| Rank | Median Age ▲ | School District / Population |
| 1. | 21.90 | Beaufort Marine Corps Air Station School District / 1,027 |
| 1. | 21.90 | Beaufort County School District within Beaufort Marine Corps Air Station / 1,027 |
| 3. | 22.10 | Richland County School District 2 within Fort Jackson / 14,309 |
| 3. | 22.10 | Fort Jackson Schools / 14,309 |
| 5. | 31.80 | Clarendon School District 3 / 6,808 |
| 6. | 31.90 | Richland School District 1 / 201,528 |
| 7. | 34.30 | Sumter School District 2 / 57,252 |
| 8. | 34.50 | Berkeley County School District / 177,843 |
| 9. | 34.60 | Jasper County School District / 24,777 |
| 10. | 34.80 | Dorchester School District 2 / 119,266 |
| 11. | 34.90 | Dillon School District 2 / 18,998 |
| 11. | 34.90 | Pickens County School District / 119,224 |
| 11. | 34.90 | Richland School District 2 / 126,150 |
| 14. | 35.30 | Bamberg School District 2 / 7,177 |
| 15. | 35.60 | Florence School District 5 / 5,943 |
| 15. | 35.60 | York School District 3 / 110,728 |
| 17. | 35.70 | Orangeburg School District 5 / 51,950 |
| 18. | 35.90 | Charleston County School District / 350,209 |
| 19. | 36.10 | Lexington School District 4 / 18,306 |
| 20. | 36.20 | Spartanburg School District 2 / 58,308 |
| 21. | 36.50 | Lexington School District 1 / 121,030 |
| 22. | 36.90 | Spartanburg School District 6 / 58,687 |
| 22. | 36.90 | Sumter School District 17 / 50,204 |
| 24. | 37.00 | Greenwood School District 50 / 58,872 |
| 25. | 37.10 | Greenville County School District / 466,178 |
| 26. | 37.30 | Lexington School District 2 / 63,322 |
| 27. | 37.40 | York School District 4 / 49,865 |
| 27. | 37.40 | Dillon School District 3 / 7,602 |
| 27. | 37.40 | Spartanburg School District 5 / 41,867 |
| 30. | 37.50 | Florence School District 3 / 20,584 |
| 30. | 37.50 | Florence School District 1 / 96,463 |
| 32. | 37.60 | Barnwell School District 45 / 12,382 |
| 33. | 37.90 | Hampton School District 2 / 7,387 |
| 34. | 38.20 | Marion School District 1 / 15,337 |
| 34. | 38.20 | Cherokee County School District / 53,383 |
| 36. | 38.50 | Florence School District 4 / 6,768 |
| 36. | 38.50 | Orangeburg School District 4 / 20,430 |
| 38. | 38.70 | Anderson School District 5 / 78,592 |
| 38. | 38.70 | Hampton School District 1 / 13,703 |
| 40. | 38.80 | York School District 1 / 31,112 |
| 40. | 38.80 | Marlboro County School District / 28,933 |
| 40. | 38.80 | Allendale County School District / 10,419 |
| 43. | 38.90 | Lee County School District / 19,220 |
| 43. | 38.90 | Spartanburg School District 7 / 52,943 |
| 45. | 39.00 | Anderson School District 1 / 49,808 |
| 46. | 39.30 | Chesterfield County School District / 46,734 |
| 46. | 39.30 | Saluda County School District / 15,200 |
| 48. | 39.50 | Lexington School District 5 / 91,018 |
| 49. | 39.60 | Laurens School District 56 / 20,726 |
| 49. | 39.60 | Darlington County School District / 68,681 |
| 51. | 39.70 | Lancaster County School District / 76,652 |
| 52. | 39.80 | Spartanburg School District 4 / 18,439 |
| 53. | 39.90 | Anderson School District 3 / 15,156 |
| 53. | 39.90 | Newberry County School District / 37,508 |
| 55. | 40.00 | Aiken County School District / 162,758 |
| 56. | 40.10 | York School District 2 / 34,368 |
| 56. | 40.10 | Barnwell School District 19 / 5,096 |
| 58. | 40.20 | Williamsburg County School District / 34,423 |
| 58. | 40.20 | Kershaw County School District / 61,697 |
| 60. | 40.30 | Edgefield County School District / 26,985 |
| 60. | 40.30 | Chester County School District / 33,140 |
| 62. | 40.50 | Laurens School District 55 / 37,250 |
| 63. | 40.60 | Marion School District 7 / 6,077 |
| 64. | 40.70 | Florence School District 2 / 7,127 |
| 64. | 40.70 | Colleton County School District / 38,892 |
| 66. | 40.80 | Beaufort County School District / 161,206 |
| 66. | 40.80 | Barnwell School District 29 / 5,135 |
| 66. | 40.80 | Spartanburg School District 3 / 16,629 |
| 69. | 41.10 | Dorchester School District 4 / 17,289 |
| 69. | 41.10 | Horry County School District / 269,291 |
| 71. | 41.20 | Clarendon School District 2 / 19,243 |
| 72. | 41.50 | Abbeville County School District / 24,326 |
| 72. | 41.50 | Anderson School District 2 / 22,394 |
| 72. | 41.50 | Bamberg School District 1 / 8,810 |
| 75. | 41.90 | Lexington School District 3 / 13,248 |
| 75. | 41.90 | Union County School District / 28,961 |
| 77. | 42.10 | Marion School District 2 / 11,648 |
| 77. | 42.10 | Dillon School District 1 / 5,462 |
| 79. | 42.20 | Greenwood School District 51 / 6,893 |
| 80. | 42.40 | Fairfield County School District / 23,956 |
| 81. | 42.60 | Greenwood School District 52 / 7,366 |
| 82. | 42.70 | Spartanburg School District 1 / 30,439 |
| 83. | 43.40 | Calhoun County School District / 15,175 |
| 83. | 43.40 | Oconee County School District / 74,273 |
| 85. | 43.50 | Orangeburg School District 3 / 20,121 |
| 86. | 43.60 | Anderson School District 4 / 21,359 |
| 87. | 45.40 | Georgetown County School District / 60,158 |
| 88. | 49.40 | Clarendon School District 1 / 8,920 |
| 89. | 50.00 | McCormick County School District / 10,233 |
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.
