Merrimac Post Office

Address

79 E Main St, Merrimac, MA 01860

Phone

(978) 346-7400

Website

tools.usps.com/find-location.htm?y_source=1_MzM2ODE1NS00NDAtbG9jYXRpb24ud2Vic2l0ZQ%3D%3D&searchRadius=10&address=01860&locationType=po

Last checked September 23, 2026. Call ahead to confirm hours.

Listing details from Overture Maps open data.