Post office locations in 20777
| Post Office | Address | Phone | Hours |
| HIGHLAND | 12975 HIGHLAND RD HIGHLAND, MD 20777 - 9998 | 301-854-2418 | Mon-Fri 9:00am - 5:00pm Sat 9:00am - 12:00pm Sun Closed |
| Post Office | Address | Phone | Hours |
| HIGHLAND | 12975 HIGHLAND RD HIGHLAND, MD 20777 - 9998 | 301-854-2418 | Mon-Fri 9:00am - 5:00pm Sat 9:00am - 12:00pm Sun Closed |