Cost of college in Illinois
In-state tuition at a public 4-year college in Illinois averages $14,676 a year, or $14,146 as a real net price after aid. Graduates earn a median $66,084 and owe about $19,816. The net price pays back in about 2.3 years.
How Illinois compares to the US
Illinois ranks #10 of 51 for public in-state tuition (#1 is the most expensive), and #5 of 51 for graduate earnings. It ranks #3 of 51 for payback, where #1 is the fastest.
| Metric | Illinois | US average | vs US |
|---|---|---|---|
| In-state tuition | $14,676 | $9,518 | +$5,158 |
| Out-of-state tuition | $25,427 | $23,652 | +$1,775 |
| Net price after aid | $14,146 | $13,788 | +$358 |
| Median earnings, 10 yrs out | $66,084 | $56,427 | +$9,657 |
| Median debt at graduation | $19,816 | $17,856 | +$1,960 |
Source: College Scorecard, U.S. Department of Education, 2026 release. Public 4-year institutions, aggregated to the state level and enrollment-weighted.
Does a degree in Illinois pay for itself?
Payback is the ROI figure this index adds: the years the college earnings premium takes to recoup the net price. A public 4-year degree in Illinois costs about $56,584 over four years at net price, and recoups in about 2.3 years from the roughly $24,284-a-year premium graduates earn over a high-school graduate (a $41,800 baseline). That ranks #3 of 51 states and DC for payback. See the methodology for how it is built.
Private nonprofit 4-year colleges in Illinois list about $44,829 in tuition and net out to about $24,281 after aid.
Frequently asked questions
How much does college cost in Illinois?
At a public 4-year college in Illinois, in-state tuition and fees average about $14,676 a year and out-of-state runs about $25,427. The net price after grants and scholarships, which also covers living costs, averages about $14,146. The national figures are $9,518 in-state and $13,788 net price.
What do college graduates in Illinois earn and owe?
Ten years after starting, students from Illinois's public 4-year colleges earn a median of about $66,084 a year and carry a median federal debt of about $19,816 at graduation, against a national median of $56,427 earnings and $17,856 debt.
Is college worth it in Illinois?
A public 4-year degree in Illinois costs about $56,584 over four years at net price and recoups in about 2.3 years from the roughly $24,284-a-year premium graduates earn over a high-school graduate (a $41,800 baseline). Nationally the payback is about 3.8 years.