Post Offices List in Calumet City City, Illinois:
| Calumet City Post Office | 1200 Ring Rd, Calumet City, IL 60409 |
| Wentworth Avenue Post Office | 680 Wentworth Ave, Calumet City, IL 60409 |
| Calumet City Post Office | 1200 Ring Rd, Calumet City, IL 60409 |
| Wentworth Avenue Post Office | 680 Wentworth Ave, Calumet City, IL 60409 |