List of US Post Office Stores in Amherst, MA Outlet Note Regular Brands US Post Office Massachusetts Amherst Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Amherst 15 Montague Rd (413) 549-0418 US Post Office outlet - Amherst 141 N Pleasant St (413) 256-0200 US Post Office outlet - Amherst 145 University Dr (413) 549-0523 People Also Viewed