. | 2.83 | Hawkins County School District in Rogersville / 4,420 |
| 139. | 2.83 | Kingsport City School District / 49,198 |
| 143. | 2.82 | Henry County School District / 20,665 |
| 144. | 2.81 | Unicoi County School District / 18,313 |
| 144. | 2.81 | Carter County School District / 43,248 |
| 144. | 2.81 | Benton County School District / 16,489 |
| 147. | 2.79 | Pickett County School District / 5,077 |
| 147. | 2.79 | Johnson County School District / 18,244 |
| 149. | 2.78 | Anderson County School District in Clinton / 9,841 |
| 149. | 2.78 | Clinton City Elementary School District / 9,841 |
| 151. | 2.76 | Loudon County School District / 39,917 |
| 152. | 2.72 | Cumberland County School District / 56,053 |
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.
