Grantham Post Office

Post office

10 Willis Avenue, Grantham, NH 03753

Please call for an appointment at 603-863-2280. Hours are M-F 10am to 3pm.

Appointment required

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

Book at USPS Directions Facilities in Grantham Facilities in New Hampshire

Grantham Post Office accepts new U.S. passport applications in person in Grantham, NH. First-time and child visits are booked on the USPS scheduler. Search ZIP 03753. How to apply · How to renew