Usps Gaithersburg Post Office

Post office

21 South Summit Avenue, Gaithersburg, MD 20877

(301) 208-3701

By Appointment Only -Monday - Thursday 10:00am - 3:00pm

Appointment required

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

Book at USPS Directions Facilities in Gaithersburg Facilities in Maryland

Usps Gaithersburg Post Office accepts new U.S. passport applications in person in Gaithersburg, MD. First-time and child visits are booked on the USPS scheduler. Search ZIP 20877. How to apply · How to renew

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