Post Offices List in Carthage City, New York:
| Carthage Post Office | 521 State St, Carthage, NY 13619 |
| Deer River Post Office | 10734 State Route 26, Carthage, NY 13619 |
| Carthage Post Office | 521 State St, Carthage, NY 13619 |
| Deer River Post Office | 10734 State Route 26, Carthage, NY 13619 |