| Rank | Portuguese as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 0.5% | Vernon Parish School District / 50,451 |
| 2. | 0.4% | Zachary Community School District / 20,753 |
| 3. | 0.3% | Terrebonne Parish School District / 111,131 |
| 4. | 0.3% | Union Parish School District / 22,750 |
| 4. | 0.3% | Beauregard Parish School District / 35,000 |
| 6. | 0.3% | Bienville Parish School District / 14,546 |
| 7. | 0.2% | St. Tammany Parish School District / 228,894 |
| 8. | 0.2% | Ascension Parish School District / 102,501 |
| 9. | 0.2% | Jefferson Parish School District / 431,019 |
| 10. | 0.2% | Lafayette Parish School District / 215,581 |
| 10. | 0.2% | Calcasieu Parish School District / 189,134 |
| 12. | 0.2% | St. Mary Parish School District / 54,348 |
| 12. | 0.2% | St. James Parish School District / 22,096 |
| 14. | 0.2% | De Soto Parish School District / 26,465 |
| 15. | 0.2% | Assumption Parish School District / 23,487 |
| 16. | 0.2% | Jackson Parish School District / 16,078 |
| 16. | 0.2% | Sabine Parish School District / 24,119 |
| 18. | 0.1% | Red River Parish School District / 9,181 |
| 18. | 0.1% | Lafourche Parish School District / 95,428 |
| 20. | 0.1% | Tangipahoa Parish School District / 118,190 |
| 21. | 0.1% | Bossier Parish School District / 113,837 |
| 21. | 0.1% | St. John the Baptist Parish School District / 46,728 |
| 23. | 0.1% | East Baton Rouge Parish School District / 372,692 |
| 24. | 0.1% | Ouachita Parish School District / 102,935 |
| 24. | 0.1% | Orleans Parish School District / 295,285 |
| 26. | 0.1% | Acadia Parish School District / 61,139 |
| 26. | 0.1% | West Baton Rouge Parish School District / 23,274 |
| 26. | 0.1% | Caddo Parish School District / 253,048 |
| 26. | 0.1% | Rapides Parish School District / 130,800 |
| 26. | 0.1% | Caldwell Parish School District / 10,188 |
| 26. | 0.1% | Livingston Parish School District / 122,798 |
| 32. | 0.1% | Lincoln Parish School District / 45,797 |
| 32. | 0.1% | St. Charles Parish School District / 52,645 |
| 32. | 0.1% | Iberia Parish School District / 73,395 |
| 32. | 0.1% | Claiborne Parish School District / 17,160 |
| 32. | 0.1% | Richland Parish School District / 20,692 |
| 37. | 0.1% | Grant Parish School District / 21,675 |
| 37. | 0.1% | Central Community School District / 28,526 |
| 39. | 0.1% | Winn Parish School District / 15,477 |
| 39. | 0.1% | Vermilion Parish School District / 57,280 |
| 41. | 0.0% | Allen Parish School District / 25,816 |
| 41. | 0.0% | Natchitoches Parish School District / 39,274 |
| 43. | 0.0% | Washington Parish School District / 34,161 |
| 44. | 0.0% | Monroe City School District / 49,272 |
| 45. | 0.0% | Webster Parish School District / 41,238 |
| 46. | 0.0% | St. Landry Parish School District / 84,309 |
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.
*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.
