| Rank | Average Household Size ▼ | School District / Population |
| 1. | 2.89 | Zachary Community School District / 21,259 |
| 2. | 2.85 | St. John the Baptist Parish School District / 45,924 |
| 3. | 2.84 | St. James Parish School District / 22,102 |
| 4. | 2.82 | Ascension Parish School District / 107,215 |
| 4. | 2.82 | Plaquemines Parish School District / 23,042 |
| 6. | 2.81 | St. Charles Parish School District / 52,780 |
| 7. | 2.77 | Baker City School District / 13,870 |
| 8. | 2.76 | Livingston Parish School District / 128,026 |
| 9. | 2.75 | Terrebonne Parish School District / 111,860 |
| 10. | 2.70 | Iberia Parish School District / 73,240 |
| 11. | 2.69 | St. Bernard Parish School District / 35,897 |
| 12. | 2.68 | St. Martin Parish School District / 52,160 |
| 13. | 2.67 | West Baton Rouge Parish School District / 23,788 |
| 13. | 2.67 | Lafourche Parish School District / 96,318 |
| 15. | 2.66 | Assumption Parish School District / 23,421 |
| 15. | 2.66 | Cameron Parish School District / 6,839 |
| 15. | 2.66 | Acadia Parish School District / 61,773 |
| 15. | 2.66 | Iberville Parish School District / 33,387 |
| 15. | 2.66 | St. Tammany Parish School District / 233,740 |
| 20. | 2.64 | Jefferson Davis Parish School District / 31,594 |
| 20. | 2.64 | Central Community School District / 28,356 |
| 22. | 2.63 | Vermilion Parish School District / 57,999 |
| 22. | 2.63 | St. Mary Parish School District / 54,650 |
| 24. | 2.62 | East Carroll Parish School District / 7,759 |
| 25. | 2.61 | Madison Parish School District / 12,093 |
| 25. | 2.61 | Beauregard Parish School District / 35,654 |
| 25. | 2.61 | Vernon Parish School District / 52,334 |
| 25. | 2.61 | Richland Parish School District / 20,725 |
| 29. | 2.60 | Tangipahoa Parish School District / 121,097 |
| 29. | 2.60 | West Feliciana Parish School District / 15,625 |
| 31. | 2.58 | Grant Parish School District / 22,309 |
| 31. | 2.58 | St. Landry Parish School District / 83,384 |
| 33. | 2.57 | Red River Parish School District / 9,091 |
| 34. | 2.56 | St. Helena Parish School District / 11,203 |
| 35. | 2.55 | Calcasieu Parish School District / 192,768 |
| 35. | 2.55 | East Feliciana Parish School District / 20,267 |
| 35. | 2.55 | Washington Parish School District / 34,936 |
| 35. | 2.55 | Ouachita Parish School District / 104,905 |
| 39. | 2.54 | Concordia Parish School District / 20,822 |
| 39. | 2.54 | Evangeline Parish School District / 33,984 |
| 39. | 2.54 | Bossier Parish School District / 116,979 |
| 42. | 2.53 | Allen Parish School District / 25,764 |
| 42. | 2.53 | Franklin Parish School District / 20,767 |
| 42. | 2.53 | Jefferson Parish School District / 432,552 |
| 45. | 2.52 | Rapides Parish School District / 131,613 |
| 46. | 2.51 | West Carroll Parish School District / 11,604 |
| 46. | 2.51 | Avoyelles Parish School District / 42,073 |
| 46. | 2.51 | Morehouse Parish School District / 27,979 |
| 49. | 2.50 | De Soto Parish School District / 26,656 |
| 49. | 2.50 | La Salle Parish School District / 14,890 |
| 49. | 2.50 | Pointe Coupee Parish School District / 22,802 |
| 52. | 2.49 | Catahoula Parish School District / 10,407 |
| 52. | 2.49 | Lafayette Parish School District / 221,578 |
| 54. | 2.48 | Winn Parish School District / 15,313 |
| 55. | 2.47 | Sabine Parish School District / 24,233 |
| 55. | 2.47 | Monroe City School District / 48,815 |
| 57. | 2.46 | East Baton Rouge Parish School District / 376,686 |
| 58. | 2.45 | Caldwell Parish School District / 10,132 |
| 59. | 2.44 | Union Parish School District / 22,721 |
| 59. | 2.44 | Caddo Parish School District / 254,969 |
| 61. | 2.43 | Bogalusa City School District / 12,232 |
| 61. | 2.43 | Jackson Parish School District / 16,274 |
| 63. | 2.42 | Webster Parish School District / 41,207 |
| 64. | 2.41 | Tensas Parish School District / 5,252 |
| 65. | 2.40 | Bienville Parish School District / 14,353 |
| 66. | 2.39 | Natchitoches Parish School District / 39,566 |
| 67. | 2.38 | Lincoln Parish School District / 46,735 |
| 68. | 2.37 | Claiborne Parish School District / 17,195 |
| 69. | 2.33 | Orleans Parish School District / 343,829 |
Please note that we only rank locations with 'Average Household Size' data. The rank above might not be a complete list. Locations without 'Average Household Size' data are not listed.
