Post office locations in 20838
| Post Office | Address | Phone | Hours |
| BARNESVILLE | 22110 BEALLSVILLE RD BARNESVILLE, MD 20838 - 9998 | 301-972-8153 | Mon-Fri 10:00am - 1:30pm 2:30pm - 5:00pm Sat 9:00am - 12:00pm Sun Closed |
| Post Office | Address | Phone | Hours |
| BARNESVILLE | 22110 BEALLSVILLE RD BARNESVILLE, MD 20838 - 9998 | 301-972-8153 | Mon-Fri 10:00am - 1:30pm 2:30pm - 5:00pm Sat 9:00am - 12:00pm Sun Closed |