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 8:30am - 5:00pm Sat 8:30am - 12:30pm Sun Closed |
| Post Office | Address | Phone | Hours |
| LINTHICUM HEIGHTS | 515 S CAMP MEADE RD LINTHICUM HEIGHTS, MD 21090 - 9998 | 410-859-9886 | Mon-Fri 8:30am - 5:00pm Sat 8:30am - 12:30pm Sun Closed |