Post office locations in 20880
| Post Office | Address | Phone | Hours |
| WASHINGTON GROVE | 111 WASHINGTON GROVE LN WASHINGTON GROVE, MD 20880 - 9998 | 301-948-5009 | Mon-Fri 09:00 AM - 05:00 PM Sat 09:00 AM - 01:00 PM Sun Closed |
| Post Office | Address | Phone | Hours |
| WASHINGTON GROVE | 111 WASHINGTON GROVE LN WASHINGTON GROVE, MD 20880 - 9998 | 301-948-5009 | Mon-Fri 09:00 AM - 05:00 PM Sat 09:00 AM - 01:00 PM Sun Closed |