| Rank | Portuguese as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 1.9% | Jacksonville School District 117 / 28,304 |
| 2. | 1.6% | Miller Township Community Consolidated School District / 2,192 |
| 3. | 1.5% | Spring Lake Community Consolidated School District 606 / 736 |
| 4. | 1.5% | Franklin Community Unit School District 1 / 2,005 |
| 5. | 1.3% | Winchester Community Unit School District 1 / 3,787 |
| 6. | 1.2% | Oglesby Elementary School District 125 / 4,783 |
| 7. | 1.1% | Batavia Unit School District 101 / 32,091 |
| 8. | 1.1% | Triopia Community Unit School District 27 / 2,227 |
| 9. | 1.0% | Illini Central Community Unit School District 189 / 4,735 |
| 10. | 1.0% | Auburn Community Unit School District 10 / 7,144 |
| 10. | 1.0% | De Soto Consolidated School District 86 / 1,909 |
| 12. | 1.0% | Rockton School District 140 / 12,263 |
| 13. | 0.9% | Prairie Grove Community School District 46 / 7,685 |
| 13. | 0.9% | Waverly Community Unit School District 6 / 2,031 |
| 15. | 0.8% | Wallace Community Consolidated School District 195 / 2,858 |
| 16. | 0.8% | Coal City Community Unit School District 1 / 11,429 |
| 17. | 0.7% | Riverton Community Unit School District 14 / 8,069 |
| 17. | 0.7% | Hoyleton Consolidated School District 29 / 898 |
| 17. | 0.7% | Hoopeston Area Community Unit School District 11 / 7,157 |
| 17. | 0.7% | Bradford Community Unit School District 1 / 1,901 |
| 21. | 0.7% | West Lincoln-Broadwell Elementary School District 92 / 4,936 |
| 22. | 0.7% | Pleasantdale School District 107 / 7,984 |
| 22. | 0.7% | Wesclin Community Unit School District 3 / 7,929 |
| 22. | 0.7% | Greenview Community Unit School District 200 / 1,610 |
| 25. | 0.7% | Metamora Community Consolidated School District 1 / 6,947 |
| 26. | 0.6% | Triad Community Unit School District 2 / 21,111 |
| 26. | 0.6% | Kings Consolidated School District 144 / 1,023 |
| 28. | 0.6% | Wood River-Hartford Elementary School District 15 / 6,300 |
| 29. | 0.6% | Central School District 104 / 5,033 |
| 30. | 0.5% | Warrensburg-Latham Community Unit District 11 / 6,092 |
| 31. | 0.5% | Bradley School District 61 / 12,688 |
| 31. | 0.5% | Pleasant Plains Community Unit School District 8 / 8,112 |
| 33. | 0.5% | North Chicago School District 187 / 29,740 |
| 34. | 0.5% | Beardstown Community Unit School District 15 / 7,937 |
| 35. | 0.5% | Creve Coeur School District 76 / 6,123 |
| 35. | 0.5% | Belvidere Consolidated Unit School District 100 / 45,024 |
| 35. | 0.5% | St. Elmo Community Unit School District 202 / 2,819 |
| 38. | 0.5% | Norwood Elementary School District 63 / 4,120 |
| 39. | 0.4% | A-C Central Community Unit School District 262 / 2,927 |
| 39. | 0.4% | Community Unit School District 16 / 5,756 |
| 41. | 0.4% | Carlinville Community Unit School District 1 / 9,554 |
| 41. | 0.4% | Milford Community Consolidated School District 280 / 3,908 |
| 41. | 0.4% | Milford Township High School District 233 / 3,908 |
| 44. | 0.4% | Carrollton Community Unit School District 1 / 4,067 |
| 45. | 0.4% | Rochester Community Unit School District 3A / 10,343 |
| 46. | 0.4% | Sangamon Valley Community Unit School District 9 / 4,232 |
| 46. | 0.4% | Somonauk Community Unit School District 432 / 4,873 |
| 46. | 0.4% | Dixon Unit School District 170 / 22,927 |
| 49. | 0.4% | Community Unit School District 300 / 109,175 |
| 50. | 0.4% | Lovington Community Unit School District 303 / 1,740 |
| 50. | 0.4% | Du Quoin Community Unit School District 300 / 9,506 |
| 50. | 0.4% | Hononegah Community High School District 207 / 32,082 |
| 50. | 0.4% | Scott-Morgan Consolidated Unit School District 2 / 1,539 |
| 50. | 0.4% | North Greene Unit School District 3 / 6,282 |
| 55. | 0.4% | Williamsville Community Unit School District 15 / 7,589 |
| 55. | 0.4% | Ludlow Community Consolidated School District 142 / 1,012 |
| 55. | 0.4% | Morrisonville Community Unit School District 1 / 1,992 |
| 55. | 0.4% | Carterville Community Unit School District 5 / 11,344 |
| 59. | 0.3% | Ball-Chatham Community Unit School District 5 / 26,839 |
| 60. | 0.3% | Metamora Township High School District 122 / 16,099 |
| 60. | 0.3% | Darien School District 61 / 15,844 |
| 62. | 0.3% | Springfield School District 186 / 113,809 |
| 62. | 0.3% | Glencoe School District 35 / 8,629 |
| 62. | 0.3% | Herrin Community Unit School District 4 / 16,258 |
| 65. | 0.3% | Galesburg Community Unit School District 205 / 35,039 |
| 65. | 0.3% | Gower School District 62 / 9,784 |
| 67. | 0.3% | Benjamin School District 25 / 6,264 |
| 68. | 0.3% | Paris-Union School District 95 / 8,759 |
| 68. | 0.3% | Itasca School District 10 / 8,919 |
| 68. | 0.3% | East Alton-Wood River Community High School District 14 / 13,703 |
| 71. | 0.3% | Forest Park School District 91 / 14,039 |
| 71. | 0.3% | Geneva Community Unit School District 304 / 29,710 |
| 73. | 0.3% | Saratoga Community Consolidated School District 60C / 6,039 |
| 73. | 0.3% | Gallatin Community Unit School District 7 / 5,403 |
| 75. | 0.3% | Braceville School District 75 / 1,466 |
| 75. | 0.3% | Shelbyville Community Unit School District 4 / 7,879 |
| 75. | 0.3% | Name N/A / 8,629 |
| 75. | 0.3% | Southwestern Community Unit School District 9 / 9,523 |
| 75. | 0.3% | Lyons School District 103 / 22,468 |
| 80. | 0.2% | Illini Bluffs Community Unit School District 327 / 5,690 |
| 80. | 0.2% | Spoon River Valley Community Unit School District 4 / 2,471 |
| 80. | 0.2% | Leland Community Unit School District 1 / 1,864 |
| 80. | 0.2% | Lyons Township High School District 204 / 68,460 |
| 80. | 0.2% | Sterling Community Unit District 5 / 21,414 |
| 85. | 0.2% | Cicero School District 99 / 83,924 |
| 86. | 0.2% | Unity Point Community Consolidated School District 140 / 5,256 |
| 86. | 0.2% | Zion Elementary School District 6 / 17,477 |
| 86. | 0.2% | Arlington Heights School District 25 / 50,272 |
| 86. | 0.2% | Thomasboro Community Consolidated School District 130 / 2,248 |
| 86. | 0.2% | Princeton Elementary School District 115 / 11,469 |
| 86. | 0.2% | North Boone Community Unit School District 200 / 8,634 |
| 86. | 0.2% | Pawnee Community Unit School District 11 / 3,218 |
| 86. | 0.2% | Northwestern Community Unit School District 2 / 2,466 |
| 86. | 0.2% | Marshall Community Unit School District 2C / 8,285 |
| 95. | 0.2% | Mount Olive Community Unit School District 5 / 3,490 |
| 95. | 0.2% | Elmhurst School District 205 / 46,896 |
| 95. | 0.2% | Oblong Community Unit School District 4 / 3,763 |
| 95. | 0.2% | Steger School District 194 / 13,624 |
| 95. | 0.2% | Crystal Lake Community Consolidated School District 47 / 62,181 |
| 95. | 0.2% | Dwight Common School District 232 / 6,632 |
| 95. | 0.2% | Community High School District 155 / 96,837 |
| 102. | 0.2% | Princeton High School District 500 / 12,433 |
| 102. | 0.2% | McHenry Community Consolidated School District 15 / 43,205 |
| 102. | 0.2% | Harvard Community Unit School District 50 / 13,577 |
| 102. | 0.2% | O'Fallon Township High School District 203 / 39,357 |
| 102. | 0.2% | Winthrop Harbor School District 1 / 6,689 |
| 102. | 0.2% | Dwight Township High School District 230 / 6,861 |
| 102. | 0.2% | Le Roy Community Unit School District 2 / 4,561 |
| 102. | 0.2% | Seneca Township High School District 160 / 7,284 |
| 102. | 0.2% | Rondout School District 72 / 1,633 |
| 102. | 0.2% | South Fork School District 14 / 2,636 |
| 102. | 0.2% | DeKalb Community Unit School District 428 / 52,331 |
| 102. | 0.2% | Queen Bee School District 16 / 17,277 |
| 114. | 0.2% | Cambridge Community Unit School District 227 / 3,072 |
| 114. | 0.2% | Hinsdale Community Consolidated School District 181 / 25,590 |
| 114. | 0.2% | Millburn Community Consolidated School District 24 / 9,082 |
| 114. | 0.2% | Cook County School District 130 / 28,926 |
| 114. | 0.2% | Benton Community Consolidated School District 47 / 10,110 |
| 114. | 0.2% | Gillespie Community Unit School District 7 / 7,929 |
| 114. | 0.2% | McHenry Community High School District 156 / 46,490 |
| 114. | 0.2% | Stark County Community Unit School District 100 / 4,624 |
| 114. | 0.2% | Selmaville Community Consolidated School District 10 / 2,015 |
| 114. | 0.2% | Community Consolidated School District 93 / 35,814 |
| 114. | 0.2% | Johnsburg Community Unit School District 12 / 12,276 |
| 114. | 0.2% | Woodland Community Consolidated School District 50 / 50,516 |
| 114. | 0.2% | Monticello Community Unit School District 25 / 8,976 |
| 127. | 0.2% | Rosemont Elementary School District 78 / 2,318 |
| 127. | 0.2% | Silvis School District 34 / 5,528 |
| 127. | 0.2% | LaSalle-Peru Township High School District 120 / 29,237 |
| 127. | 0.2% | East Peoria Community High School District 309 / 26,288 |
| 127. | 0.2% | Antioch Community Consolidated School District 34 / 23,358 |
| 127. | 0.2% | O'Fallon Community Consolidated School District 90 / 28,189 |
| 127. | 0.2% | Palos Community Consolidated School District 118 / 23,105 |
| 127. | 0.2% | Hinsdale Township High School District 86 / 74,930 |
| 135. | 0.2% | Warren Township High School District 121 / 68,254 |
| 135. | 0.2% | Lowpoint-Washburn Community Unit School District 21 / 2,501 |
| 135. | 0.2% | Roselle School District 12 / 7,010 |
| 135. | 0.2% | Whiteside School District 115 / 12,526 |
| 135. | 0.2% | River Forest School District 90 / 11,174 |
| 135. | 0.2% | Worth School District 127 / 11,367 |
| 135. | 0.2% | Woodridge School District 68 / 32,321 |
| 135. | 0.2% | Tuscola Community Unit School District 301 / 5,877 |
| 135. | 0.2% | Bradley-Bourbonnais Consolidated High School District 307 / 39,772 |
| 135. | 0.2% | Dakota Community Unit School District 201 / 4,710 |
| 135. | 0.2% | Indian Prairie Community Unit School District 204 / 126,881 |
| 135. | 0.2% | LaGrange School District 102 / 25,131 |
| 147. | 0.2% | Naperville Community Unit District 203 / 95,161 |
| 147. | 0.2% | Staunton Community Unit School District 6 / 8,256 |
| 147. | 0.2% | Gavin School District 37 / 7,597 |
| 147. | 0.2% | Charleston Community Unit School District 1 / 28,530 |
| 151. | 0.2% | Kildeer Countryside Community Consolidated School District 96 / 22,875 |
| 151. | 0.2% | Benton Consolidated High School District 103 / 12,657 |
| 151. | 0.2% | Antioch Community High School District 117 / 44,846 |
| 151. | 0.2% | Cumberland Community Unit School District 77 / 6,296 |
| 155. | 0.1% | Lincoln Community High School District 404 / 24,227 |
| 155. | 0.1% | Pinckneyville School District 50 / 6,670 |
| 155. | 0.1% | Collinsville Community Unit School District 10 / 48,357 |
| 155. | 0.1% | Ottawa Township High School District 140 / 31,742 |
| 159. | 0.1% | Wauconda Community Unit School District 118 / 26,997 |
| 159. | 0.1% | Bethalto Consolidated Unit School District 8 / 16,328 |
| 159. | 0.1% | Community Consolidated School District 146 / 26,189 |
| 159. | 0.1% | J. Sterling Morton High School District 201 / 158,414 |
| 159. | 0.1% | Niles Elementary School District 71 / 8,060 |
| 159. | 0.1% | Oak Grove School District 68 / 7,184 |
| 159. | 0.1% | Gurnee School District 56 / 18,066 |
| 166. | 0.1% | Edwardsville Community Unit School District 7 / 50,788 |
| 166. | 0.1% | Jersey Community Unit School District 100 / 20,016 |
| 166. | 0.1% | Zion-Benton Township High School District 126 / 44,722 |
| 166. | 0.1% | Tri-City Community Unit School District 1 / 2,974 |
| 166. | 0.1% | West Prairie Community Unit School District 103 / 4,681 |
| 166. | 0.1% | Belleville School District 118 / 38,003 |
| 166. | 0.1% | Villa Grove Community Unit School District 302 / 4,079 |
| 166. | 0.1% | Herscher Community Unit School District 2 / 10,714 |
| 166. | 0.1% | Northbrook/Glenview School District 30 / 10,753 |
| 166. | 0.1% | Champaign Community Unit School District 4 / 93,805 |
| 166. | 0.1% | Maroa-Forsyth Community Unit School District 2 / 6,678 |
| 166. | 0.1% | Posen-Robbins Elementary School District 143-5 / 12,153 |
| 166. | 0.1% | Aurora West Unit School District 129 / 76,944 |
| 166. | 0.1% | Villa Park School District 45 / 36,595 |
| 180. | 0.1% | Altamont Community Unit School District 10 / 5,014 |
| 180. | 0.1% | Fieldcrest Community Unit School District 6 / 7,089 |
| 180. | 0.1% | Kenilworth School District 38 / 3,114 |
| 180. | 0.1% | Community High School District 94 / 41,209 |
| 180. | 0.1% | Warren Community Unit School District 205 / 2,974 |
| 180. | 0.1% | Rantoul Township High School District 193 / 17,434 |
| 180. | 0.1% | West Washington County Community Unit District 10 / 4,079 |
| 187. | 0.1% | Clinton Community Unit School District 15 / 11,849 |
| 187. | 0.1% | Centralia School District 135 / 13,480 |
| 187. | 0.1% | Urbana School District 116 / 50,724 |
| 187. | 0.1% | Western Springs School District 101 / 10,047 |
| 187. | 0.1% | Pekin Community High School District 303 / 45,803 |
| 187. | 0.1% | Carrier Mills-Stonefort Community Unit School District / 2,700 |
| 187. | 0.1% | Mount Prospect School District 57 / 19,665 |
| 187. | 0.1% | Pekin Public School District108 / 34,079 |
| 187. | 0.1% | Effingham Community Unit School District 40 / 20,242 |
| 187. | 0.1% | St. Charles Community Unit School District 303 / 68,196 |
| 187. | 0.1% | El Paso-Gridley Community Unit School District 11 / 6,967 |
| 187. | 0.1% | ROWVA Community Unit School District 208 / 4,056 |
| 187. | 0.1% | Mannheim School District 83 / 21,198 |
| 200. | 0.1% | West Northfield School District 31 / 9,767 |
| 200. | 0.1% | Gardner-South Wilmington Township High School District / 4,004 |
| 200. | 0.1% | Freeport School District 145 / 30,458 |
| 200. | 0.1% | Rantoul City School District 137 / 12,569 |
| 200. | 0.1% | Community High School District 99 / 109,533 |
| 200. | 0.1% | Palatine Community Consolidated School District 15 / 118,761 |
| 200. | 0.1% | Township High School District 214 / 251,753 |
| 200. | 0.1% | Murphysboro Community Unit School District 186 / 15,439 |
| 200. | 0.1% | Glenview Community Consolidated School District 34 / 39,997 |
| 200. | 0.1% | Germantown Hills School District 69 / 6,225 |
| 200. | 0.1% | Alton Community Unit School District 11 / 48,625 |
| 200. | 0.1% | East Peoria School District 86 / 18,705 |
| 200. | 0.1% | Joliet Public School District 86 / 85,318 |
| 200. | 0.1% | Plainfield School District 202 / 120,416 |
| 214. | 0.1% | Wheeling Community Consolidated School District 21 / 65,194 |
| 214. | 0.1% | Kewanee Community Unit School District 229 / 11,012 |
| 214. | 0.1% | West Chicago School District 33 / 30,843 |
| 214. | 0.1% | Franklin Park School District 84 / 11,391 |
| 214. | 0.1% | Kankakee School District 111 / 33,001 |
| 214. | 0.1% | Yorkville Community Unit School District 115 / 27,998 |
| 214. | 0.1% | Pinckneyville Community High School District 101 / 11,188 |
| 214. | 0.1% | Downers Grove Grade School District 58 / 52,346 |
| 214. | 0.1% | Mazon-Verona-Kinsman Elementary School District 2C / 2,863 |
| 214. | 0.1% | Nashville Community High School District 99 / 9,049 |
| 214. | 0.1% | Peoria School District 150 / 101,678 |
| 214. | 0.1% | Rock Island School District 41 / 45,126 |
| 214. | 0.1% | Carbondale Community High School District 165 / 37,413 |
| 214. | 0.1% | Limestone Community High School District 310 / 22,942 |
| 214. | 0.1% | Morris Community High School District 101 / 18,146 |
| 214. | 0.1% | Name N/A / 1,740 |
| 214. | 0.1% | Danville Community Consolidated School District 118 / 39,546 |
| 214. | 0.1% | Pontiac Community Consolidated School District 429 / 13,526 |
| 232. | 0.1% | Sycamore Community Unit School District 427 / 22,322 |
| 232. | 0.1% | Round Lake Community Unit School District 116 / 36,332 |
| 232. | 0.1% | Morton Community Unit School District 709 / 19,001 |
| 232. | 0.1% | Community High School District 218 / 121,659 |
| 232. | 0.1% | Huntley Consolidated School District 158 / 42,346 |
| 232. | 0.1% | North Shore School District 112 / 35,742 |
| 232. | 0.1% | Hawthorn Community Consolidated School District 73 / 30,381 |
| 232. | 0.1% | Name N/A / 4,792,985 |
| 232. | 0.1% | Oak Park and River Forest District 200 / 62,955 |
| 232. | 0.1% | Dunlap Community Unit School District 323 / 20,345 |
| 232. | 0.1% | Joliet Township High School District 204 / 129,192 |
| 232. | 0.1% | Bloomington School District 87 / 45,049 |
| 232. | 0.1% | Decatur School District 61 / 72,287 |
| 232. | 0.1% | Lake Park Community High School District 108 / 50,328 |
| 232. | 0.1% | Northfield Township High School District 225 / 85,444 |
| 232. | 0.1% | Galena Unit School District 120 / 5,910 |
| 232. | 0.1% | Adlai E. Stevenson High School District 125 / 60,968 |
| 249. | 0.1% | Oak Lawn-Hometown School District 123 / 34,761 |
| 249. | 0.1% | Centralia High School District 200 / 21,582 |
| 249. | 0.1% | Glenbard Township High School District 87 / 166,367 |
| 249. | 0.1% | River Ridge Community Unit School District 210 / 3,681 |
| 249. | 0.1% | Indian Springs School District 109 / 24,784 |
| 249. | 0.1% | Lake Forest School District 67 / 18,836 |
| 249. | 0.1% | New Trier Township High School District 203 / 59,899 |
| 249. | 0.1% | Park Ridge Consolidated Community School District 64 / 40,721 |
| 249. | 0.1% | Skokie School District 68 / 20,021 |
| 249. | 0.1% | Pontiac Township High School District 90 / 16,096 |
| 249. | 0.1% | Belleville Township High School District 201 / 108,596 |
| 249. | 0.1% | Bloom Township High School District 206 / 65,207 |
| 249. | 0.1% | Macomb Community Unit School District 185 / 22,522 |
| 262. | 0.1% | Aptakisic-Tripp Community Consolidated School District / 18,655 |
| 262. | 0.1% | Leyden Community High School District 212 / 64,152 |
| 262. | 0.1% | Libertyville Community High School District 128 / 49,998 |
| 262. | 0.1% | Aurora East Unit School District 131 / 81,256 |
| 262. | 0.1% | DuPage High School District 88 / 82,688 |
| 262. | 0.1% | Olympia Community Unit School District 16 / 11,473 |
| 262. | 0.1% | Community Consolidated School District 59 / 66,361 |
| 262. | 0.1% | Evanston Community Consolidated School District 65 / 82,936 |
| 262. | 0.1% | Tri-Valley Community Unit School District 3 / 4,607 |
| 262. | 0.1% | Evanston Township High School District 202 / 82,936 |
| 262. | 0.1% | Berwyn South School District 100 / 31,197 |
| 262. | 0.1% | Troy Community Consolidated School District 30C / 35,666 |
| 262. | 0.1% | Oak Park Elementary School District 97 / 51,781 |
| 262. | 0.1% | Chicago Public School District 299 / 2,702,420 |
| 262. | 0.1% | Bremen Community High School District 228 / 94,256 |
| 277. | 0.0% | Township High School District 211 / 235,114 |
| 277. | 0.0% | Valley View Community Unit School District 365U / 91,972 |
| 277. | 0.0% | Tolono Community Unit School District 7 / 9,762 |
| 277. | 0.0% | Township High School District 113 / 58,731 |
| 277. | 0.0% | Waukegan Community Unit School District 60 / 83,983 |
| 277. | 0.0% | Oswego Community Unit School District 308 / 74,841 |
| 277. | 0.0% | Lake Forest Community High School District 115 / 27,370 |
| 277. | 0.0% | Mattoon Community Unit School District 2 / 23,059 |
| 277. | 0.0% | Chicago Heights School District 170 / 24,925 |
| 277. | 0.0% | Lake Villa Community Consolidated School District 41 / 23,252 |
| 277. | 0.0% | McLean County Unit School District 5 / 94,106 |
| 288. | 0.0% | Oak Lawn Community High School District 229 / 39,686 |
| 288. | 0.0% | Salem Community High School District 600 / 15,160 |
| 288. | 0.0% | Proviso Township High School District 209 / 126,620 |
| 288. | 0.0% | Rochelle Township High School District 212 / 17,208 |
| 288. | 0.0% | Woodstock Community Unit School District 200 / 37,344 |
| 288. | 0.0% | Rockridge Community Unit School District 300 / 7,258 |
| 288. | 0.0% | Prairie Central Community Unit School District 8 / 11,458 |
| 288. | 0.0% | Grant Community High School District 124 / 36,070 |
| 288. | 0.0% | Paxton-Buckley-Loda Community Unit School District 10 / 8,867 |
| 288. | 0.0% | Will County School District 92 / 14,486 |
| 288. | 0.0% | Wilmette School District 39 / 25,592 |
| 288. | 0.0% | Consolidated High School District 230 / 154,708 |
| 288. | 0.0% | Farmington Central Community Unit School District 265 / 8,236 |
| 288. | 0.0% | Rockford School District 205 / 192,951 |
| 288. | 0.0% | LaGrange School District 105 / 12,677 |
| 288. | 0.0% | Marion Community Unit School District 2 / 28,098 |
| 288. | 0.0% | Argo Community High School District 217 / 40,342 |
| 288. | 0.0% | Mundelein Consolidated High School District 120 / 42,938 |
| 288. | 0.0% | North Palos School District 117 / 28,460 |
| 307. | 0.0% | School District U-46 / 232,134 |
| 307. | 0.0% | Midwest Central Community Unit School District 191 / 6,566 |
| 307. | 0.0% | Community Unit School District 200 / 78,818 |
| 307. | 0.0% | United Township High School District 30 / 41,098 |
| 307. | 0.0% | Maine Township High School District 207 / 144,996 |
| 307. | 0.0% | Niles Township Community High School District 219 / 95,129 |
| 307. | 0.0% | Quincy School District 172 / 50,972 |
| 307. | 0.0% | Cahokia Community Unit School District 187 / 19,432 |
| 315. | 0.0% | Homer Community Consolidated School District 33C / 29,811 |
| 315. | 0.0% | Reavis Township High School District 220 / 33,088 |
| 315. | 0.0% | Burbank School District 111 / 29,991 |
| 315. | 0.0% | Lockport Township High School District 205 / 75,533 |
| 315. | 0.0% | Bourbonnais School District 53 / 23,743 |
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.
