| Rank | Portuguese as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 2.4% | Jacksonville School District 117 / 28,184 |
| 2. | 2.0% | Auburn Community Unit School District 10 / 6,990 |
| 3. | 1.9% | Hoyleton Consolidated School District 29 / 977 |
| 4. | 1.5% | Franklin Community Unit School District 1 / 2,004 |
| 5. | 1.3% | Miller Township Community Consolidated School District / 2,327 |
| 6. | 1.2% | Coal City Community Unit School District 1 / 11,131 |
| 7. | 1.1% | Illini Central Community Unit School District 189 / 4,718 |
| 8. | 1.1% | Pleasantdale School District 107 / 8,287 |
| 9. | 1.1% | Wethersfield Community Unit School District 230 / 3,974 |
| 10. | 1.0% | Batavia Unit School District 101 / 31,774 |
| 11. | 1.0% | Bradford Community Unit School District 1 / 1,654 |
| 12. | 1.0% | Winchester Community Unit School District 1 / 3,769 |
| 13. | 0.9% | Hoopeston Area Community Unit School District 11 / 7,178 |
| 14. | 0.8% | Edgar County Community Unit District 6 / 2,415 |
| 15. | 0.8% | West Lincoln-Broadwell Elementary School District 92 / 4,963 |
| 16. | 0.8% | Mount Olive Community Unit School District 5 / 3,362 |
| 17. | 0.8% | Belvidere Consolidated Unit School District 100 / 45,001 |
| 18. | 0.8% | De Soto Consolidated School District 86 / 1,900 |
| 19. | 0.8% | Damiansville School District 62 / 756 |
| 20. | 0.8% | Pleasant Plains Community Unit School District 8 / 8,049 |
| 21. | 0.7% | Allendale Community Consolidated School District 17 / 1,120 |
| 22. | 0.7% | Hillsboro Community Unit School District 3 / 14,713 |
| 23. | 0.7% | North Chicago School District 187 / 29,043 |
| 23. | 0.7% | Prairie Grove Community School District 46 / 7,259 |
| 25. | 0.6% | Rockton School District 140 / 11,945 |
| 26. | 0.6% | Scott-Morgan Consolidated Unit School District 2 / 1,485 |
| 27. | 0.6% | Triopia Community Unit School District 27 / 2,373 |
| 27. | 0.6% | Norwood Elementary School District 63 / 3,616 |
| 29. | 0.6% | Central School District 104 / 4,970 |
| 30. | 0.6% | St. Libory Consolidated School District 30 / 869 |
| 30. | 0.6% | Pontiac-William Holliday School District 105 / 7,796 |
| 32. | 0.5% | Riverton Community Unit School District 14 / 7,959 |
| 32. | 0.5% | Community Unit School District 300 / 111,782 |
| 34. | 0.5% | Paris-Union School District 95 / 8,469 |
| 34. | 0.5% | Oglesby Elementary School District 125 / 4,771 |
| 36. | 0.5% | Southwestern Community Unit School District 9 / 8,981 |
| 36. | 0.5% | Jasper Community Consolidated School District 17 / 1,457 |
| 38. | 0.5% | Clinton Community Unit School District 15 / 12,177 |
| 39. | 0.5% | Beardstown Community Unit School District 15 / 7,941 |
| 40. | 0.4% | Community Unit School District 16 / 6,213 |
| 40. | 0.4% | Cobden School Unit District 17 / 3,899 |
| 42. | 0.4% | Rockridge Community Unit School District 300 / 7,224 |
| 42. | 0.4% | Pawnee Community Unit School District 11 / 3,304 |
| 44. | 0.4% | Warrensburg-Latham Community Unit District 11 / 6,160 |
| 44. | 0.4% | Beecher City Community Unit School District 20 / 2,571 |
| 44. | 0.4% | Waverly Community Unit School District 6 / 1,885 |
| 47. | 0.4% | Somonauk Community Unit School District 432 / 5,089 |
| 47. | 0.4% | Springfield School District 186 / 113,609 |
| 47. | 0.4% | Carrollton Community Unit School District 1 / 4,147 |
| 47. | 0.4% | Tri-City Community Unit School District 1 / 3,191 |
| 51. | 0.4% | Triad Community Unit School District 2 / 21,195 |
| 52. | 0.4% | Gallatin Community Unit School District 7 / 5,212 |
| 52. | 0.4% | Forest Park School District 91 / 14,010 |
| 54. | 0.4% | St. Elmo Community Unit School District 202 / 2,784 |
| 54. | 0.4% | Oblong Community Unit School District 4 / 3,764 |
| 56. | 0.4% | Darien School District 61 / 16,179 |
| 56. | 0.4% | Herrin Community Unit School District 4 / 16,423 |
| 56. | 0.4% | Name N/A / 1,596 |
| 59. | 0.3% | Skokie School District 73-5 / 9,719 |
| 59. | 0.3% | Illini Bluffs Community Unit School District 327 / 6,133 |
| 61. | 0.3% | Thomasboro Community Consolidated School District 130 / 2,115 |
| 61. | 0.3% | LaGrange School District 102 / 25,438 |
| 63. | 0.3% | Carlinville Community Unit School District 1 / 9,633 |
| 63. | 0.3% | Williamsville Community Unit School District 15 / 7,871 |
| 63. | 0.3% | Wesclin Community Unit School District 3 / 7,971 |
| 66. | 0.3% | Shelbyville Community Unit School District 4 / 7,911 |
| 66. | 0.3% | Havana Community Unit School District 126 / 6,545 |
| 66. | 0.3% | Ludlow Community Consolidated School District 142 / 1,129 |
| 69. | 0.3% | River Forest School District 90 / 11,211 |
| 69. | 0.3% | Princeton Elementary School District 115 / 11,523 |
| 69. | 0.3% | Mount Prospect School District 57 / 20,638 |
| 69. | 0.3% | Lindop School District 92 / 4,011 |
| 73. | 0.3% | Carterville Community Unit School District 5 / 11,927 |
| 73. | 0.3% | Braceville School District 75 / 1,399 |
| 73. | 0.3% | Princeton High School District 500 / 12,376 |
| 73. | 0.3% | Leland Community Unit School District 1 / 1,738 |
| 73. | 0.3% | Lyons Township High School District 204 / 69,702 |
| 78. | 0.3% | Cambridge Community Unit School District 227 / 2,861 |
| 78. | 0.3% | Unity Point Community Consolidated School District 140 / 5,438 |
| 78. | 0.3% | Yorkville Community Unit School District 115 / 30,038 |
| 78. | 0.3% | Lincoln Community High School District 404 / 23,979 |
| 78. | 0.3% | Name N/A / 8,695 |
| 78. | 0.3% | Millburn Community Consolidated School District 24 / 8,008 |
| 84. | 0.3% | Bushnell-Prairie City Community Unit School District 170 / 4,230 |
| 84. | 0.3% | New Athens Community Unit School District 60 / 3,561 |
| 86. | 0.2% | Hononegah Community High School District 207 / 32,556 |
| 86. | 0.2% | Seneca Township High School District 160 / 7,356 |
| 86. | 0.2% | Zion Elementary School District 6 / 17,432 |
| 86. | 0.2% | Wood River-Hartford Elementary School District 15 / 6,110 |
| 86. | 0.2% | Galesburg Community Unit School District 205 / 34,850 |
| 91. | 0.2% | O'Fallon Township High School District 203 / 40,469 |
| 91. | 0.2% | Johnsburg Community Unit School District 12 / 12,447 |
| 91. | 0.2% | O'Fallon Community Consolidated School District 90 / 29,590 |
| 91. | 0.2% | Huntley Consolidated School District 158 / 43,647 |
| 95. | 0.2% | Sterling Community Unit District 5 / 21,850 |
| 95. | 0.2% | Staunton Community Unit School District 6 / 8,400 |
| 95. | 0.2% | Collinsville Community Unit School District 10 / 48,076 |
| 95. | 0.2% | Le Roy Community Unit School District 2 / 4,619 |
| 95. | 0.2% | Dixon Unit School District 170 / 22,133 |
| 100. | 0.2% | Farmington Central Community Unit School District 265 / 7,945 |
| 100. | 0.2% | Nashville Community High School District 99 / 8,905 |
| 100. | 0.2% | Queen Bee School District 16 / 17,773 |
| 100. | 0.2% | Rochester Community Unit School District 3A / 10,780 |
| 100. | 0.2% | Ball-Chatham Community Unit School District 5 / 27,509 |
| 100. | 0.2% | Tri-Point Community Unit School District 6-J / 3,173 |
| 106. | 0.2% | Indian Prairie Community Unit School District 204 / 128,486 |
| 106. | 0.2% | Silvis School District 34 / 5,498 |
| 106. | 0.2% | Iroquois County Community Unit School District 9 / 7,118 |
| 106. | 0.2% | Northwestern Community Unit School District 2 / 2,079 |
| 106. | 0.2% | Geneva Community Unit School District 304 / 29,781 |
| 106. | 0.2% | St. Charles Community Unit School District 303 / 68,412 |
| 112. | 0.2% | Lincoln Elementary School District 27 / 13,053 |
| 112. | 0.2% | Dwight Township High School District 230 / 6,859 |
| 112. | 0.2% | Dwight Common School District 232 / 6,628 |
| 112. | 0.2% | Oswego Community Unit School District 308 / 77,693 |
| 112. | 0.2% | Danville Community Consolidated School District 118 / 38,933 |
| 112. | 0.2% | Richland School District 88A / 9,948 |
| 112. | 0.2% | Antioch Community Consolidated School District 34 / 23,761 |
| 112. | 0.2% | Glencoe School District 35 / 8,696 |
| 112. | 0.2% | Stark County Community Unit School District 100 / 4,688 |
| 112. | 0.2% | Spoon River Valley Community Unit School District 4 / 2,505 |
| 112. | 0.2% | Charleston Community Unit School District 1 / 28,395 |
| 123. | 0.2% | Cumberland Community Unit School District 77 / 6,411 |
| 123. | 0.2% | Bethalto Consolidated Unit School District 8 / 15,879 |
| 123. | 0.2% | A-C Central Community Unit School District 262 / 2,574 |
| 123. | 0.2% | Cissna Park Community Unit School District 6 / 1,807 |
| 123. | 0.2% | Cicero School District 99 / 84,481 |
| 123. | 0.2% | Tuscola Community Unit School District 301 / 5,759 |
| 123. | 0.2% | Palatine Community Consolidated School District 15 / 119,447 |
| 123. | 0.2% | Dunlap Community Unit School District 323 / 21,236 |
| 131. | 0.2% | Bradley School District 61 / 13,139 |
| 131. | 0.2% | Benjamin School District 25 / 6,555 |
| 131. | 0.2% | Champaign Community Unit School District 4 / 95,918 |
| 131. | 0.2% | Community Consolidated School District 93 / 35,313 |
| 131. | 0.2% | Antioch Community High School District 117 / 44,953 |
| 131. | 0.2% | Lowpoint-Washburn Community Unit School District 21 / 2,511 |
| 137. | 0.2% | Rantoul Township High School District 193 / 17,660 |
| 137. | 0.2% | Kildeer Countryside Community Consolidated School District 96 / 23,374 |
| 137. | 0.2% | Hinsdale Community Consolidated School District 181 / 26,135 |
| 137. | 0.2% | Orion Community Unit School District 223 / 6,078 |
| 137. | 0.2% | Channahon School District 17 / 10,273 |
| 137. | 0.2% | Villa Grove Community Unit School District 302 / 3,973 |
| 137. | 0.2% | Big Hollow School District 38 / 15,095 |
| 137. | 0.2% | Benton Community Consolidated School District 47 / 10,031 |
| 145. | 0.2% | Jersey Community Unit School District 100 / 20,185 |
| 145. | 0.2% | South Fork School District 14 / 2,601 |
| 145. | 0.2% | South Pekin School District 137 / 1,830 |
| 145. | 0.2% | Oak Park and River Forest District 200 / 63,199 |
| 149. | 0.1% | North Pekin-Marquette Heights School District 102 / 4,954 |
| 149. | 0.1% | Rosemont Elementary School District 78 / 2,309 |
| 149. | 0.1% | Cook County School District 130 / 30,726 |
| 149. | 0.1% | Evanston Community Consolidated School District 65 / 83,353 |
| 149. | 0.1% | Urbana School District 116 / 50,963 |
| 149. | 0.1% | Evanston Township High School District 202 / 83,353 |
| 149. | 0.1% | McHenry Community Consolidated School District 15 / 42,581 |
| 149. | 0.1% | Gurnee School District 56 / 18,744 |
| 149. | 0.1% | Woodlawn Community Consolidated School District 4 / 2,771 |
| 149. | 0.1% | Vandalia Community Unit School District 203 / 11,080 |
| 159. | 0.1% | Effingham Community Unit School District 40 / 20,319 |
| 159. | 0.1% | Gillespie Community Unit School District 7 / 7,873 |
| 159. | 0.1% | Woodlawn Community High School District 205 / 3,230 |
| 159. | 0.1% | Pinckneyville School District 50 / 6,531 |
| 159. | 0.1% | Macomb Community Unit School District 185 / 22,464 |
| 159. | 0.1% | Warren Township High School District 121 / 68,666 |
| 159. | 0.1% | Tremont Community Unit School District 702 / 5,070 |
| 159. | 0.1% | Murphysboro Community Unit School District 186 / 15,544 |
| 159. | 0.1% | Hinsdale Township High School District 86 / 75,716 |
| 159. | 0.1% | Benton Consolidated High School District 103 / 12,420 |
| 159. | 0.1% | Niles Elementary School District 71 / 7,998 |
| 159. | 0.1% | Woodland Community Consolidated School District 50 / 50,954 |
| 159. | 0.1% | Rantoul City School District 137 / 12,838 |
| 159. | 0.1% | Community High School District 155 / 96,008 |
| 173. | 0.1% | Oak Grove School District 68 / 7,189 |
| 173. | 0.1% | Westchester School District 92-5 / 16,049 |
| 173. | 0.1% | Warren Community Unit School District 205 / 2,969 |
| 173. | 0.1% | Olympia Community Unit School District 16 / 11,585 |
| 173. | 0.1% | Community Consolidated School District 146 / 26,437 |
| 173. | 0.1% | Bradley-Bourbonnais Consolidated High School District 307 / 39,974 |
| 173. | 0.1% | Wheeling Community Consolidated School District 21 / 66,232 |
| 173. | 0.1% | Naperville Community Unit District 203 / 96,394 |
| 173. | 0.1% | J. Sterling Morton High School District 201 / 159,527 |
| 173. | 0.1% | Marshall Community Unit School District 2C / 8,115 |
| 173. | 0.1% | Township High School District 211 / 236,447 |
| 173. | 0.1% | Adlai E. Stevenson High School District 125 / 61,391 |
| 173. | 0.1% | Oak Park Elementary School District 97 / 51,988 |
| 186. | 0.1% | Crystal Lake Community Consolidated School District 47 / 62,372 |
| 186. | 0.1% | East Peoria School District 86 / 18,966 |
| 186. | 0.1% | Herscher Community Unit School District 2 / 10,651 |
| 186. | 0.1% | Carmi-White County Community Unit School District 5 / 9,150 |
| 186. | 0.1% | Morton Community Unit School District 709 / 18,942 |
| 186. | 0.1% | East Alton-Wood River Community High School District 14 / 13,730 |
| 186. | 0.1% | Downers Grove Grade School District 58 / 51,933 |
| 186. | 0.1% | Bourbonnais School District 53 / 23,144 |
| 186. | 0.1% | West Prairie Community Unit School District 103 / 4,809 |
| 186. | 0.1% | Aptakisic-Tripp Community Consolidated School District / 19,061 |
| 186. | 0.1% | Lake Bluff Elementary School District 65 / 8,103 |
| 197. | 0.1% | Limestone Community High School District 310 / 22,599 |
| 197. | 0.1% | McHenry Community High School District 156 / 45,604 |
| 197. | 0.1% | Troy Community Consolidated School District 30C / 36,092 |
| 197. | 0.1% | Peoria School District 150 / 101,620 |
| 197. | 0.1% | Community Consolidated School District 59 / 66,255 |
| 197. | 0.1% | Grant Community High School District 124 / 36,397 |
| 197. | 0.1% | Lincolnshire-Prairieview School District 103 / 13,006 |
| 197. | 0.1% | Western Springs School District 101 / 10,072 |
| 197. | 0.1% | Fisher Community Unit School District 1 / 3,622 |
| 197. | 0.1% | Steger School District 194 / 13,985 |
| 207. | 0.1% | Mokena School District 159 / 17,456 |
| 207. | 0.1% | Township High School District 214 / 253,649 |
| 207. | 0.1% | Palos Community Consolidated School District 118 / 23,432 |
| 207. | 0.1% | Berwyn South School District 100 / 30,676 |
| 207. | 0.1% | DeKalb Community Unit School District 428 / 52,506 |
| 207. | 0.1% | Berwyn North School District 98 / 26,086 |
| 207. | 0.1% | Mazon-Verona-Kinsman Elementary School District 2C / 2,799 |
| 207. | 0.1% | Zion-Benton Township High School District 126 / 44,560 |
| 207. | 0.1% | Woodridge School District 68 / 33,075 |
| 207. | 0.1% | Germantown Hills School District 69 / 6,329 |
| 207. | 0.1% | Frankfort Community Consolidated School District 157C / 17,716 |
| 207. | 0.1% | Gardner-South Wilmington Township High School District / 4,037 |
| 207. | 0.1% | Alton Community Unit School District 11 / 48,514 |
| 207. | 0.1% | Aurora West Unit School District 129 / 75,509 |
| 207. | 0.1% | Sangamon Valley Community Unit School District 9 / 4,136 |
| 207. | 0.1% | Waterloo Community Unit School District 5 / 17,772 |
| 207. | 0.1% | Fieldcrest Community Unit School District 6 / 6,842 |
| 207. | 0.1% | Mattoon Community Unit School District 2 / 23,177 |
| 225. | 0.1% | Kankakee School District 111 / 32,510 |
| 225. | 0.1% | Pinckneyville Community High School District 101 / 10,799 |
| 225. | 0.1% | Kewanee Community Unit School District 229 / 10,897 |
| 225. | 0.1% | Edwardsville Community Unit School District 7 / 51,131 |
| 225. | 0.1% | Rankin Community School District 98 / 3,228 |
| 225. | 0.1% | North Shore School District 112 / 35,827 |
| 225. | 0.1% | Freeport School District 145 / 30,082 |
| 225. | 0.1% | LaSalle-Peru Township High School District 120 / 28,956 |
| 225. | 0.1% | Carbondale Community High School District 165 / 37,544 |
| 225. | 0.1% | Kirby School District 140 / 35,585 |
| 225. | 0.1% | Marion Community Unit School District 2 / 27,844 |
| 225. | 0.1% | Community High School District 94 / 41,834 |
| 225. | 0.1% | Community High School District 99 / 110,458 |
| 225. | 0.1% | West Chicago School District 33 / 30,853 |
| 225. | 0.1% | Franklin Park School District 84 / 11,086 |
| 240. | 0.1% | Wauconda Community Unit School District 118 / 27,619 |
| 240. | 0.1% | Meridian Community Unit School District 101 / 3,649 |
| 240. | 0.1% | North Greene Unit School District 3 / 6,089 |
| 240. | 0.1% | Streator Elementary School District 44 / 16,545 |
| 240. | 0.1% | Proviso Township High School District 209 / 126,972 |
| 240. | 0.1% | Name N/A / 4,816,938 |
| 240. | 0.1% | Fairfield Community High School District 225 / 10,034 |
| 240. | 0.1% | Glenbard Township High School District 87 / 166,784 |
| 240. | 0.1% | Bloomington School District 87 / 44,445 |
| 240. | 0.1% | Winnetka School District 36 / 12,008 |
| 240. | 0.1% | Streator Township High School District 40 / 18,378 |
| 240. | 0.1% | Decatur School District 61 / 71,435 |
| 240. | 0.1% | East Peoria Community High School District 309 / 26,544 |
| 253. | 0.1% | Community Unit School District 200 / 78,843 |
| 253. | 0.1% | New Trier Township High School District 203 / 60,357 |
| 253. | 0.1% | Park Forest School District 163 / 15,658 |
| 253. | 0.1% | Taylorville Community Unit School District 3 / 18,760 |
| 253. | 0.1% | Bloomingdale School District 13 / 13,521 |
| 253. | 0.1% | Sycamore Community Unit School District 427 / 22,208 |
| 253. | 0.1% | Oak Lawn-Hometown School District 123 / 35,152 |
| 253. | 0.1% | Winnebago Community Unit School District 323 / 8,216 |
| 253. | 0.1% | River Ridge Community Unit School District 210 / 3,566 |
| 262. | 0.1% | Aurora East Unit School District 131 / 84,673 |
| 262. | 0.1% | Valley View Community Unit School District 365U / 92,995 |
| 262. | 0.1% | LaGrange School District 105 / 12,573 |
| 262. | 0.1% | Chicago Public School District 299 / 2,712,608 |
| 262. | 0.1% | Waukegan Community Unit School District 60 / 83,647 |
| 262. | 0.1% | Villa Park School District 45 / 36,938 |
| 262. | 0.1% | Cahokia Community Unit School District 187 / 18,889 |
| 262. | 0.1% | Marquardt School District 15 / 26,458 |
| 262. | 0.1% | Township High School District 113 / 58,572 |
| 262. | 0.1% | Highland Community Unit School District 5 / 18,392 |
| 262. | 0.1% | Rock Island School District 41 / 45,317 |
| 262. | 0.1% | Niles Township Community High School District 219 / 96,278 |
| 262. | 0.1% | Mascoutah Community Unit School District 19 / 17,996 |
| 262. | 0.1% | Arthur Community Unit School District 305 / 7,681 |
| 262. | 0.1% | Tri-Valley Community Unit School District 3 / 4,882 |
| 262. | 0.1% | Ottawa Township High School District 140 / 31,237 |
| 262. | 0.1% | Schaumburg Community Consolidated School District 54 / 133,914 |
| 262. | 0.1% | School District U-46 / 233,909 |
| 280. | 0.0% | Community High School District 218 / 121,995 |
| 280. | 0.0% | Belleville Township High School District 201 / 108,125 |
| 280. | 0.0% | Midwest Central Community Unit School District 191 / 6,175 |
| 280. | 0.0% | Cary Community Consolidated School District 26 / 22,111 |
| 280. | 0.0% | Consolidated High School District 230 / 157,389 |
| 280. | 0.0% | Wilmette School District 39 / 26,102 |
| 280. | 0.0% | Freeburg Community High School District 77 / 13,146 |
| 280. | 0.0% | Joliet Township High School District 204 / 128,441 |
| 280. | 0.0% | Arlington Heights School District 25 / 51,105 |
| 280. | 0.0% | Woodstock Community Unit School District 200 / 37,706 |
| 280. | 0.0% | Elmhurst School District 205 / 47,454 |
| 280. | 0.0% | Massac Unit School District 1 / 13,609 |
| 280. | 0.0% | Minooka Community High School District 111 / 38,611 |
| 280. | 0.0% | Metamora Township High School District 122 / 16,360 |
| 280. | 0.0% | Glenview Community Consolidated School District 34 / 41,222 |
| 280. | 0.0% | Lincoln Way Community High School District 210 / 105,219 |
| 280. | 0.0% | McLean County Unit School District 5 / 97,056 |
| 280. | 0.0% | Lockport Township High School District 205 / 76,156 |
| 280. | 0.0% | Lake Villa Community Consolidated School District 41 / 24,136 |
| 299. | 0.0% | Pontiac Community Consolidated School District 429 / 13,646 |
| 299. | 0.0% | West Washington County Community Unit District 10 / 4,012 |
| 299. | 0.0% | Des Plaines Community Consolidated School District 62 / 51,990 |
| 299. | 0.0% | Park Ridge Consolidated Community School District 64 / 40,764 |
| 299. | 0.0% | Central Community High School District 71 / 16,730 |
| 299. | 0.0% | Prairie Central Community Unit School District 8 / 11,089 |
| 299. | 0.0% | United Township High School District 30 / 39,937 |
| 299. | 0.0% | Pontiac Township High School District 90 / 16,267 |
| 299. | 0.0% | Oak Lawn Community High School District 229 / 40,564 |
| 299. | 0.0% | Libertyville Community High School District 128 / 50,244 |
| 299. | 0.0% | Lake Forest Community High School District 115 / 27,017 |
| 299. | 0.0% | DuPage High School District 88 / 83,355 |
| 299. | 0.0% | Plainfield School District 202 / 122,136 |
| 299. | 0.0% | Quincy School District 172 / 51,109 |
| 299. | 0.0% | Bremen Community High School District 228 / 94,083 |
| 299. | 0.0% | Pekin Community High School District 303 / 45,857 |
| 315. | 0.0% | Hawthorn Community Consolidated School District 73 / 30,575 |
| 315. | 0.0% | Maine Township High School District 207 / 146,026 |
| 315. | 0.0% | Midland Community Unit School District 7 / 5,510 |
| 315. | 0.0% | Northfield Township High School District 225 / 86,734 |
| 315. | 0.0% | Bloom Township High School District 206 / 64,695 |
| 315. | 0.0% | Addison School District 4 / 38,180 |
| 315. | 0.0% | Skokie School District 68 / 20,236 |
| 315. | 0.0% | Leyden Community High School District 212 / 64,439 |
| 315. | 0.0% | Homer Community Consolidated School District 33C / 29,870 |
| 315. | 0.0% | Joliet Public School District 86 / 83,967 |
| 315. | 0.0% | Will County School District 92 / 14,725 |
| 315. | 0.0% | Orland School District 135 / 56,257 |
| 315. | 0.0% | Pikeland Community Unit School District 10 / 8,684 |
| 315. | 0.0% | New Lenox School District 122 / 38,889 |
| 329. | 0.0% | Lake Park Community High School District 108 / 50,869 |
| 329. | 0.0% | Carlyle Community Unit School District 1 / 9,775 |
| 329. | 0.0% | Paxton-Buckley-Loda Community Unit School District 10 / 8,485 |
| 329. | 0.0% | Rich Township High School District 227 / 70,027 |
| 329. | 0.0% | Maywood-Melrose Park-Broadview School District 89 / 44,483 |
| 329. | 0.0% | River Grove School District 85-5 / 7,881 |
| 329. | 0.0% | Rockford School District 205 / 191,430 |
| 329. | 0.0% | Evergreen Park Community High School District 231 / 19,924 |
| 329. | 0.0% | Evergreen Park Elementary School District 124 / 19,924 |
| 329. | 0.0% | Lombard School District 44 / 35,594 |
| 339. | 0.0% | Mundelein Consolidated High School District 120 / 44,244 |
| 339. | 0.0% | Round Lake Community Unit School District 116 / 36,177 |
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.
