Merrimac Post Office

Post office

79 East Main St, Merrimac, MA 01860

Hours are not published. Call before you go.

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

Book at USPS Directions Facilities in Merrimac Facilities in Massachusetts

Merrimac Post Office accepts new U.S. passport applications in person in Merrimac, MA. First-time and child visits are booked on the USPS scheduler. Search ZIP 01860. How to apply · How to renew