| Rank | Welsh as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 0.7% | St. Tammany Parish School District / 228,894 |
| 2. | 0.7% | De Soto Parish School District / 26,465 |
| 3. | 0.6% | Lincoln Parish School District / 45,797 |
| 4. | 0.6% | Winn Parish School District / 15,477 |
| 5. | 0.5% | Jackson Parish School District / 16,078 |
| 6. | 0.5% | Bossier Parish School District / 113,837 |
| 7. | 0.5% | Caddo Parish School District / 253,048 |
| 8. | 0.5% | St. Charles Parish School District / 52,645 |
| 9. | 0.5% | Vernon Parish School District / 50,451 |
| 10. | 0.4% | Sabine Parish School District / 24,119 |
| 10. | 0.4% | Natchitoches Parish School District / 39,274 |
| 12. | 0.4% | Livingston Parish School District / 122,798 |
| 13. | 0.4% | Zachary Community School District / 20,753 |
| 14. | 0.3% | East Baton Rouge Parish School District / 372,692 |
| 15. | 0.3% | Cameron Parish School District / 7,280 |
| 16. | 0.3% | Beauregard Parish School District / 35,000 |
| 16. | 0.3% | Concordia Parish School District / 20,502 |
| 18. | 0.3% | St. James Parish School District / 22,096 |
| 19. | 0.3% | East Feliciana Parish School District / 20,417 |
| 19. | 0.3% | Ascension Parish School District / 102,501 |
| 19. | 0.3% | Union Parish School District / 22,750 |
| 19. | 0.3% | West Feliciana Parish School District / 15,681 |
| 23. | 0.3% | Calcasieu Parish School District / 189,134 |
| 23. | 0.3% | Webster Parish School District / 41,238 |
| 23. | 0.3% | Plaquemines Parish School District / 22,710 |
| 23. | 0.3% | Orleans Parish School District / 295,285 |
| 27. | 0.3% | Ouachita Parish School District / 102,935 |
| 28. | 0.2% | Rapides Parish School District / 130,800 |
| 29. | 0.2% | Central Community School District / 28,526 |
| 29. | 0.2% | Monroe City School District / 49,272 |
| 31. | 0.2% | Lafayette Parish School District / 215,581 |
| 31. | 0.2% | Jefferson Davis Parish School District / 31,500 |
| 33. | 0.2% | Jefferson Parish School District / 431,019 |
| 33. | 0.2% | Tangipahoa Parish School District / 118,190 |
| 35. | 0.2% | Allen Parish School District / 25,816 |
| 35. | 0.2% | Bienville Parish School District / 14,546 |
| 35. | 0.2% | Lafourche Parish School District / 95,428 |
| 38. | 0.2% | Washington Parish School District / 34,161 |
| 38. | 0.2% | Grant Parish School District / 21,675 |
| 40. | 0.1% | St. Landry Parish School District / 84,309 |
| 41. | 0.1% | Assumption Parish School District / 23,487 |
| 42. | 0.1% | Vermilion Parish School District / 57,280 |
| 43. | 0.1% | St. John the Baptist Parish School District / 46,728 |
| 44. | 0.1% | Terrebonne Parish School District / 111,131 |
| 44. | 0.1% | Baker City School District / 13,844 |
| 44. | 0.1% | Morehouse Parish School District / 28,388 |
| 44. | 0.1% | Avoyelles Parish School District / 42,013 |
| 44. | 0.1% | Iberia Parish School District / 73,395 |
| 49. | 0.1% | St. Mary Parish School District / 54,348 |
| 49. | 0.1% | Iberville Parish School District / 33,513 |
| 49. | 0.1% | Acadia Parish School District / 61,139 |
| 52. | 0.1% | Richland Parish School District / 20,692 |
| 53. | 0.0% | St. Martin Parish School District / 51,721 |
| 54. | 0.0% | West Baton Rouge Parish School District / 23,274 |
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.
*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.
