| Rank | Irish as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 20.2% | Jackson Parish School District / 15,111 |
| 2. | 18.6% | Winn Parish School District / 15,531 |
| 3. | 18.3% | Catahoula Parish School District / 10,424 |
| 4. | 18.2% | La Salle Parish School District / 13,973 |
| 5. | 17.2% | Livingston Parish School District / 116,476 |
| 6. | 16.1% | Vernon Parish School District / 47,475 |
| 7. | 16.0% | Beauregard Parish School District / 34,828 |
| 8. | 16.0% | St. Tammany Parish School District / 225,533 |
| 9. | 15.6% | Grant Parish School District / 19,785 |
| 10. | 15.0% | Caldwell Parish School District / 10,400 |
| 11. | 14.9% | Washington Parish School District / 32,146 |
| 12. | 14.8% | Central Community School District / 28,383 |
| 13. | 14.4% | Red River Parish School District / 9,117 |
| 14. | 13.7% | Webster Parish School District / 40,719 |
| 15. | 13.6% | Bossier Parish School District / 108,722 |
| 16. | 13.4% | Ouachita Parish School District / 98,343 |
| 17. | 13.4% | Sabine Parish School District / 23,629 |
| 18. | 13.2% | Franklin Parish School District / 19,996 |
| 19. | 12.9% | Cameron Parish School District / 7,588 |
| 20. | 12.4% | Bienville Parish School District / 14,848 |
| 21. | 12.3% | Allen Parish School District / 25,528 |
| 22. | 12.0% | Concordia Parish School District / 18,979 |
| 23. | 11.8% | Lincoln Parish School District / 42,801 |
| 24. | 11.7% | Natchitoches Parish School District / 38,976 |
| 25. | 11.6% | Tangipahoa Parish School District / 114,229 |
| 26. | 11.0% | Rapides Parish School District / 132,128 |
| 27. | 10.8% | Calcasieu Parish School District / 185,017 |
| 28. | 10.4% | Union Parish School District / 22,712 |
| 29. | 10.2% | Bogalusa City School District / 12,698 |
| 30. | 9.7% | Ascension Parish School District / 98,471 |
| 30. | 9.7% | West Carroll Parish School District / 11,520 |
| 32. | 9.7% | Morehouse Parish School District / 28,761 |
| 33. | 9.7% | Jefferson Parish School District / 440,134 |
| 34. | 9.5% | East Feliciana Parish School District / 20,871 |
| 35. | 9.4% | St. Bernard Parish School District / 38,241 |
| 36. | 9.1% | Caddo Parish School District / 252,467 |
| 37. | 9.1% | Plaquemines Parish School District / 22,655 |
| 38. | 9.0% | De Soto Parish School District / 26,247 |
| 39. | 8.9% | Richland Parish School District / 20,415 |
| 40. | 8.9% | St. Helena Parish School District / 10,505 |
| 41. | 8.6% | St. Charles Parish School District / 51,410 |
| 42. | 8.6% | Zachary Community School District / 19,778 |
| 43. | 8.5% | Claiborne Parish School District / 16,311 |
| 44. | 8.5% | West Baton Rouge Parish School District / 22,323 |
| 45. | 7.5% | East Baton Rouge Parish School District / 366,158 |
| 46. | 7.0% | Tensas Parish School District / 5,798 |
| 47. | 6.8% | Avoyelles Parish School District / 42,184 |
| 48. | 6.8% | West Feliciana Parish School District / 15,134 |
| 48. | 6.8% | Jefferson Davis Parish School District / 31,061 |
| 50. | 6.6% | Iberville Parish School District / 32,677 |
| 51. | 6.4% | Madison Parish School District / 11,790 |
| 52. | 6.4% | Monroe City School District / 51,682 |
| 53. | 6.4% | Acadia Parish School District / 59,616 |
| 54. | 6.3% | Lafayette Parish School District / 204,963 |
| 55. | 5.7% | Orleans Parish School District / 328,669 |
| 56. | 5.6% | Baker City School District / 13,501 |
| 57. | 4.7% | Terrebonne Parish School District / 108,277 |
| 58. | 4.7% | Evangeline Parish School District / 35,490 |
| 59. | 4.6% | St. Mary Parish School District / 51,085 |
| 60. | 4.6% | Iberia Parish School District / 74,602 |
| 61. | 4.5% | St. John the Baptist Parish School District / 47,146 |
| 62. | 4.3% | Pointe Coupee Parish School District / 22,326 |
| 63. | 3.8% | Lafourche Parish School District / 92,852 |
| 64. | 3.7% | Vermilion Parish School District / 55,612 |
| 65. | 3.2% | St. Martin Parish School District / 51,429 |
| 65. | 3.2% | St. Landry Parish School District / 90,983 |
| 67. | 2.7% | Assumption Parish School District / 22,986 |
| 68. | 2.1% | East Carroll Parish School District / 8,265 |
| 69. | 2.0% | St. James Parish School District / 21,056 |
Please note that we only rank locations with 'Irish as First Ancestry Population Percentage' data. The rank above might not be a complete list. Locations without 'Irish 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.
