| Rank | Portuguese as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 6.4% | Benton Lake Elementary School District / 47 |
| 2. | 4.2% | Golden Ridge Elementary School District / 180 |
| 3. | 2.9% | Cottonwood Elementary School District / 236 |
| 4. | 2.7% | Lolo Elementary School District / 3,934 |
| 5. | 2.4% | Lone Rock Elementary School District / 3,252 |
| 6. | 1.8% | Eureka Elementary School District / 4,157 |
| 7. | 1.7% | Joliet Elementary School District / 1,624 |
| 8. | 1.7% | Manhattan Elementary School District / 2,523 |
| 9. | 1.6% | Joliet High School District / 2,178 |
| 10. | 1.6% | Lincoln County High School District / 5,421 |
| 10. | 1.6% | White Sulphur Springs Elementary School District / 1,482 |
| 12. | 1.6% | Plains Elementary School District / 2,960 |
| 13. | 1.5% | Fair-Mont-Egan Elementary School District / 1,130 |
| 14. | 1.5% | White Sulphur Springs High School District / 1,628 |
| 15. | 1.5% | Florence-Carlton K-12 Schools / 5,688 |
| 16. | 1.4% | Plains High School District / 3,352 |
| 17. | 1.4% | Ennis K-12 Schools / 2,563 |
| 18. | 1.4% | Luther Elementary School District / 441 |
| 19. | 1.4% | Big Sandy Elementary School District / 1,121 |
| 19. | 1.4% | West Valley Elementary School District / 2,822 |
| 21. | 1.3% | Reedpoint High School District / 501 |
| 22. | 1.2% | Libby K-12 Schools / 10,055 |
| 23. | 1.2% | Reedpoint Elementary School District / 549 |
| 24. | 1.2% | Fortine Elementary School District / 604 |
| 25. | 1.1% | West Glacier Elementary School District / 411 |
| 26. | 1.0% | Manhattan High School District / 3,940 |
| 27. | 1.0% | Lima K-12 Schools / 409 |
| 28. | 1.0% | Stevensville High School District / 9,879 |
| 29. | 0.9% | Name N/A / 227 |
| 29. | 0.9% | Bridger K-12 Schools / 1,205 |
| 31. | 0.9% | Winnett K-12 Schools / 512 |
| 31. | 0.9% | Canyon Creek Elementary School District / 1,807 |
| 33. | 0.9% | Livingston Elementary School District / 10,306 |
| 34. | 0.8% | Moore Elementary School District / 387 |
| 34. | 0.8% | Swan Valley Elementary School District / 403 |
| 34. | 0.8% | Moore High School District / 387 |
| 34. | 0.8% | Evergreen Elementary School District / 5,740 |
| 38. | 0.8% | Philipsburg K-12 Schools / 1,673 |
| 39. | 0.7% | Trego Elementary School District / 660 |
| 40. | 0.7% | Big Sandy High School District / 2,034 |
| 40. | 0.7% | Alberton K-12 Schools / 1,100 |
| 42. | 0.7% | Ronan Elementary School District / 8,304 |
| 42. | 0.7% | Ronan High School District / 8,304 |
| 44. | 0.7% | Belgrade Elementary School District / 19,573 |
| 45. | 0.7% | Belgrade High School District / 19,773 |
| 45. | 0.7% | Park High School District / 12,686 |
| 47. | 0.6% | Sun River Valley Elementary School District / 2,060 |
| 48. | 0.6% | Helena Elementary School District / 48,201 |
| 49. | 0.6% | Helena High School District / 58,464 |
| 50. | 0.5% | Fort Benton High School District / 1,994 |
| 51. | 0.5% | Wolf Creek Elementary School District / 407 |
| 52. | 0.5% | Whitefish Elementary School District / 14,029 |
| 52. | 0.5% | Choteau Elementary School District / 2,612 |
| 52. | 0.5% | Kila Elementary School District / 1,231 |
| 55. | 0.5% | Whitefish High School District / 14,617 |
| 55. | 0.5% | Cardwell Elementary School District / 481 |
| 57. | 0.5% | St. Ignatius K-12 Schools / 3,138 |
| 57. | 0.5% | Roundup Elementary School District / 3,797 |
| 59. | 0.5% | Fort Benton Elementary School District / 1,699 |
| 60. | 0.4% | Roundup High School District / 3,958 |
| 61. | 0.4% | Bonner Elementary School District / 2,365 |
| 62. | 0.4% | Fairfield High School District / 1,888 |
| 62. | 0.4% | Twin Bridges K-12 Schools / 1,351 |
| 62. | 0.4% | Choteau High School District / 3,107 |
| 65. | 0.4% | Somers Elementary School District / 4,396 |
| 66. | 0.4% | Great Falls Elementary School District / 72,584 |
| 66. | 0.4% | Shields Valley High School District / 1,731 |
| 66. | 0.4% | Shields Valley Elementary School District / 1,731 |
| 66. | 0.4% | Three Forks High School District / 2,592 |
| 66. | 0.4% | Simms High School District / 3,100 |
| 66. | 0.4% | Great Falls High School District / 72,659 |
| 72. | 0.4% | Bigfork Elementary School District / 6,078 |
| 72. | 0.4% | Big Timber Elementary School District / 2,819 |
| 72. | 0.4% | Frontier Elementary School District / 566 |
| 72. | 0.4% | Three Forks Elementary School District / 2,639 |
| 76. | 0.4% | East Helena Elementary School District / 8,387 |
| 76. | 0.4% | Missoula High School District / 97,049 |
| 78. | 0.3% | Dutton/Brady K-12 Schools / 945 |
| 78. | 0.3% | Bozeman Elementary School District / 51,961 |
| 80. | 0.3% | Miles City Elementary School District / 9,488 |
| 81. | 0.3% | Sunburst K-12 Schools / 1,300 |
| 81. | 0.3% | Bozeman High School District / 58,563 |
| 83. | 0.3% | Troy Elementary School District / 2,612 |
| 83. | 0.3% | Glendive Elementary School District / 6,042 |
| 85. | 0.3% | Stevensville Elementary School District / 6,627 |
| 85. | 0.3% | Bigfork High School District / 7,893 |
| 85. | 0.3% | Missoula Elementary School District / 70,583 |
| 85. | 0.3% | Sweet Grass County High School District / 3,567 |
| 89. | 0.3% | Frenchtown K-12 Schools / 5,970 |
| 89. | 0.3% | Anderson Elementary School District / 1,129 |
| 91. | 0.3% | Name N/A / 852,731 |
| 91. | 0.3% | Custer County High School District / 11,129 |
| 93. | 0.3% | Victor K-12 Schools / 3,644 |
| 93. | 0.3% | Flathead High School District / 52,794 |
| 93. | 0.3% | Fergus High School District / 8,858 |
| 93. | 0.3% | Lewistown Elementary School District / 8,714 |
| 93. | 0.3% | Troy High School District / 3,222 |
| 98. | 0.3% | Boulder Elementary School District / 2,428 |
| 99. | 0.2% | Dawson High School District / 8,074 |
| 100. | 0.2% | Hellgate Elementary School District / 10,647 |
| 100. | 0.2% | Helena Flats Elementary School District / 1,534 |
| 102. | 0.2% | Cascade Elementary School District / 1,757 |
| 103. | 0.2% | Cut Bank High School District / 4,451 |
| 103. | 0.2% | Cut Bank Elementary School District / 4,451 |
| 103. | 0.2% | Butte Elementary School District / 31,449 |
| 103. | 0.2% | Superior K-12 Schools / 2,370 |
| 107. | 0.2% | Butte High School District / 32,714 |
| 108. | 0.2% | Red Lodge High School District / 4,012 |
| 109. | 0.1% | Columbia Falls High School District / 14,405 |
| 110. | 0.1% | Dillon Elementary School District / 7,428 |
| 110. | 0.1% | Monforton Elementary School District / 1,807 |
| 110. | 0.1% | Cascade High School District / 2,659 |
| 113. | 0.1% | Beaverhead County High School District / 8,478 |
| 113. | 0.1% | Anaconda High School District / 8,782 |
| 113. | 0.1% | Anaconda Elementary School District / 8,737 |
| 113. | 0.1% | Billings High School District / 122,509 |
| 113. | 0.1% | Billings Elementary School District / 104,681 |
| 118. | 0.1% | Columbia Falls Elementary School District / 13,994 |
| 119. | 0.1% | Hardin High School District / 8,013 |
| 120. | 0.1% | Hardin Elementary School District / 8,993 |
| 121. | 0.1% | Laurel Elementary School District / 10,532 |
| 121. | 0.1% | Jefferson High School District / 7,804 |
| 123. | 0.1% | Whitehall High School District / 3,725 |
| 124. | 0.1% | Wolf Point High School District / 4,281 |
| 125. | 0.0% | Kalispell Elementary School District / 28,562 |
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.
