Post Offices List in Lemont City, Illinois:
| Lemont Annex Post Office | 15871 W 127th St, Lemont, IL 60439 |
| Lemont Post Office | 42 Stephen St, Lemont, IL 60439 |
| Lemont Annex Post Office | 15871 W 127th St, Lemont, IL 60439 |
| Lemont Post Office | 42 Stephen St, Lemont, IL 60439 |