Post office locations in 21090
| Post Office | Address | Phone | Hours |
| LINTHICUM HEIGHTS | 515 S CAMP MEADE RD LINTHICUM HEIGHTS, MD 21090 - 9998 | 410-859-9886 | Mon-Fri 08:30 AM - 05:00 PM Sat 08:30 AM - 12:30 PM Sun Closed |
| Post Office | Address | Phone | Hours |
| LINTHICUM HEIGHTS | 515 S CAMP MEADE RD LINTHICUM HEIGHTS, MD 21090 - 9998 | 410-859-9886 | Mon-Fri 08:30 AM - 05:00 PM Sat 08:30 AM - 12:30 PM Sun Closed |