Residency requirements.
As a public, state university, Washington State University has different tuition rates for state residents and non-residents. The rules governing who qualifies as a resident for tuition-paying purposes are determined by state law.
Establishing Washington state residency for tuition-paying purposes
If you are uncertain about whether you are a resident for tuition-paying purposes, you can find information and relevant links at the residency information Web page provided by the WSU Registrar's Office or contact the WSU Residency Officer at 509-335-5346.