| Rank | Average Family Size ▼ | School District / Population |
| 1. | 3.59 | Claiborne Parish School District / 16,817 |
| 2. | 3.56 | Baker City School District / 13,784 |
| 3. | 3.55 | Bogalusa City School District / 12,071 |
| 4. | 3.54 | West Feliciana Parish School District / 15,485 |
| 5. | 3.53 | Madison Parish School District / 12,008 |
| 6. | 3.51 | St. Bernard Parish School District / 41,114 |
| 7. | 3.47 | Monroe City School District / 49,455 |
| 8. | 3.44 | Rapides Parish School District / 132,199 |
| 9. | 3.44 | St. Martin Parish School District / 52,823 |
| 10. | 3.43 | St. John the Baptist Parish School District / 44,570 |
| 11. | 3.41 | Terrebonne Parish School District / 112,167 |
| 12. | 3.39 | Orleans Parish School District / 368,471 |
| 13. | 3.39 | St. Landry Parish School District / 83,518 |
| 14. | 3.39 | Allen Parish School District / 25,691 |
| 15. | 3.37 | Iberia Parish School District / 73,735 |
| 16. | 3.37 | Grant Parish School District / 22,363 |
| 17. | 3.36 | Zachary Community School District / 22,403 |
| 18. | 3.36 | St. Charles Parish School District / 52,616 |
| 19. | 3.36 | Tensas Parish School District / 5,008 |
| 20. | 3.35 | Caddo Parish School District / 255,529 |
| 21. | 3.35 | Vernon Parish School District / 52,844 |
| 22. | 3.35 | East Baton Rouge Parish School District / 378,390 |
| 23. | 3.34 | Natchitoches Parish School District / 39,359 |
| 24. | 3.33 | Acadia Parish School District / 62,031 |
| 25. | 3.33 | Tangipahoa Parish School District / 124,125 |
| 26. | 3.33 | Jefferson Parish School District / 434,528 |
| 27. | 3.33 | Bossier Parish School District / 121,918 |
| 28. | 3.32 | Jefferson Davis Parish School District / 31,492 |
| 29. | 3.32 | Livingston Parish School District / 132,160 |
| 30. | 3.32 | Morehouse Parish School District / 27,319 |
| 31. | 3.31 | Ascension Parish School District / 112,308 |
| 32. | 3.31 | Evangeline Parish School District / 33,778 |
| 33. | 3.29 | Sabine Parish School District / 24,286 |
| 34. | 3.29 | Lafayette Parish School District / 228,084 |
| 35. | 3.28 | Lincoln Parish School District / 47,243 |
| 36. | 3.27 | Vermilion Parish School District / 58,784 |
| 37. | 3.27 | Red River Parish School District / 8,937 |
| 38. | 3.27 | St. Helena Parish School District / 10,937 |
| 39. | 3.25 | St. Mary Parish School District / 53,784 |
| 40. | 3.25 | Webster Parish School District / 40,890 |
| 41. | 3.24 | St. Tammany Parish School District / 239,814 |
| 42. | 3.23 | Lafourche Parish School District / 97,235 |
| 43. | 3.23 | Iberville Parish School District / 33,375 |
| 44. | 3.23 | Pointe Coupee Parish School District / 22,631 |
| 45. | 3.23 | St. James Parish School District / 21,782 |
| 46. | 3.21 | Caldwell Parish School District / 10,008 |
| 47. | 3.21 | De Soto Parish School District / 26,968 |
| 48. | 3.21 | Assumption Parish School District / 23,170 |
| 49. | 3.20 | Franklin Parish School District / 20,645 |
| 50. | 3.19 | Washington Parish School District / 34,652 |
| 51. | 3.19 | East Carroll Parish School District / 7,602 |
| 52. | 3.19 | Beauregard Parish School District / 36,109 |
| 53. | 3.18 | West Carroll Parish School District / 11,522 |
| 54. | 3.17 | West Baton Rouge Parish School District / 24,347 |
| 55. | 3.17 | Calcasieu Parish School District / 194,943 |
| 56. | 3.16 | Plaquemines Parish School District / 23,545 |
| 57. | 3.16 | Central Community School District / 29,021 |
| 58. | 3.15 | Union Parish School District / 22,623 |
| 59. | 3.15 | Ouachita Parish School District / 105,830 |
| 60. | 3.14 | Avoyelles Parish School District / 41,604 |
| 61. | 3.10 | Richland Parish School District / 20,845 |
| 62. | 3.06 | Catahoula Parish School District / 10,273 |
| 63. | 3.06 | East Feliciana Parish School District / 19,964 |
| 64. | 3.05 | Bienville Parish School District / 14,122 |
| 65. | 3.03 | Cameron Parish School District / 6,713 |
| 66. | 3.01 | Jackson Parish School District / 16,199 |
| 67. | 3.00 | Concordia Parish School District / 20,609 |
| 68. | 2.98 | Winn Parish School District / 15,000 |
| 69. | 2.89 | La Salle Parish School District / 14,874 |
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.
