Usps Columbia Main Post Office

Post office

6801 Oak Hall Lane, Columbia, MD 21045

(410) 381-4373

No Appointment Necessary - Mon-Fri (8:00am -4:00pm) Sat 8:00am - 3:00pm

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

Book at USPS Directions Facilities in Columbia Facilities in Maryland

Usps Columbia Main Post Office accepts new U.S. passport applications in person in Columbia, MD. First-time and child visits are booked on the USPS scheduler. Search ZIP 21045. How to apply · How to renew

Other facilities in Columbia

Hcls - East Columbia Branch Library