College Scorecard data · Updated August 17, 2026
| Tuition | Difference | |
|---|---|---|
| Southern Illinois University-Carbondale (in-state) | $13,334 | — |
| IL average | $18,678 | -29% |
| National average | $18,082 | -26% |
In-state tuition at Southern Illinois University-Carbondale is $13,334 per year; out-of-state students pay $13,334.
Southern Illinois University-Carbondale in-state tuition is 29% below the IL average of $18,678.
National average in-state tuition is $18,082; Southern Illinois University-Carbondale is 26% below that.
$13,334 is the official in-state tuition published by College Scorecard for the most recent cohort year.