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 9:00am - 5:00pm Sat 9:00am - 1:00pm Sun Closed |
| Post Office | Address | Phone | Hours |
| WASHINGTON GROVE | 111 WASHINGTON GROVE LN WASHINGTON GROVE, MD 20880 - 9998 | 301-948-5009 | Mon-Fri 9:00am - 5:00pm Sat 9:00am - 1:00pm Sun Closed |