| Rank | Portuguese as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 5.3% | Rosebud High School District / 482 |
| 2. | 3.1% | Alberton K-12 Schools / 1,286 |
| 3. | 2.0% | Swan Valley Elementary School District / 639 |
| 4. | 1.9% | Clancy Elementary School District / 2,935 |
| 5. | 1.7% | Hamilton K-12 Schools / 11,592 |
| 6. | 1.5% | Seeley Lake Elementary School District / 1,571 |
| 7. | 1.4% | Custer K-12 Schools / 411 |
| 8. | 1.4% | Jefferson High School District / 8,158 |
| 8. | 1.4% | West Valley Elementary School District / 3,967 |
| 10. | 1.4% | Boulder Elementary School District / 2,137 |
| 11. | 1.3% | Victor K-12 Schools / 3,538 |
| 12. | 1.2% | Denton Elementary School District / 469 |
| 13. | 1.2% | Denton High School District / 479 |
| 14. | 1.2% | Opheim K-12 Schools / 307 |
| 15. | 1.1% | Bigfork Elementary School District / 5,893 |
| 16. | 1.1% | Montana City Elementary School District / 2,853 |
| 17. | 1.0% | Three Forks High School District / 3,381 |
| 18. | 0.9% | Deer Lodge Elementary School District / 5,648 |
| 19. | 0.9% | Townsend K-12 Schools / 5,219 |
| 19. | 0.9% | Savage Elementary School District / 602 |
| 21. | 0.9% | Three Forks Elementary School District / 3,485 |
| 22. | 0.9% | Savage High School District / 620 |
| 22. | 0.9% | Hellgate Elementary School District / 13,024 |
| 24. | 0.9% | Helena Elementary School District / 51,357 |
| 25. | 0.9% | Shields Valley High School District / 1,705 |
| 25. | 0.9% | Shields Valley Elementary School District / 1,705 |
| 25. | 0.9% | Florence-Carlton K-12 Schools / 5,211 |
| 28. | 0.8% | Bigfork High School District / 7,593 |
| 29. | 0.8% | Troy Elementary School District / 2,629 |
| 29. | 0.8% | Rau Elementary School District / 391 |
| 31. | 0.8% | Helena High School District / 62,953 |
| 32. | 0.8% | Charlo Elementary School District / 1,248 |
| 33. | 0.7% | Ramsay Elementary School District / 1,114 |
| 33. | 0.7% | West Glacier Elementary School District / 570 |
| 35. | 0.7% | Trinity Elementary School District / 1,733 |
| 35. | 0.7% | Powell County High School District / 7,207 |
| 37. | 0.7% | Molt Elementary School District / 157 |
| 38. | 0.6% | Troy High School District / 3,396 |
| 39. | 0.6% | Cottonwood Elementary School District / 193 |
| 40. | 0.6% | Ennis K-12 Schools / 3,483 |
| 41. | 0.6% | Cascade Elementary School District / 1,907 |
| 42. | 0.5% | Charlo High School District / 1,834 |
| 42. | 0.5% | Conrad Elementary School District / 3,568 |
| 44. | 0.5% | Absarokee Elementary School District / 1,608 |
| 45. | 0.5% | Livingston Elementary School District / 10,129 |
| 45. | 0.5% | Conrad High School District / 3,800 |
| 45. | 0.5% | Sheridan Elementary School District / 1,378 |
| 48. | 0.5% | Moore High School District / 519 |
| 48. | 0.5% | Moore Elementary School District / 519 |
| 50. | 0.4% | Cascade High School District / 2,639 |
| 50. | 0.4% | Frontier Elementary School District / 594 |
| 52. | 0.4% | Scobey K-12 Schools / 1,813 |
| 52. | 0.4% | Sheridan High School District / 1,650 |
| 54. | 0.4% | East Helena Elementary School District / 9,282 |
| 54. | 0.4% | Park High School District / 12,483 |
| 56. | 0.4% | Corvallis K-12 Schools / 7,474 |
| 57. | 0.4% | Absarokee High School District / 2,076 |
| 57. | 0.4% | Belgrade Elementary School District / 20,497 |
| 57. | 0.4% | King Colony Elementary School District / 309 |
| 60. | 0.4% | Hardin High School District / 8,868 |
| 60. | 0.4% | Belgrade High School District / 20,718 |
| 60. | 0.4% | Dillon Elementary School District / 7,763 |
| 63. | 0.4% | Big Sandy Elementary School District / 1,336 |
| 63. | 0.4% | Anderson Elementary School District / 1,397 |
| 65. | 0.3% | Valier Elementary School District / 1,022 |
| 66. | 0.3% | Beaverhead County High School District / 8,772 |
| 66. | 0.3% | Havre Elementary School District / 12,161 |
| 68. | 0.3% | Hardin Elementary School District / 10,144 |
| 68. | 0.3% | Havre High School District / 12,531 |
| 68. | 0.3% | Fromberg K-12 Schools / 1,030 |
| 71. | 0.3% | Creston Elementary School District / 1,111 |
| 71. | 0.3% | Hobson K-12 Schools / 755 |
| 71. | 0.3% | Shelby Elementary School District / 3,793 |
| 74. | 0.3% | Missoula High School District / 102,467 |
| 75. | 0.3% | Shelby High School District / 4,093 |
| 75. | 0.3% | Valier High School District / 1,210 |
| 75. | 0.3% | Gardiner Elementary School District / 1,733 |
| 78. | 0.3% | Gardiner High School District / 1,776 |
| 78. | 0.3% | Cardwell Elementary School District / 435 |
| 78. | 0.3% | Fairview Elementary School District / 1,303 |
| 81. | 0.3% | Rapelje High School District / 455 |
| 81. | 0.3% | Fairview High School District / 1,345 |
| 81. | 0.3% | Twin Bridges K-12 Schools / 1,382 |
| 81. | 0.3% | Fair-Mont-Egan Elementary School District / 1,341 |
| 85. | 0.2% | Sun River Valley Elementary School District / 2,296 |
| 85. | 0.2% | Fergus High School District / 9,271 |
| 87. | 0.2% | Lewistown Elementary School District / 8,920 |
| 88. | 0.2% | Arlee Elementary School District / 2,479 |
| 88. | 0.2% | Name N/A / 891,341 |
| 88. | 0.2% | Arlee High School District / 2,479 |
| 88. | 0.2% | Columbus Elementary School District / 3,754 |
| 92. | 0.2% | Clinton Elementary School District / 2,448 |
| 93. | 0.2% | Canyon Creek Elementary School District / 2,315 |
| 93. | 0.2% | Monforton Elementary School District / 2,232 |
| 93. | 0.2% | Columbus High School District / 3,958 |
| 96. | 0.2% | Darby K-12 Schools / 3,554 |
| 96. | 0.2% | Big Sandy High School District / 2,612 |
| 96. | 0.2% | Bozeman Elementary School District / 53,316 |
| 96. | 0.2% | Manhattan Elementary School District / 2,390 |
| 96. | 0.2% | Flathead High School District / 58,126 |
| 101. | 0.2% | Bozeman High School District / 59,840 |
| 101. | 0.2% | Kalispell Elementary School District / 28,320 |
| 103. | 0.2% | Missoula Elementary School District / 70,909 |
| 103. | 0.2% | Simms High School District / 3,330 |
| 105. | 0.2% | Great Falls High School District / 72,595 |
| 105. | 0.2% | Great Falls Elementary School District / 72,487 |
| 105. | 0.2% | Superior K-12 Schools / 2,108 |
| 108. | 0.1% | Columbia Falls High School District / 15,228 |
| 108. | 0.1% | Centerville High School District / 1,615 |
| 108. | 0.1% | Centerville Elementary School District / 1,665 |
| 111. | 0.1% | Lockwood Elementary School District / 8,067 |
| 112. | 0.1% | Anaconda Elementary School District / 8,970 |
| 112. | 0.1% | Columbia Falls Elementary School District / 14,658 |
| 112. | 0.1% | Big Timber Elementary School District / 2,771 |
| 115. | 0.1% | Anaconda High School District / 9,046 |
| 116. | 0.1% | Sweet Grass County High School District / 3,511 |
| 116. | 0.1% | Manhattan High School District / 4,431 |
| 118. | 0.1% | Billings Elementary School District / 111,515 |
| 118. | 0.1% | Billings High School District / 133,015 |
| 120. | 0.1% | Miles City Elementary School District / 10,064 |
| 120. | 0.1% | Butte High School District / 34,435 |
| 122. | 0.1% | Wolf Point High School District / 4,735 |
| 122. | 0.1% | Custer County High School District / 11,869 |
| 124. | 0.0% | Butte Elementary School District / 33,054 |
| 124. | 0.0% | Sidney High School District / 8,438 |
| 126. | 0.0% | Whitehall High School District / 3,793 |
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.
