Post office locations in 02554
| Post Office | Address | Phone | Hours |
| NANTUCKET | 5 FEDERAL ST NANTUCKET, MA 02554 - 9998 | 508-228-4477 | Mon-Fri 08:30 AM - 05:00 PM Sat 08:30 AM - 12:30 PM Sun Closed |
| NANTUCKET CARRIER ANNEX | 155 OLD SOUTH RD NANTUCKET, MA 02554 - 9990 | 508-325-5987 |