| Rank | Portuguese as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 2.2% | Fremont Community School District / 1,058 |
| 2. | 1.6% | Starmont Community School District / 4,089 |
| 3. | 1.1% | Colo-Nesco Community School District / 3,186 |
| 4. | 1.1% | Fredericksburg Community School District / 1,676 |
| 5. | 0.9% | Walnut Community School District / 1,280 |
| 5. | 0.9% | Urbandale Community School District / 21,268 |
| 7. | 0.9% | Perry Community School District / 9,525 |
| 8. | 0.8% | BCLUW Community School District / 3,495 |
| 9. | 0.8% | Eddyville-Blakesburg Community School District / 3,871 |
| 10. | 0.7% | Tipton Community School District / 5,143 |
| 11. | 0.6% | Woodbine Community School District / 2,484 |
| 12. | 0.5% | East Buchanan Community School District / 3,047 |
| 12. | 0.5% | Boyden-Hull Community School District / 4,055 |
| 14. | 0.5% | North Fayette Community School District / 6,092 |
| 15. | 0.5% | Forest City Community School District / 6,688 |
| 16. | 0.5% | Monticello Community School District / 6,540 |
| 16. | 0.5% | Baxter Community School District / 1,895 |
| 18. | 0.5% | Edgewood-Colesburg Community School District / 2,993 |
| 19. | 0.4% | Northeast Community School District / 2,976 |
| 20. | 0.4% | Danville Community School District / 2,580 |
| 20. | 0.4% | Centerville Community School District / 9,023 |
| 22. | 0.4% | Glenwood Community School District / 11,050 |
| 23. | 0.4% | Armstrong-Ringsted Community School District / 2,238 |
| 24. | 0.3% | Whiting Community School District / 1,101 |
| 25. | 0.3% | West Sioux Community School District / 4,130 |
| 26. | 0.3% | Northeast Hamilton Community School District / 1,504 |
| 27. | 0.3% | Tri-Center Community School District / 3,507 |
| 28. | 0.3% | Galva-Holstein Community School District / 2,763 |
| 29. | 0.3% | Gilbert Community School District / 6,573 |
| 29. | 0.3% | Pleasant Valley Community School District / 20,478 |
| 31. | 0.3% | Marcus-Meriden-Cleghorn Community School District / 2,750 |
| 32. | 0.3% | Mason City Community School District / 28,931 |
| 33. | 0.2% | Panorama Community School District / 4,443 |
| 34. | 0.2% | Garner-Hayfield Community School District / 3,825 |
| 34. | 0.2% | Fairfield Community School District / 15,380 |
| 36. | 0.2% | Howard-Winneshiek Community School District / 8,729 |
| 36. | 0.2% | PCM Community School District / 5,079 |
| 36. | 0.2% | H-L-V Community School District / 2,162 |
| 39. | 0.2% | Wayne Community School District / 3,986 |
| 39. | 0.2% | North Cedar Community School District / 5,092 |
| 39. | 0.2% | Maquoketa Valley Community School District / 4,495 |
| 42. | 0.2% | Twin Rivers Community School District / 1,206 |
| 43. | 0.2% | Malvern Community School District / 3,346 |
| 43. | 0.2% | Mount Vernon Community School District / 6,558 |
| 45. | 0.2% | South Page Community School District / 1,448 |
| 45. | 0.2% | Vinton-Shellsburg Community School District / 10,549 |
| 45. | 0.2% | Melcher-Dallas Community School District / 2,120 |
| 48. | 0.2% | North Central Community School District / 5,591 |
| 48. | 0.2% | Lone Tree Community School District / 2,972 |
| 48. | 0.2% | Iowa Valley Community School District / 3,832 |
| 51. | 0.2% | Newton Community School District / 21,168 |
| 51. | 0.2% | Boone Community School District / 14,545 |
| 51. | 0.2% | Madrid Community School District / 3,349 |
| 51. | 0.2% | Tri-County Community School District / 1,794 |
| 51. | 0.2% | Lake Mills Community School District / 3,806 |
| 56. | 0.1% | River Valley Community School District / 2,720 |
| 56. | 0.1% | Fort Madison Community School District / 17,063 |
| 58. | 0.1% | East Marshall Community School District / 3,657 |
| 58. | 0.1% | Aurelia Community School District / 1,691 |
| 58. | 0.1% | West Marshall Community School District / 4,567 |
| 58. | 0.1% | Iowa City Community School District / 106,668 |
| 58. | 0.1% | Coon Rapids-Bayard Community School District / 2,810 |
| 58. | 0.1% | Winfield-Mount Union Community School District / 1,815 |
| 64. | 0.1% | Spencer Community School District / 12,976 |
| 64. | 0.1% | Waverly-Shell Rock Community School District / 13,637 |
| 64. | 0.1% | South Hamilton Community School District / 3,759 |
| 64. | 0.1% | Mount Pleasant Community School District / 12,932 |
| 68. | 0.1% | Council Bluffs Community School District / 60,187 |
| 68. | 0.1% | Ames Community School District / 56,587 |
| 70. | 0.1% | Ar-We-Va Community School District / 2,156 |
| 70. | 0.1% | Ankeny Community School District / 49,867 |
| 70. | 0.1% | Carlisle Community School District / 8,501 |
| 73. | 0.1% | Des Moines Independent Community School District / 203,403 |
| 73. | 0.1% | Clinton Community School District / 26,242 |
| 75. | 0.1% | Humboldt Community School District / 7,490 |
| 75. | 0.1% | Wapsie Valley Community School District / 3,925 |
| 75. | 0.1% | Johnston Community School District / 30,545 |
| 75. | 0.1% | Grinnell-Newburg Community School District / 12,522 |
| 79. | 0.1% | Durant Community School District / 3,289 |
| 79. | 0.1% | Clear Creek-Amana Community School District / 11,260 |
| 79. | 0.1% | Muscatine Community School District / 29,260 |
| 82. | 0.1% | MFL MarMac Community School District / 5,639 |
| 82. | 0.1% | Charter Oak-Ute Community School District / 1,895 |
| 82. | 0.1% | Oelwein Community School District / 9,113 |
| 82. | 0.1% | Midland Community School District / 3,628 |
| 82. | 0.1% | Allamakee Community School District / 8,769 |
| 82. | 0.1% | Davenport Community School District / 106,768 |
| 82. | 0.1% | Sioux City Community School District / 83,093 |
| 89. | 0.1% | Indianola Community School District / 19,809 |
| 89. | 0.1% | Carroll Community School District / 14,182 |
| 89. | 0.1% | Saydel Community School District / 7,968 |
| 89. | 0.1% | Dubuque Community School District / 75,820 |
| 89. | 0.1% | Cedar Rapids Community School District / 119,948 |
| 89. | 0.1% | Dallas Center-Grimes Community School District / 10,585 |
| 95. | 0.0% | Southern Cal Community School District / 2,907 |
| 95. | 0.0% | Okoboji Community School District / 6,337 |
| 95. | 0.0% | Martensdale-St. Marys Community School District / 2,649 |
| 95. | 0.0% | Oskaloosa Community School District / 15,898 |
| 95. | 0.0% | Waterloo Community School District / 77,879 |
| 95. | 0.0% | Ottumwa Community School District / 28,755 |
| 95. | 0.0% | Southeast Polk Community School District / 31,352 |
| 102. | 0.0% | Harlan Community School District / 9,058 |
| 102. | 0.0% | Waukee Community School District / 36,979 |
| 102. | 0.0% | West Monona Community School District / 4,438 |
| 102. | 0.0% | Linn-Mar Community School District / 36,660 |
| 106. | 0.0% | Marshalltown Community School District / 30,646 |
| 106. | 0.0% | Cedar Falls Community School District / 40,441 |
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.
