Washington residents paid $4,460 to attend the four-year public institution this year $144 more than the $4,316 charged for 2016-17.
Non-residents paid 121.5 percent more than residents this year, or $9,878. Their price tag grew 2.7 percent from $9,618 in 2016-17.
About 98 percent of the school's undergraduate population are Washington residents. And about 2 percent are residents of other states.
Data shows 63 percent of full-time undergraduates who started school in 2015-16 received student financial aid in some form. In all, 163 students received grants or scholarships totaling $913,633 and 29 students took out student loans totaling more than $128,974.
Including all undergraduates, 1,509 students used grants or scholarships totaling $7.84 million. Another 466 took out $2.64 million in federal student loans.