Post office locations in 21562
| Post Office | Address | Phone | Hours |
| WESTERNPORT | 72 MAIN ST WESTERNPORT, MD 21562 - 9998 | 301-359-9261 | Mon-Fri 08:30 AM - 04:30 PM Sat 08:30 AM - 12:00 PM Sun Closed |
| Post Office | Address | Phone | Hours |
| WESTERNPORT | 72 MAIN ST WESTERNPORT, MD 21562 - 9998 | 301-359-9261 | Mon-Fri 08:30 AM - 04:30 PM Sat 08:30 AM - 12:00 PM Sun Closed |