| Rank | Portuguese as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 0.5% | Washington Parish School District / 34,652 |
| 2. | 0.5% | Bienville Parish School District / 14,122 |
| 3. | 0.4% | St. Tammany Parish School District / 239,814 |
| 4. | 0.3% | Zachary Community School District / 22,403 |
| 5. | 0.2% | Lafayette Parish School District / 228,084 |
| 5. | 0.2% | Vernon Parish School District / 52,844 |
| 7. | 0.2% | Union Parish School District / 22,623 |
| 8. | 0.2% | St. Mary Parish School District / 53,784 |
| 9. | 0.2% | Calcasieu Parish School District / 194,943 |
| 10. | 0.1% | Tangipahoa Parish School District / 124,125 |
| 11. | 0.1% | Rapides Parish School District / 132,199 |
| 11. | 0.1% | Monroe City School District / 49,455 |
| 13. | 0.1% | Webster Parish School District / 40,890 |
| 14. | 0.1% | Beauregard Parish School District / 36,109 |
| 15. | 0.1% | Vermilion Parish School District / 58,784 |
| 15. | 0.1% | Jackson Parish School District / 16,199 |
| 15. | 0.1% | Ascension Parish School District / 112,308 |
| 15. | 0.1% | Jefferson Parish School District / 434,528 |
| 19. | 0.1% | Orleans Parish School District / 368,471 |
| 20. | 0.1% | Lafourche Parish School District / 97,235 |
| 20. | 0.1% | Terrebonne Parish School District / 112,167 |
| 20. | 0.1% | Iberia Parish School District / 73,735 |
| 23. | 0.1% | St. Charles Parish School District / 52,616 |
| 23. | 0.1% | Bossier Parish School District / 121,918 |
| 23. | 0.1% | Central Community School District / 29,021 |
| 23. | 0.1% | Caddo Parish School District / 255,529 |
| 27. | 0.1% | St. Bernard Parish School District / 41,114 |
| 27. | 0.1% | Jefferson Davis Parish School District / 31,492 |
| 27. | 0.1% | East Baton Rouge Parish School District / 378,390 |
| 30. | 0.0% | St. John the Baptist Parish School District / 44,570 |
| 30. | 0.0% | Lincoln Parish School District / 47,243 |
| 32. | 0.0% | Livingston Parish School District / 132,160 |
| 33. | 0.0% | St. Landry Parish School District / 83,518 |
| 33. | 0.0% | Winn Parish School District / 15,000 |
| 33. | 0.0% | East Feliciana Parish School District / 19,964 |
| 36. | 0.0% | Iberville Parish School District / 33,375 |
| 36. | 0.0% | Avoyelles Parish School District / 41,604 |
Please note that we only rank locations with 'Portuguese as First Ancestry Population Percentage' data. The rank above might not be a complete list. Locations without 'Portuguese as First Ancestry Population Percentage' data are not listed.
