Washington residents paid $4,137 to attend the four-year public institution this year $78 more than the $4,059 charged for 2016-17.
Non-residents paid 129.3 percent more than residents this year, or $9,486. Their price tag grew 0.9 percent from $9,403 in 2016-17.
About 99 percent of the school's undergraduate population are Washington residents. And about 1 percent are residents of other states.
Data shows 42 percent of full-time undergraduates who started school in 2015-16 received student financial aid in some form. In all, 45 students received grants or scholarships totaling $269,521 and 19 students took out student loans totaling more than $112,824.
Including all undergraduates, 957 students used grants or scholarships totaling $5.26 million. Another 547 took out $3.56 million in federal student loans.