Post Offices List in Fairhaven City, Massachusetts:
| Fairhaven Post Office | 13 William St, Fairhaven, MA 02719 |
| Fairhaven Carrier Annex Post Office | 4 Pequod Rd, Fairhaven, MA 02719 |
| Fairhaven Post Office | 13 William St, Fairhaven, MA 02719 |
| Fairhaven Carrier Annex Post Office | 4 Pequod Rd, Fairhaven, MA 02719 |