| Rank | Median Age ▲ | School District / Population |
| 1. | 22.50 | Fort Campbell Schools / 6,103 |
| 2. | 29.30 | Rutherford County School District in Murfreesboro / 109,164 |
| 2. | 29.30 | Murfreesboro City Elementary School District / 109,164 |
| 4. | 30.70 | Montgomery County School District / 167,035 |
| 5. | 32.90 | Lenoir City School District / 8,634 |
| 6. | 33.10 | Memphis City School District / 651,050 |
| 7. | 33.20 | Cleveland City School District / 41,461 |
| 8. | 33.80 | Rhea County School District in Dayton / 7,217 |
| 8. | 33.80 | Oneida Special School District / 3,117 |
| 8. | 33.80 | Dayton City Elementary School District / 7,217 |
| 11. | 33.90 | Nashville-Davidson County School District / 629,113 |
| 12. | 34.60 | Rutherford County School District / 154,651 |
| 13. | 34.70 | Name N/A / 277,334 |
| 14. | 35.20 | Bells City School District / 3,727 |
| 14. | 35.20 | Crockett County School District in Bells / 3,727 |
| 16. | 35.90 | Putnam County School District / 72,172 |
| 17. | 36.20 | Lauderdale County School District / 27,772 |
| 18. | 36.50 | Bedford County School District / 45,060 |
| 19. | 36.70 | Coffee County School District in Manchester / 9,956 |
| 19. | 36.70 | Manchester City School District / 9,956 |
| 21. | 36.80 | Jackson-Madison Consolidated School District / 97,976 |
| 21. | 36.80 | Weakley County School District / 34,802 |
| 23. | 37.00 | Athens City Elementary School District / 13,492 |
| 23. | 37.00 | McMinn County School District in Athens / 13,492 |
| 25. | 37.10 | Milan City Special School District / 10,209 |
| 26. | 37.20 | Franklin Special School District / 36,588 |
| 26. | 37.20 | Williamson County School District in Franklin / 36,588 |
| 26. | 37.20 | Knox County School District / 433,207 |
| 26. | 37.20 | Gibson County School District / 18,750 |
| 26. | 37.20 | Union City School District / 10,835 |
| 26. | 37.20 | Tipton County School District / 61,038 |
| 32. | 37.40 | Johnson City School District / 59,839 |
| 32. | 37.40 | Shelby County School District / 278,387 |
| 34. | 37.50 | Wilson County School District in Lebanon / 30,046 |
| 34. | 37.50 | Lebanon Special School District / 30,046 |
| 36. | 37.60 | Chester County School District / 17,043 |
| 37. | 37.70 | Robertson County School District / 66,143 |
| 38. | 37.90 | Alcoa City School District / 8,321 |
| 38. | 37.90 | Maury County School District / 80,965 |
| 40. | 38.00 | Trousdale County School District / 7,827 |
| 41. | 38.30 | Macon County School District / 22,265 |
| 42. | 38.40 | Dickson County School District / 49,704 |
| 42. | 38.40 | Scott County School District / 19,079 |
| 44. | 38.50 | Bradford Special School District / 3,445 |
| 45. | 38.60 | Coffee County School District / 25,332 |
| 45. | 38.60 | Dyersburg City School District / 17,132 |
| 47. | 38.70 | Williamson County School District / 147,637 |
| 47. | 38.70 | Sumner County School District / 161,206 |
| 47. | 38.70 | Warren County School District / 39,767 |
| 50. | 38.90 | Hawkins County School District in Rogersville / 4,414 |
| 50. | 38.90 | Rogersville Town Elementary School District / 4,414 |
| 50. | 38.90 | McKenzie Special School District / 7,114 |
| 53. | 39.10 | Hamblen County School District / 62,528 |
| 53. | 39.10 | Hamilton County School District / 337,023 |
| 55. | 39.30 | Henderson County School District / 20,132 |
| 55. | 39.30 | Greeneville City School District / 15,217 |
| 55. | 39.30 | Marshall County School District / 30,585 |
| 58. | 39.40 | Maryville City School District / 27,433 |
| 59. | 39.50 | Cheatham County School District / 39,103 |
| 60. | 39.70 | Hardeman County School District / 27,193 |
| 60. | 39.70 | Lake County School District / 7,780 |
| 62. | 39.80 | Lawrence County School District / 41,779 |
| 63. | 39.90 | Haywood County School District / 18,673 |
| 64. | 40.00 | Morgan County School District / 21,882 |
| 64. | 40.00 | Wilson County School District / 84,572 |
| 66. | 40.10 | Union County School District / 19,179 |
| 67. | 40.20 | Smith County School District / 19,157 |
| 67. | 40.20 | Trenton Special School District / 8,783 |
| 67. | 40.20 | DeKalb County School District / 18,770 |
| 70. | 40.30 | Richard City Special School District / 854 |
| 70. | 40.30 | Dyer County School District / 21,102 |
| 72. | 40.40 | Henderson County School District in Lexington / 7,703 |
| 72. | 40.40 | Hickman County School District / 24,481 |
| 72. | 40.40 | Lexington City Elementary School District / 7,703 |
| 72. | 40.40 | Cannon County School District / 13,797 |
| 72. | 40.40 | Elizabethton City School District / 14,228 |
| 77. | 40.50 | Jefferson County School District / 51,541 |
| 78. | 40.60 | Sequatchie County School District / 14,173 |
| 79. | 40.70 | Rhea County School District / 24,600 |
| 79. | 40.70 | Humphreys County School District / 18,428 |
| 81. | 40.80 | Monroe County School District / 32,539 |
| 82. | 41.00 | Washington County School District / 63,001 |
| 82. | 41.00 | Crockett County School District / 6,540 |
| 82. | 41.00 | Bradley County School District / 57,768 |
| 85. | 41.10 | Lewis County School District / 12,050 |
| 86. | 41.20 | Sevier County School District / 90,218 |
| 87. | 41.30 | Overton County School District / 22,040 |
| 87. | 41.30 | Houston County School District / 8,375 |
| 89. | 41.40 | Tullahoma City School District / 17,565 |
| 89. | 41.40 | White County School District / 25,863 |
| 91. | 41.50 | Fayetteville City Elementary School District / 6,887 |
| 91. | 41.50 | Claiborne County School District / 32,025 |
| 91. | 41.50 | Clinton City Elementary School District / 9,827 |
| 91. | 41.50 | Lincoln County School District in Fayetteville / 6,887 |
| 91. | 41.50 | Anderson County School District in Clinton / 9,827 |
| 96. | 41.60 | Franklin County School District / 40,972 |
| 97. | 41.70 | Cocke County School District in Newport / 6,968 |
| 97. | 41.70 | Bristol City School District / 26,482 |
| 97. | 41.70 | Newport City Elementary School District / 6,968 |
| 97. | 41.70 | Wayne County School District / 17,015 |
| 101. | 41.80 | Fayette County School District / 38,370 |
| 101. | 41.80 | Campbell County School District / 40,629 |
| 101. | 41.80 | Grundy County School District / 13,751 |
| 104. | 42.00 | McNairy County School District / 26,001 |
| 104. | 42.00 | Lincoln County School District / 26,408 |
| 106. | 42.10 | Grainger County School District / 22,613 |
| 107. | 42.20 | Paris City Special School District / 11,397 |
| 107. | 42.20 | Henry County School District in Paris / 11,397 |
| 107. | 42.20 | Giles County School District / 29,439 |
| 107. | 42.20 | Bledsoe County School District / 12,898 |
| 111. | 42.30 | Hancock County School District / 6,759 |
| 112. | 42.40 | Hawkins County School District / 49,442 |
| 112. | 42.40 | McMinn County School District / 35,326 |
| 112. | 42.40 | Marion County School District / 27,330 |
| 112. | 42.40 | Fentress County School District / 17,945 |
| 116. | 42.50 | Blount County School District / 87,332 |
| 116. | 42.50 | Anderson County School District / 39,017 |
| 116. | 42.50 | Polk County School District / 16,756 |
| 119. | 42.60 | Etowah City Elementary School District / 3,507 |
| 119. | 42.60 | McMinn County School District in Etowah / 3,507 |
| 121. | 42.80 | Stewart County School District / 13,262 |
| 121. | 42.80 | Hollow Rock-Bruceton Special School District / 3,812 |
| 123. | 42.90 | Hardin County School District / 25,987 |
| 124. | 43.00 | Oak Ridge City School District / 29,235 |
| 124. | 43.00 | Carter County School District / 43,303 |
| 126. | 43.10 | Perry County School District / 7,856 |
| 126. | 43.10 | Cocke County School District / 28,663 |
| 128. | 43.20 | Meigs County School District / 11,696 |
| 128. | 43.20 | Moore County School District / 6,349 |
| 128. | 43.20 | Obion County School District / 20,886 |
| 131. | 43.30 | Greene County School District / 53,538 |
| 131. | 43.30 | Sweetwater City School District / 12,141 |
| 131. | 43.30 | Monroe County School District in Sweetwater / 12,141 |
| 134. | 43.40 | South Carroll Special School District / 2,826 |
| 135. | 43.50 | Huntingdon Special School District / 7,696 |
| 135. | 43.50 | Johnson County School District / 18,199 |
| 135. | 43.50 | Van Buren County School District / 5,552 |
| 135. | 43.50 | Kingsport City School District / 51,026 |
| 139. | 43.90 | West Carroll Special District / 7,038 |
| 140. | 44.00 | Sullivan County School District / 82,036 |
| 141. | 44.20 | Alamo Town School District / 4,300 |
| 141. | 44.20 | Crockett County School District in Alamo / 4,300 |
| 143. | 44.30 | Decatur County School District / 11,732 |
| 144. | 44.50 | Jackson County School District / 11,526 |
| 145. | 44.70 | Unicoi County School District / 18,287 |
| 146. | 44.80 | Roane County School District / 50,987 |
| 147. | 45.10 | Clay County School District / 7,842 |
| 148. | 45.30 | Henry County School District / 20,874 |
| 149. | 46.00 | Benton County School District / 16,420 |
| 150. | 47.30 | Pickett County School District / 5,108 |
| 151. | 48.30 | Cumberland County School District / 56,144 |
| 152. | 48.80 | Loudon County School District / 39,952 |
| 153. | 49.70 | Humboldt City School District / 8,407 |
Please note that we only rank locations with 'Median Age' data. The rank above might not be a complete list. Locations without 'Median Age' 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.
