| Rank | Median Age ▲ | School District / Population |
| 1. | 24.40 | Lincoln Parish School District / 42,801 |
| 2. | 29.00 | Vernon Parish School District / 47,475 |
| 3. | 30.60 | Natchitoches Parish School District / 38,976 |
| 3. | 30.60 | East Baton Rouge Parish School District / 366,158 |
| 5. | 30.70 | Monroe City School District / 51,682 |
| 6. | 32.60 | East Carroll Parish School District / 8,265 |
| 6. | 32.60 | Tangipahoa Parish School District / 114,229 |
| 8. | 33.10 | Lafayette Parish School District / 204,963 |
| 9. | 33.70 | Ascension Parish School District / 98,471 |
| 10. | 34.00 | St. John the Baptist Parish School District / 47,146 |
| 10. | 34.00 | Livingston Parish School District / 116,476 |
| 10. | 34.00 | Bossier Parish School District / 108,722 |
| 10. | 34.00 | Madison Parish School District / 11,790 |
| 14. | 34.20 | Baker City School District / 13,501 |
| 15. | 34.40 | Terrebonne Parish School District / 108,277 |
| 16. | 34.60 | Ouachita Parish School District / 98,343 |
| 16. | 34.60 | Evangeline Parish School District / 35,490 |
| 16. | 34.60 | Iberia Parish School District / 74,602 |
| 19. | 34.80 | Acadia Parish School District / 59,616 |
| 20. | 34.90 | St. Martin Parish School District / 51,429 |
| 21. | 35.20 | West Baton Rouge Parish School District / 22,323 |
| 21. | 35.20 | Allen Parish School District / 25,528 |
| 23. | 35.30 | Calcasieu Parish School District / 185,017 |
| 24. | 35.40 | Bogalusa City School District / 12,698 |
| 25. | 35.50 | St. Bernard Parish School District / 38,241 |
| 26. | 35.60 | Caddo Parish School District / 252,467 |
| 27. | 35.70 | Jefferson Davis Parish School District / 31,061 |
| 27. | 35.70 | St. Landry Parish School District / 90,983 |
| 27. | 35.70 | Red River Parish School District / 9,117 |
| 30. | 36.10 | Lafourche Parish School District / 92,852 |
| 31. | 36.20 | Vermilion Parish School District / 55,612 |
| 32. | 36.30 | St. Mary Parish School District / 51,085 |
| 32. | 36.30 | Plaquemines Parish School District / 22,655 |
| 32. | 36.30 | Iberville Parish School District / 32,677 |
| 32. | 36.30 | Beauregard Parish School District / 34,828 |
| 36. | 36.40 | Rapides Parish School District / 132,128 |
| 37. | 36.50 | St. Charles Parish School District / 51,410 |
| 37. | 36.50 | Zachary Community School District / 19,778 |
| 39. | 36.60 | Avoyelles Parish School District / 42,184 |
| 40. | 36.70 | Orleans Parish School District / 328,669 |
| 41. | 37.20 | Richland Parish School District / 20,415 |
| 42. | 37.30 | Washington Parish School District / 32,146 |
| 43. | 37.40 | Grant Parish School District / 19,785 |
| 44. | 37.70 | St. James Parish School District / 21,056 |
| 44. | 37.70 | Catahoula Parish School District / 10,424 |
| 44. | 37.70 | Morehouse Parish School District / 28,761 |
| 44. | 37.70 | La Salle Parish School District / 13,973 |
| 48. | 37.90 | Caldwell Parish School District / 10,400 |
| 49. | 38.10 | St. Tammany Parish School District / 225,533 |
| 50. | 38.20 | St. Helena Parish School District / 10,505 |
| 51. | 38.30 | Jefferson Parish School District / 440,134 |
| 51. | 38.30 | Assumption Parish School District / 22,986 |
| 51. | 38.30 | Franklin Parish School District / 19,996 |
| 54. | 38.50 | Winn Parish School District / 15,531 |
| 55. | 38.60 | De Soto Parish School District / 26,247 |
| 56. | 38.90 | Tensas Parish School District / 5,798 |
| 57. | 39.20 | East Feliciana Parish School District / 20,871 |
| 58. | 39.30 | Concordia Parish School District / 18,979 |
| 59. | 39.50 | Webster Parish School District / 40,719 |
| 60. | 39.60 | Claiborne Parish School District / 16,311 |
| 61. | 39.70 | West Carroll Parish School District / 11,520 |
| 62. | 39.80 | West Feliciana Parish School District / 15,134 |
| 63. | 40.20 | Cameron Parish School District / 7,588 |
| 63. | 40.20 | Sabine Parish School District / 23,629 |
| 65. | 40.30 | Central Community School District / 28,383 |
| 66. | 40.40 | Union Parish School District / 22,712 |
| 66. | 40.40 | Pointe Coupee Parish School District / 22,326 |
| 68. | 40.70 | Jackson Parish School District / 15,111 |
| 69. | 41.00 | Bienville Parish School District / 14,848 |
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.
