Usps Preston Post Office

Post office

301 Main Street, Preston, MD 21655

(410) 673-2166

By Appointment Only. Mon - Fri 9:00am - 2:00pm

Appointment required

Hours and addresses come from the State Department listing, updated November 2, 2026.

Book at USPS Directions Facilities in Preston Facilities in Maryland

Usps Preston Post Office accepts new U.S. passport applications in person in Preston, MD. First-time and child visits are booked on the USPS scheduler. Search ZIP 21655. How to apply · How to renew