Usps Mount Rainier Post Office

Post office

3709 Rhode Island Avenue, Mount Rainier, MD 20712

(301) 699-8856

By Appointment only 9:00AM - 2:00PM (Monday - Friday)

Appointment required

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

Book at USPS Directions Facilities in Mount Rainier Facilities in Maryland

Usps Mount Rainier Post Office accepts new U.S. passport applications in person in Mount Rainier, MD. First-time and child visits are booked on the USPS scheduler. Search ZIP 20712. How to apply · How to renew