Post office locations in 21649
| Post Office | Address | Phone | Hours |
| MARYDEL | 114 HALLTOWN RD MARYDEL, MD 21649 - 9998 | 410-482-8081 | Mon-Fri 8:00am - 12:00pm 1:00pm - 4:30pm Sat 10:00am - 12:00pm Sun Closed |
| Post Office | Address | Phone | Hours |
| MARYDEL | 114 HALLTOWN RD MARYDEL, MD 21649 - 9998 | 410-482-8081 | Mon-Fri 8:00am - 12:00pm 1:00pm - 4:30pm Sat 10:00am - 12:00pm Sun Closed |