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Post Offices in Merrimack

Click on the Post Office from this list of 1 Post Offices in Merrimack to view the opening hours, phone number, drop-off times, services and other information.

1. USPS Post Office Merrimack (NH)

510 Daniel Webster Hwy

Merrimack, NH 03054

The Post Office is open Monday to Thursday and Saturday and Sunday from 12:01 am to 11:59 pm. It is closed on Friday.