Mail Stop Codes (MSC) help your packages get to the right location. They represent the location of your department, office, or residence hall based on a system within Mail & Receiving Services. When you include the correct MSC, it helps our staff sort and deliver your items more efficiently and accurately.
Find Your Mail Stop Code
Students
Find your MSC in the WashU Housing Portal. Include your MSC on all mail delivered to you including from friends or family.
Faculty & Staff
Faculty and staff receiving packages, addressing mail, or sending intra-campus mail can find their MSC in Workday. Your Mail Stop Code = Campus Box Number (0000) – Building Number (00) – Floor Number or Suite Number (0000)