Post Offices List in Newburyport City, Massachusetts:
| Newburyport Post Office | 61 Pleasant St, Newburyport, MA 01950 |
| Newburyport Carrier Annex Post Office | 12 Malcolm Hoyt Dr, Newburyport, MA 01950 |
| Newburyport Post Office | 61 Pleasant St, Newburyport, MA 01950 |
| Newburyport Carrier Annex Post Office | 12 Malcolm Hoyt Dr, Newburyport, MA 01950 |