Post Offices List in Duxbury City, Massachusetts:
| Duxbury Post Office | 56 Depot St, Duxbury, MA 02332 |
| Snug Harbor Post Office | 455 Washington St, Duxbury, MA 02331 |
| Duxbury Post Office | 56 Depot St, Duxbury, MA 02332 |
| Snug Harbor Post Office | 455 Washington St, Duxbury, MA 02331 |