Illinois residents paid $5,700 to attend the two-year public institution in both the 2016-17 and 2017-18 academic years.
Non-residents paid 13.2 percent more than residents this year, or $6,450. Their price tag was unchanged from $6,450 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 82 percent of full-time undergraduates who started school in 2015-16 received student financial aid in some form. In all, 305 students received grants or scholarships totaling $1.5 million and 21 students took out student loans totaling more than $147,228.
Including all undergraduates, 1,090 students used grants or scholarships totaling $4.67 million.
Editor's note: A previous version of this story incorrectly described the cost of attendance, which includes both tuition and fees.