Mailing Services

    Here to help you with all of your mailing needs, both on and off campus.

    Contact Mailing Services at 509-335-2365 or

    Not only does WSU Mailing Services provide an interdepartmental mail system to move your correspondence around the Pullman campus, you also have convenient options to get your mail around the state, country, and world, whether it’s one package or a whole marketing campaign.

    Mailing on and off campus

    Find out what you need to be able to mail anywhere, whether you’re using interdepartmental mail or USPS.

    WSU 4-digit delivery codes

    Use our complete list of 4-digit delivery codes for addressing interdepartmental mail on the Pullman campus.

    Student mail services

    Need to track a package or find out how to address mail for residence halls? We have you covered.

    Track your package

    Look up the delivery status for packages you’re expecting on the Pullman campus.