| Rank | Median Age ▲ | School District / Population |
| 1. | 27.60 | Lincoln Parish School District / 45,797 |
| 2. | 29.80 | Vernon Parish School District / 50,451 |
| 3. | 31.50 | Monroe City School District / 49,272 |
| 4. | 31.90 | East Baton Rouge Parish School District / 372,692 |
| 5. | 32.50 | Natchitoches Parish School District / 39,274 |
| 6. | 33.30 | Tangipahoa Parish School District / 118,190 |
| 6. | 33.30 | East Carroll Parish School District / 7,964 |
| 8. | 33.40 | Lafayette Parish School District / 215,581 |
| 9. | 34.20 | Ascension Parish School District / 102,501 |
| 9. | 34.20 | Livingston Parish School District / 122,798 |
| 11. | 34.30 | Baker City School District / 13,844 |
| 12. | 34.60 | Madison Parish School District / 12,286 |
| 12. | 34.60 | St. Bernard Parish School District / 27,739 |
| 12. | 34.60 | Bossier Parish School District / 113,837 |
| 15. | 34.80 | St. John the Baptist Parish School District / 46,728 |
| 16. | 35.00 | Zachary Community School District / 20,753 |
| 17. | 35.10 | Terrebonne Parish School District / 111,131 |
| 18. | 35.30 | Iberia Parish School District / 73,395 |
| 19. | 35.40 | West Baton Rouge Parish School District / 23,274 |
| 19. | 35.40 | Acadia Parish School District / 61,139 |
| 19. | 35.40 | Ouachita Parish School District / 102,935 |
| 19. | 35.40 | Evangeline Parish School District / 34,419 |
| 23. | 35.80 | Plaquemines Parish School District / 22,710 |
| 23. | 35.80 | Orleans Parish School District / 295,285 |
| 25. | 35.90 | St. Martin Parish School District / 51,721 |
| 25. | 35.90 | Calcasieu Parish School District / 189,134 |
| 27. | 36.30 | Vermilion Parish School District / 57,280 |
| 27. | 36.30 | Lafourche Parish School District / 95,428 |
| 29. | 36.40 | Caddo Parish School District / 253,048 |
| 30. | 36.50 | Beauregard Parish School District / 35,000 |
| 31. | 36.60 | St. Charles Parish School District / 52,645 |
| 31. | 36.60 | Grant Parish School District / 21,675 |
| 33. | 36.80 | St. Landry Parish School District / 84,309 |
| 34. | 37.00 | Rapides Parish School District / 130,800 |
| 35. | 37.10 | Jefferson Davis Parish School District / 31,500 |
| 36. | 37.20 | Allen Parish School District / 25,816 |
| 36. | 37.20 | St. Mary Parish School District / 54,348 |
| 36. | 37.20 | Iberville Parish School District / 33,513 |
| 39. | 37.30 | Red River Parish School District / 9,181 |
| 40. | 37.60 | Catahoula Parish School District / 10,465 |
| 41. | 37.70 | Morehouse Parish School District / 28,388 |
| 42. | 37.80 | La Salle Parish School District / 14,680 |
| 43. | 37.90 | Cameron Parish School District / 7,280 |
| 44. | 38.10 | Washington Parish School District / 34,161 |
| 45. | 38.20 | Richland Parish School District / 20,692 |
| 45. | 38.20 | West Carroll Parish School District / 11,689 |
| 47. | 38.30 | Avoyelles Parish School District / 42,013 |
| 47. | 38.30 | St. Helena Parish School District / 11,125 |
| 49. | 38.40 | Assumption Parish School District / 23,487 |
| 49. | 38.40 | Concordia Parish School District / 20,502 |
| 51. | 38.60 | Franklin Parish School District / 20,727 |
| 51. | 38.60 | Jefferson Parish School District / 431,019 |
| 51. | 38.60 | St. James Parish School District / 22,096 |
| 54. | 38.80 | St. Tammany Parish School District / 228,894 |
| 55. | 39.10 | Winn Parish School District / 15,477 |
| 56. | 39.30 | Caldwell Parish School District / 10,188 |
| 57. | 39.50 | De Soto Parish School District / 26,465 |
| 57. | 39.50 | Jackson Parish School District / 16,078 |
| 59. | 39.70 | East Feliciana Parish School District / 20,417 |
| 60. | 39.80 | Webster Parish School District / 41,238 |
| 60. | 39.80 | Tensas Parish School District / 5,430 |
| 62. | 40.00 | Bogalusa City School District / 12,417 |
| 63. | 40.20 | Central Community School District / 28,526 |
| 64. | 40.40 | Claiborne Parish School District / 17,160 |
| 65. | 40.50 | Union Parish School District / 22,750 |
| 66. | 40.60 | Sabine Parish School District / 24,119 |
| 67. | 40.90 | Bienville Parish School District / 14,546 |
| 67. | 40.90 | West Feliciana Parish School District / 15,681 |
| 69. | 41.60 | Pointe Coupee Parish School District / 22,837 |
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.
