Mailing on and off campus
Find out what you need to be able to mail anywhere, whether you’re using interdepartmental mail or USPS.
Student mail services
Need to track a package or find out how to address mail for residence halls? We have you covered.
WSU 4-digit delivery codes
Use our complete list of 4-digit delivery codes for addressing interdepartmental mail on the Pullman campus.
Track your package
Look up the delivery status for packages you’re expecting on the Pullman campus.