| Locality | Post Code |
|---|---|
| North Suburban, DuPage | 60199 |
| Northwoods, DuPage | 60185 |
| Oak Brook, DuPage | 60522, 60523 |
| Oak Brook Mall, DuPage | 60521 |
| Oakbrook Terrace, DuPage | 60181 |
| Ontarioville, DuPage | 60103 |
| Roselle, DuPage | 60172 |
| Villa Park, DuPage | 60181 |
| Warrenville, DuPage | 60555, 60563 |
| Wayne, DuPage | 60184 |
| West Chicago, DuPage | 60185 |
| Westmont, DuPage | 60559 |
| Wheaton, DuPage | 60187, 60189 |
| Willowbrook, DuPage | 60527 |
| Winfield, DuPage | 60190 |
| Wood Dale, DuPage | 60191, 60399 |
| Woodridge, DuPage | 60517 |