| Localité | Code postal |
|---|---|
| Schiller Park, Cook | 60176 |
| Skokie, Cook | 60076, 60077 |
| South Barrington, Cook | 60010 |
| South Chicago Heights, Cook | 60411 |
| South Holland, Cook | 60473 |
| South Suburban, Cook | 60499 |
| Steger, Cook | 60475 |
| Stickney, Cook | 60402 |
| Stock Yards, Cook | 60609 |
| Stone Park, Cook | 60165 |
| Streamwood, Cook | 60107 |
| Summit, Cook | 60501 |
| Summit Argo, Cook | 60501 |
| Techny, Cook | 60082 |
| Thornton, Cook | 60476 |
| Tinley Park, Cook | 60477, 60487 |
| Twenty Second Street, Cook | 60616 |
| University Park, Cook | 60466 |
| Westchester, Cook | 60154 |
| Western Springs, Cook | 60558 |
| Wheeling, Cook | 60090 |
| Willow Springs, Cook | 60480 |
| Wilmette, Cook | 60091 |
| Winnetka, Cook | 60093 |
| Worth, Cook | 60482 |