Post Offices List in Centralia City, Illinois:
| Centralia Post Office | 314 S Poplar St, Centralia, IL 62801 |
| Centralia Post Office | 314 S Poplar St, Centralia, IL 62801 |
| Centralia Post Office | 314 S Poplar St, Centralia, IL 62801 |
| Centralia Post Office | 314 S Poplar St, Centralia, IL 62801 |