| Rank | Portuguese as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 2.9% | LaSalle Elementary School District 122 / 9,180 |
| 2. | 1.9% | Virginia Community Unit School District 64 / 2,417 |
| 3. | 1.6% | Greenfield Community Unit School District 10 / 2,804 |
| 4. | 1.5% | Spring Lake Community Consolidated School District 606 / 778 |
| 5. | 1.4% | Waverly Community Unit School District 6 / 1,733 |
| 5. | 1.4% | Triopia Community Unit School District 27 / 2,230 |
| 7. | 1.4% | Hardin County Community Unit School District 1 / 4,470 |
| 8. | 1.3% | Wallace Community Consolidated School District 195 / 2,339 |
| 9. | 1.2% | Pleasant Plains Community Unit School District 8 / 7,424 |
| 9. | 1.2% | Community Unit School District 16 / 4,974 |
| 11. | 1.2% | Jacksonville School District 117 / 28,917 |
| 12. | 1.0% | Pinckneyville School District 50 / 5,717 |
| 13. | 1.0% | Selmaville Community Consolidated School District 10 / 1,775 |
| 14. | 1.0% | LaSalle-Peru Township High School District 120 / 28,535 |
| 15. | 1.0% | Du Quoin Community Unit School District 300 / 9,616 |
| 16. | 1.0% | Cowden-Herrick Community Unit School District 3A / 2,282 |
| 17. | 0.9% | Marshall Community Unit School District 2C / 8,439 |
| 18. | 0.9% | Winchester Community Unit School District 1 / 3,761 |
| 19. | 0.8% | Northwestern Community Unit School District 2 / 2,462 |
| 20. | 0.8% | Bradford Community Unit School District 1 / 1,782 |
| 21. | 0.8% | Shelbyville Community Unit School District 4 / 7,583 |
| 22. | 0.8% | Miller Township Community Consolidated School District / 2,141 |
| 23. | 0.7% | Oglesby Elementary School District 125 / 4,408 |
| 24. | 0.7% | Kings Consolidated School District 144 / 1,029 |
| 25. | 0.7% | Carlinville Community Unit School District 1 / 9,264 |
| 25. | 0.7% | Gower School District 62 / 10,468 |
| 27. | 0.7% | Fremont School District 79 / 14,383 |
| 27. | 0.7% | Coulterville Unit School District 1 / 1,614 |
| 29. | 0.6% | Wesclin Community Unit School District 3 / 7,196 |
| 29. | 0.6% | Riverton Community Unit School District 14 / 8,083 |
| 31. | 0.6% | Pleasantdale School District 107 / 8,126 |
| 32. | 0.6% | Bradley School District 61 / 11,682 |
| 32. | 0.6% | Byron Community Unit School District 226 / 7,851 |
| 32. | 0.6% | Franklin Community Unit School District 1 / 1,558 |
| 35. | 0.6% | Dixon Unit School District 170 / 21,710 |
| 36. | 0.5% | Pinckneyville Community High School District 101 / 11,114 |
| 37. | 0.5% | Metamora Community Consolidated School District 1 / 6,317 |
| 37. | 0.5% | North Chicago School District 187 / 31,499 |
| 39. | 0.5% | Greenview Community Unit School District 200 / 1,563 |
| 40. | 0.5% | Cambridge Community Unit School District 227 / 3,021 |
| 40. | 0.5% | Ball-Chatham Community Unit School District 5 / 24,641 |
| 40. | 0.5% | Oregon Community Unit School District 220 / 11,429 |
| 43. | 0.5% | Salem School District 111 / 8,738 |
| 43. | 0.5% | Hillside School District 93 / 5,305 |
| 45. | 0.5% | Creve Coeur School District 76 / 5,617 |
| 46. | 0.5% | De Soto Consolidated School District 86 / 1,914 |
| 46. | 0.5% | O'Fallon Community Consolidated School District 90 / 26,098 |
| 48. | 0.4% | Heritage Community Unit School District 8 / 2,902 |
| 49. | 0.4% | Porta Community Unit School District 202 / 6,925 |
| 49. | 0.4% | Salem Community High School District 600 / 14,662 |
| 49. | 0.4% | Pope County Community Unit School District 1 / 4,071 |
| 52. | 0.4% | Rochester Community Unit School District 3A / 9,666 |
| 53. | 0.4% | Sandwich Community Unit School District 430 / 14,659 |
| 54. | 0.4% | Rossville-Alvin Community Unit School District 7 / 2,465 |
| 55. | 0.4% | Prairie Grove Community School District 46 / 7,861 |
| 55. | 0.4% | Sangamon Valley Community Unit School District 9 / 3,854 |
| 55. | 0.4% | Georgetown-Ridge Farm Consolidated Unit School District 4 / 6,451 |
| 58. | 0.3% | Scott-Morgan Consolidated Unit School District 2 / 1,501 |
| 58. | 0.3% | O'Fallon Township High School District 203 / 36,794 |
| 58. | 0.3% | Cary Community Consolidated School District 26 / 23,250 |
| 61. | 0.3% | Valmeyer Community Unit School District 3 / 2,642 |
| 62. | 0.3% | Homewood School District 153 / 15,581 |
| 62. | 0.3% | Ludlow Community Consolidated School District 142 / 1,201 |
| 62. | 0.3% | St. Anne Consolidated Community School District 256 / 2,882 |
| 62. | 0.3% | East Prairie School District 73 / 4,515 |
| 62. | 0.3% | Coal City Community Unit School District 1 / 10,885 |
| 67. | 0.3% | Chester-East Lincoln Community Csd 61 / 3,353 |
| 67. | 0.3% | North Greene Unit School District 3 / 6,369 |
| 67. | 0.3% | Hartsburg-Emden Community Unit School District 21 / 1,241 |
| 67. | 0.3% | Elmhurst School District 205 / 48,567 |
| 67. | 0.3% | Jersey Community Unit School District 100 / 19,823 |
| 67. | 0.3% | West Central Community Unit School District 235 / 6,413 |
| 67. | 0.3% | Williamsville Community Unit School District 15 / 6,461 |
| 67. | 0.3% | Metamora Township High School District 122 / 15,154 |
| 75. | 0.3% | Bethalto Consolidated Unit School District 8 / 15,745 |
| 75. | 0.3% | Pawnee Community Unit School District 11 / 2,995 |
| 77. | 0.3% | Blue Ridge Community Unit School District 18 / 5,565 |
| 77. | 0.3% | Gillespie Community Unit School District 7 / 7,982 |
| 77. | 0.3% | Mattoon Community Unit School District 2 / 22,115 |
| 77. | 0.3% | Itasca School District 10 / 8,500 |
| 81. | 0.3% | Niles Elementary School District 71 / 7,270 |
| 81. | 0.3% | Spoon River Valley Community Unit School District 4 / 2,273 |
| 81. | 0.3% | Morrisonville Community Unit School District 1 / 1,834 |
| 81. | 0.3% | East Peoria Community High School District 309 / 25,502 |
| 85. | 0.2% | St. Joseph Community Consolidated School District 169 / 5,886 |
| 85. | 0.2% | Milford Township High School District 233 / 3,807 |
| 85. | 0.2% | Rantoul City School District 137 / 12,368 |
| 85. | 0.2% | Community Unit School District 4 / 4,115 |
| 85. | 0.2% | Milford Community Consolidated School District 280 / 3,807 |
| 85. | 0.2% | Lake Bluff Elementary School District 65 / 8,927 |
| 85. | 0.2% | Wood River-Hartford Elementary School District 15 / 7,179 |
| 85. | 0.2% | Eldorado Community Unit School District 4 / 7,466 |
| 93. | 0.2% | Adlai E. Stevenson High School District 125 / 63,081 |
| 93. | 0.2% | Antioch Community Consolidated School District 34 / 21,954 |
| 93. | 0.2% | Carrollton Community Unit School District 1 / 3,899 |
| 93. | 0.2% | North Boone Community Unit School District 200 / 9,455 |
| 97. | 0.2% | Virden Community Unit School District 4 / 4,927 |
| 97. | 0.2% | Galesburg Community Unit School District 205 / 34,412 |
| 97. | 0.2% | Huntley Consolidated School District 158 / 36,341 |
| 97. | 0.2% | Vandalia Community Unit School District 203 / 9,977 |
| 101. | 0.2% | Mount Olive Community Unit School District 5 / 3,375 |
| 101. | 0.2% | Forest Park School District 91 / 15,112 |
| 101. | 0.2% | Springfield School District 186 / 116,026 |
| 101. | 0.2% | Riley Community Consolidated School District 18 / 3,142 |
| 101. | 0.2% | Beardstown Community Unit School District 15 / 7,573 |
| 101. | 0.2% | Depue Community Unit School District 103 / 2,173 |
| 101. | 0.2% | Diamond Lake School District 76 / 8,500 |
| 101. | 0.2% | Bradley-Bourbonnais Consolidated High School District 307 / 37,677 |
| 109. | 0.2% | A-C Central Community Unit School District 262 / 2,942 |
| 109. | 0.2% | Batavia Unit School District 101 / 31,942 |
| 109. | 0.2% | Rantoul Township High School District 193 / 17,182 |
| 109. | 0.2% | Triad Community Unit School District 2 / 19,194 |
| 109. | 0.2% | Taft School District 90 / 4,902 |
| 109. | 0.2% | Saratoga Community Consolidated School District 60C / 5,177 |
| 109. | 0.2% | Glencoe School District 35 / 8,771 |
| 109. | 0.2% | East Peoria School District 86 / 18,221 |
| 109. | 0.2% | Sycamore Community Unit School District 427 / 20,999 |
| 118. | 0.2% | Danville Community Consolidated School District 118 / 40,017 |
| 118. | 0.2% | Schuyler-Industry Community Unit School District 5 / 7,309 |
| 118. | 0.2% | Alden-Hebron School District 19 / 3,069 |
| 118. | 0.2% | Auburn Community Unit School District 10 / 6,606 |
| 118. | 0.2% | Decatur School District 61 / 70,831 |
| 118. | 0.2% | Libertyville School District 70 / 19,984 |
| 118. | 0.2% | Community High School District 155 / 96,663 |
| 125. | 0.2% | Monticello Community Unit School District 25 / 8,588 |
| 125. | 0.2% | Herscher Community Unit School District 2 / 10,597 |
| 125. | 0.2% | Rondout School District 72 / 1,808 |
| 125. | 0.2% | Sterling Community Unit District 5 / 21,731 |
| 125. | 0.2% | Havana Community Unit School District 126 / 6,651 |
| 125. | 0.2% | Cicero School District 99 / 80,550 |
| 125. | 0.2% | Dakota Community Unit School District 201 / 4,354 |
| 132. | 0.2% | Warrensburg-Latham Community Unit District 11 / 7,270 |
| 132. | 0.2% | St. George Community Consolidated School District 258 / 2,880 |
| 132. | 0.2% | St. Joseph-Ogden Community High School District 305 / 7,990 |
| 132. | 0.2% | Geneva Community Unit School District 304 / 27,729 |
| 132. | 0.2% | Patoka Community Unit School District 100 / 1,473 |
| 132. | 0.2% | Northbrook School District 28 / 13,725 |
| 132. | 0.2% | Harvard Community Unit School District 50 / 14,503 |
| 132. | 0.2% | Tuscola Community Unit School District 301 / 5,937 |
| 132. | 0.2% | DeKalb Community Unit School District 428 / 52,712 |
| 141. | 0.2% | West Washington County Community Unit District 10 / 4,077 |
| 141. | 0.2% | St. Anne Community High School District 302 / 5,443 |
| 141. | 0.2% | Girard Community Unit School District 3 / 4,365 |
| 141. | 0.2% | Lisle Community Unit School District 202 / 14,078 |
| 145. | 0.2% | Ottawa Township High School District 140 / 31,749 |
| 145. | 0.2% | Herrin Community Unit School District 4 / 15,651 |
| 145. | 0.2% | River Bend Community Unit District 2 / 6,710 |
| 145. | 0.2% | Germantown Hills School District 69 / 6,234 |
| 145. | 0.2% | Paxton-Buckley-Loda Community Unit School District 10 / 8,567 |
| 145. | 0.2% | Villa Park School District 45 / 35,529 |
| 145. | 0.2% | Oak Park Elementary School District 97 / 53,103 |
| 145. | 0.2% | Belleville School District 118 / 35,678 |
| 145. | 0.2% | Arlington Heights School District 25 / 48,637 |
| 154. | 0.1% | Benjamin School District 25 / 6,460 |
| 154. | 0.1% | Palatine Community Consolidated School District 15 / 117,755 |
| 154. | 0.1% | Gurnee School District 56 / 16,011 |
| 154. | 0.1% | Kenilworth School District 38 / 2,887 |
| 154. | 0.1% | Rock Island School District 41 / 44,527 |
| 154. | 0.1% | Lyons Township High School District 204 / 66,137 |
| 160. | 0.1% | Altamont Community Unit School District 10 / 4,756 |
| 160. | 0.1% | Community Consolidated School District 93 / 34,011 |
| 160. | 0.1% | Crystal Lake Community Consolidated School District 47 / 60,711 |
| 160. | 0.1% | Round Lake Community Unit School District 116 / 39,118 |
| 160. | 0.1% | Evanston Township High School District 202 / 84,695 |
| 160. | 0.1% | Barrington Community Unit School District 220 / 44,741 |
| 160. | 0.1% | Evanston Community Consolidated School District 65 / 84,695 |
| 160. | 0.1% | Gavin School District 37 / 6,456 |
| 160. | 0.1% | Roselle School District 12 / 7,990 |
| 160. | 0.1% | Community Unit School District 300 / 113,766 |
| 160. | 0.1% | Lake Villa Community Consolidated School District 41 / 22,282 |
| 160. | 0.1% | Joliet Public School District 86 / 98,824 |
| 160. | 0.1% | Oswego Community Unit School District 308 / 55,989 |
| 160. | 0.1% | McHenry Community High School District 156 / 45,771 |
| 160. | 0.1% | McHenry Community Consolidated School District 15 / 42,838 |
| 175. | 0.1% | Grant Community High School District 124 / 31,246 |
| 175. | 0.1% | Antioch Community High School District 117 / 43,663 |
| 175. | 0.1% | Oak Park and River Forest District 200 / 64,226 |
| 175. | 0.1% | Paris Community Unit School District 4 / 4,339 |
| 175. | 0.1% | Hiawatha Community Unit School District 426 / 3,568 |
| 175. | 0.1% | South Holland School District 151 / 12,905 |
| 175. | 0.1% | Homewood-Flossmoor Community High School District 233 / 36,480 |
| 175. | 0.1% | Marquardt School District 15 / 24,872 |
| 175. | 0.1% | Northbrook/Glenview School District 30 / 10,861 |
| 184. | 0.1% | Bensenville School District 2 / 20,544 |
| 184. | 0.1% | LaGrange Highlands School District 106 / 8,547 |
| 184. | 0.1% | Robein School District 85 / 2,044 |
| 184. | 0.1% | Carrier Mills-Stonefort Community Unit School District / 2,986 |
| 184. | 0.1% | Geneseo Community Unit School District 228 / 15,997 |
| 184. | 0.1% | West Northfield School District 31 / 9,246 |
| 184. | 0.1% | East Alton-Wood River Community High School District 14 / 15,142 |
| 184. | 0.1% | Johnston City Community Unit School District 1 / 7,967 |
| 184. | 0.1% | Joliet Township High School District 204 / 141,507 |
| 184. | 0.1% | Winthrop Harbor School District 1 / 6,905 |
| 184. | 0.1% | Urbana School District 116 / 48,785 |
| 184. | 0.1% | St. Charles Community Unit School District 303 / 64,237 |
| 196. | 0.1% | Township High School District 214 / 245,678 |
| 196. | 0.1% | Centralia School District 135 / 13,934 |
| 196. | 0.1% | Morris Community High School District 101 / 18,602 |
| 196. | 0.1% | Naperville Community Unit District 203 / 102,048 |
| 196. | 0.1% | J. Sterling Morton High School District 201 / 147,548 |
| 196. | 0.1% | Warren Township High School District 121 / 64,294 |
| 196. | 0.1% | Troy Community Consolidated School District 30C / 35,403 |
| 196. | 0.1% | Cook County School District 130 / 29,069 |
| 196. | 0.1% | Quincy School District 172 / 50,733 |
| 196. | 0.1% | Dunlap Community Unit School District 323 / 16,552 |
| 206. | 0.1% | Champaign Community Unit School District 4 / 89,676 |
| 206. | 0.1% | Pekin Public School District108 / 32,911 |
| 206. | 0.1% | Steger School District 194 / 14,119 |
| 206. | 0.1% | Edwardsville Community Unit School District 7 / 49,060 |
| 206. | 0.1% | Whiteside School District 115 / 11,134 |
| 206. | 0.1% | Indian Prairie Community Unit School District 204 / 117,177 |
| 206. | 0.1% | Woodland Community Consolidated School District 50 / 49,686 |
| 206. | 0.1% | Northfield Township High School District 225 / 85,342 |
| 206. | 0.1% | Lake Forest Community High School District 115 / 29,962 |
| 206. | 0.1% | Pekin Community High School District 303 / 44,837 |
| 206. | 0.1% | Plainfield School District 202 / 100,005 |
| 206. | 0.1% | Woodridge School District 68 / 32,922 |
| 206. | 0.1% | ROWVA Community Unit School District 208 / 4,130 |
| 206. | 0.1% | McLean County Unit School District 5 / 89,230 |
| 206. | 0.1% | Hinsdale Township High School District 86 / 77,530 |
| 206. | 0.1% | Bement Community Unit School District 5 / 2,806 |
| 222. | 0.1% | East Dubuque Community Unit School District 119 / 4,145 |
| 222. | 0.1% | LaGrange School District 102 / 24,056 |
| 222. | 0.1% | Maroa-Forsyth Community Unit School District 2 / 6,137 |
| 222. | 0.1% | Cahokia Community Unit School District 187 / 20,194 |
| 222. | 0.1% | Community Unit School District 200 / 79,138 |
| 222. | 0.1% | Yorkville Community Unit School District 115 / 22,716 |
| 222. | 0.1% | Park Forest School District 163 / 16,095 |
| 222. | 0.1% | Libertyville Community High School District 128 / 49,804 |
| 222. | 0.1% | Litchfield Community Unit School District 12 / 8,584 |
| 222. | 0.1% | Lyons School District 103 / 21,047 |
| 222. | 0.1% | Worth School District 127 / 10,356 |
| 222. | 0.1% | Gallatin Community Unit School District 7 / 5,580 |
| 222. | 0.1% | West Lincoln-Broadwell Elementary School District 92 / 5,094 |
| 235. | 0.1% | Kirby School District 140 / 40,025 |
| 235. | 0.1% | Name N/A / 4,722,093 |
| 235. | 0.1% | Lansing School District 158 / 21,795 |
| 235. | 0.1% | Morris School District 54 / 12,836 |
| 235. | 0.1% | Glenview Community Consolidated School District 34 / 39,907 |
| 235. | 0.1% | Stark County Community Unit School District 100 / 4,849 |
| 235. | 0.1% | Lincoln Elementary School District 156 / 7,763 |
| 235. | 0.1% | Kildeer Countryside Community Consolidated School District 96 / 24,304 |
| 235. | 0.1% | Calumet Public School District 132 / 11,816 |
| 235. | 0.1% | DuPage High School District 88 / 82,390 |
| 235. | 0.1% | Proviso Township High School District 209 / 123,355 |
| 235. | 0.1% | Pontiac Community Consolidated School District 429 / 13,213 |
| 235. | 0.1% | Fenton Community High School District 100 / 31,126 |
| 235. | 0.1% | Rockton School District 140 / 10,001 |
| 235. | 0.1% | Wheeling Community Consolidated School District 21 / 64,762 |
| 250. | 0.1% | Belleville Township High School District 201 / 100,903 |
| 250. | 0.1% | Olympia Community Unit School District 16 / 12,530 |
| 250. | 0.1% | Midland Community Unit School District 7 / 5,363 |
| 250. | 0.1% | Woodstock Community Unit School District 200 / 36,015 |
| 250. | 0.1% | Centralia High School District 200 / 22,033 |
| 250. | 0.1% | Peoria School District 150 / 106,668 |
| 250. | 0.1% | Chicago Public School District 299 / 2,824,076 |
| 250. | 0.1% | Pontiac Township High School District 90 / 15,907 |
| 250. | 0.1% | Tolono Community Unit School District 7 / 8,976 |
| 250. | 0.1% | Lincoln Community High School District 404 / 21,970 |
| 250. | 0.1% | Lake Park Community High School District 108 / 51,742 |
| 250. | 0.1% | Aptakisic-Tripp Community Consolidated School District / 18,707 |
| 250. | 0.1% | Collinsville Community Unit School District 10 / 45,867 |
| 250. | 0.1% | Posen-Robbins Elementary School District 143-5 / 11,587 |
| 250. | 0.1% | Park Ridge Consolidated Community School District 64 / 39,374 |
| 250. | 0.1% | Palos Community Consolidated School District 118 / 23,341 |
| 250. | 0.1% | Mount Prospect School District 57 / 19,671 |
| 267. | 0.1% | Highland Community Unit School District 5 / 17,129 |
| 267. | 0.1% | Cumberland Community Unit School District 77 / 6,233 |
| 267. | 0.1% | El Paso-Gridley Community Unit School District 11 / 6,903 |
| 267. | 0.1% | Rockridge Community Unit School District 300 / 7,388 |
| 267. | 0.1% | East Maine School District 63 / 45,166 |
| 267. | 0.1% | Harlem Unit School District 122 / 46,508 |
| 267. | 0.1% | Maywood-Melrose Park-Broadview School District 89 / 42,778 |
| 267. | 0.1% | Township High School District 211 / 234,105 |
| 267. | 0.1% | Indian Springs School District 109 / 23,303 |
| 267. | 0.1% | Bloomington School District 87 / 43,115 |
| 267. | 0.1% | Marengo Community High School District 154 / 14,331 |
| 267. | 0.1% | Macomb Community Unit School District 185 / 22,802 |
| 279. | 0.0% | Maine Township High School District 207 / 139,587 |
| 279. | 0.0% | New Trier Township High School District 203 / 59,667 |
| 279. | 0.0% | Waukegan Community Unit School District 60 / 86,907 |
| 279. | 0.0% | Rockford School District 205 / 197,697 |
| 279. | 0.0% | Waterloo Community Unit School District 5 / 17,648 |
| 279. | 0.0% | Homer Community Consolidated School District 33C / 26,946 |
| 279. | 0.0% | Glenbard Township High School District 87 / 161,734 |
| 279. | 0.0% | Rochelle Township High School District 212 / 17,645 |
| 279. | 0.0% | Bourbonnais School District 53 / 23,115 |
| 279. | 0.0% | Freeport School District 145 / 29,832 |
| 279. | 0.0% | Community High School District 218 / 117,651 |
| 279. | 0.0% | Community High School District 99 / 110,166 |
| 279. | 0.0% | Carbondale Community High School District 165 / 36,740 |
| 279. | 0.0% | Schaumburg Community Consolidated School District 54 / 132,880 |
| 279. | 0.0% | Kankakee School District 111 / 32,737 |
| 279. | 0.0% | Burbank School District 111 / 28,473 |
| 279. | 0.0% | Mannheim School District 83 / 21,032 |
| 296. | 0.0% | Reavis Township High School District 220 / 30,936 |
| 296. | 0.0% | Argo Community High School District 217 / 38,541 |
| 296. | 0.0% | Carbondale Elementary School District 95 / 27,322 |
| 296. | 0.0% | Matteson Elementary School District 162 / 23,227 |
| 296. | 0.0% | Consolidated High School District 230 / 155,984 |
| 296. | 0.0% | Alton Community Unit School District 11 / 49,395 |
| 296. | 0.0% | Breese School District 12 / 6,783 |
| 296. | 0.0% | Wauconda Community Unit School District 118 / 25,107 |
| 296. | 0.0% | Berwyn South School District 100 / 29,048 |
| 296. | 0.0% | Niles Township Community High School District 219 / 94,511 |
| 296. | 0.0% | Rich Township High School District 227 / 64,486 |
| 296. | 0.0% | Lake Forest School District 67 / 20,797 |
| 296. | 0.0% | Midwest Central Community Unit School District 191 / 6,867 |
| 296. | 0.0% | Lockport Township High School District 205 / 75,447 |
| 296. | 0.0% | Community Consolidated School District 59 / 63,662 |
| 296. | 0.0% | Hawthorn Community Consolidated School District 73 / 28,155 |
| 296. | 0.0% | Thornton Fractional Township High School District 215 / 58,072 |
| 296. | 0.0% | Princeton High School District 500 / 12,111 |
| 296. | 0.0% | Downers Grove Grade School District 58 / 53,011 |
| 296. | 0.0% | Princeton Elementary School District 115 / 11,430 |
| 296. | 0.0% | Bloom Township High School District 206 / 65,205 |
| 317. | 0.0% | Galena Unit School District 120 / 5,525 |
| 317. | 0.0% | Lake Zurich Community Unit School District 95 / 33,213 |
| 317. | 0.0% | Hononegah Community High School District 207 / 27,443 |
| 317. | 0.0% | Mundelein Consolidated High School District 120 / 39,864 |
| 317. | 0.0% | School District U-46 / 220,636 |
| 317. | 0.0% | Community High School District 94 / 41,726 |
| 317. | 0.0% | East St. Louis School District 189 / 44,780 |
| 317. | 0.0% | Chicago Heights School District 170 / 25,323 |
| 317. | 0.0% | Taylorville Community Unit School District 3 / 18,423 |
| 317. | 0.0% | Zion-Benton Township High School District 126 / 45,405 |
| 317. | 0.0% | Murphysboro Community Unit School District 186 / 14,884 |
| 317. | 0.0% | Granite City Community Unit School District 9 / 45,755 |
| 317. | 0.0% | Aurora West Unit School District 129 / 78,322 |
| 317. | 0.0% | Valley View Community Unit School District 365U / 92,443 |
| 331. | 0.0% | Thornton Township High School District 205 / 118,770 |
| 331. | 0.0% | Bremen Community High School District 228 / 94,111 |
| 331. | 0.0% | Des Plaines Community Consolidated School District 62 / 49,282 |
| 331. | 0.0% | Central Community High School District 71 / 15,528 |
| 331. | 0.0% | Bellwood School District 88 / 22,689 |
| 331. | 0.0% | Kaneland Community Unit School District 302 / 23,164 |
| 331. | 0.0% | Leyden Community High School District 212 / 61,917 |
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.
