Zip Code | City | Population |
|---|---|---|
| 60148 | Lombard | 52,598 |
| 60126 | Elmhurst | 48,032 |
| 60540 | Naperville | 42,756 |
| 60188 | Carol Stream | 42,219 |
| 60103 | Bartlett | 42,047 |
| 60504 | Aurora | 39,128 |
| 60137 | Glen Ellyn | 38,945 |
| 60565 | Naperville | 38,942 |
| 60563 | Naperville | 38,702 |
| 60133 | Hanover Park | 37,222 |
| 60101 | Addison | 37,175 |
| 60185 | West Chicago | 34,049 |
| 60517 | Woodridge | 33,282 |
| 60139 | Glendale Heights | 33,161 |
| 60189 | Wheaton | 31,036 |
| 60181 | Villa Park | 30,973 |
| 60187 | Wheaton | 29,258 |
| 60532 | Lisle | 29,135 |
| 60515 | Downers Grove | 29,112 |
| 60527 | Willowbrook | 28,983 |
| 60516 | Downers Grove | 28,617 |
| 60559 | Westmont | 24,411 |
| 60172 | Roselle | 24,016 |
| 60108 | Bloomingdale | 23,647 |
| 60502 | Aurora | 23,056 |
| 60561 | Darien | 22,997 |
| 60106 | Bensenville | 20,321 |
| 60521 | Hinsdale | 18,102 |
| 60555 | Warrenville | 14,436 |
| 60191 | Wood Dale | 14,193 |
| 60190 | Winfield | 11,652 |
| 60143 | Itasca | 11,645 |
| 60523 | Oak Brook | 10,179 |
| 60514 | Clarendon Hills | 9,691 |
| 60157 | Medinah | 2,550 |
| 60184 | Wayne | 2,220 |
| 60519 | Eola | 70 |