Illinois residents paid $7,530 to attend the two-year public institution in both the 2016-17 and 2017-18 academic years.
Non-residents paid 63.7 percent more than residents this year, or $12,330. Their price tag was unchanged from $12,330 in 2016-17.
About 99 percent of the school's undergraduate population are Illinois residents. And about 1 percent are residents of other states.
Data shows 79 percent of full-time undergraduates who started school in 2015-16 received student financial aid in some form. In all, 118 students received grants or scholarships totaling $559,423 and 7 students took out student loans totaling more than $32,468.
Including all undergraduates, 1,675 students used grants or scholarships totaling $12.65 million.
Editor's note: A previous version of this story incorrectly described the cost of attendance, which includes both tuition and fees.