Washington residents paid $11,584 to attend the four-year public institution this year – $193 more than the $11,391 charged for 2017-18.
Non-residents paid 122.9 percent more than residents this year, or $25,820. Their price tag grew 0 percent from $25,817 in 2017-18.
About 78 percent of the school's undergraduate population are Washington residents. About 20 percent are residents of other states and 2 percent are citizens of other countries.
Data shows 90 percent of full-time undergraduates who started school in 2015-16 received student financial aid in some form. In all, 3,716 students received grants or scholarships totaling $33.9 million and 1,979 students took out student loans totaling more than $13.3 million.
Including all undergraduates (31,478), 17,220 students used grants or scholarships totaling $164.1 million, and 10,769 students took out $70.7 million in federal student loans.