| Rank | Welsh as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 1.1% | Vernon Parish School District / 52,844 |
| 2. | 0.7% | Lincoln Parish School District / 47,243 |
| 3. | 0.7% | Bossier Parish School District / 121,918 |
| 4. | 0.7% | Bogalusa City School District / 12,071 |
| 5. | 0.6% | Bienville Parish School District / 14,122 |
| 6. | 0.6% | St. Tammany Parish School District / 239,814 |
| 7. | 0.6% | Union Parish School District / 22,623 |
| 8. | 0.5% | La Salle Parish School District / 14,874 |
| 9. | 0.5% | Plaquemines Parish School District / 23,545 |
| 10. | 0.5% | East Feliciana Parish School District / 19,964 |
| 10. | 0.5% | Ouachita Parish School District / 105,830 |
| 12. | 0.4% | Grant Parish School District / 22,363 |
| 13. | 0.4% | Orleans Parish School District / 368,471 |
| 14. | 0.4% | De Soto Parish School District / 26,968 |
| 15. | 0.4% | Central Community School District / 29,021 |
| 15. | 0.4% | Allen Parish School District / 25,691 |
| 17. | 0.4% | Rapides Parish School District / 132,199 |
| 18. | 0.3% | Calcasieu Parish School District / 194,943 |
| 19. | 0.3% | East Baton Rouge Parish School District / 378,390 |
| 20. | 0.3% | Livingston Parish School District / 132,160 |
| 20. | 0.3% | Webster Parish School District / 40,890 |
| 20. | 0.3% | Tangipahoa Parish School District / 124,125 |
| 23. | 0.3% | Washington Parish School District / 34,652 |
| 23. | 0.3% | Ascension Parish School District / 112,308 |
| 25. | 0.3% | St. Charles Parish School District / 52,616 |
| 26. | 0.3% | Beauregard Parish School District / 36,109 |
| 27. | 0.3% | Lafayette Parish School District / 228,084 |
| 28. | 0.3% | West Carroll Parish School District / 11,522 |
| 29. | 0.2% | Caddo Parish School District / 255,529 |
| 29. | 0.2% | Natchitoches Parish School District / 39,359 |
| 31. | 0.2% | Monroe City School District / 49,455 |
| 32. | 0.2% | Sabine Parish School District / 24,286 |
| 32. | 0.2% | Claiborne Parish School District / 16,817 |
| 34. | 0.2% | Winn Parish School District / 15,000 |
| 34. | 0.2% | Jefferson Parish School District / 434,528 |
| 36. | 0.2% | Zachary Community School District / 22,403 |
| 36. | 0.2% | Red River Parish School District / 8,937 |
| 38. | 0.2% | Jefferson Davis Parish School District / 31,492 |
| 38. | 0.2% | Franklin Parish School District / 20,645 |
| 38. | 0.2% | West Feliciana Parish School District / 15,485 |
| 41. | 0.1% | Terrebonne Parish School District / 112,167 |
| 42. | 0.1% | Acadia Parish School District / 62,031 |
| 42. | 0.1% | Caldwell Parish School District / 10,008 |
| 44. | 0.1% | Tensas Parish School District / 5,008 |
| 45. | 0.1% | Pointe Coupee Parish School District / 22,631 |
| 46. | 0.1% | Assumption Parish School District / 23,170 |
| 47. | 0.1% | St. Bernard Parish School District / 41,114 |
| 47. | 0.1% | St. Mary Parish School District / 53,784 |
| 49. | 0.1% | East Carroll Parish School District / 7,602 |
| 50. | 0.0% | Avoyelles Parish School District / 41,604 |
| 50. | 0.0% | Morehouse Parish School District / 27,319 |
| 50. | 0.0% | Madison Parish School District / 12,008 |
| 53. | 0.0% | St. Helena Parish School District / 10,937 |
| 53. | 0.0% | Vermilion Parish School District / 58,784 |
| 53. | 0.0% | West Baton Rouge Parish School District / 24,347 |
| 53. | 0.0% | St. John the Baptist Parish School District / 44,570 |
| 57. | 0.0% | St. Landry Parish School District / 83,518 |
| 57. | 0.0% | St. Martin Parish School District / 52,823 |
| 57. | 0.0% | Lafourche Parish School District / 97,235 |
| 60. | 0.0% | Iberville Parish School District / 33,375 |
| 60. | 0.0% | Jackson Parish School District / 16,199 |
| 60. | 0.0% | Iberia Parish School District / 73,735 |
Please note that we only rank locations with 'Welsh as First Ancestry Population Percentage' data. The rank above might not be a complete list. Locations without 'Welsh as First Ancestry Population Percentage' data are not listed.
