Southern Illinois University-Carbondale — ROI, Cost & Payback
Southern Illinois University-Carbondale charges a net price of $13,297/yr after aid — a 4-year total of $53,188. Graduates earn a median $53,390 ten years after entry, $5,030/yr above the $48,360 high-school baseline, clearing the total in 10.6 years — a 20-year net return of $47,412, a slow but positive payback. (Scorecard, 2026 · our math.)
| Measure | Value | Source |
|---|---|---|
| Net price (after aid) | $13,297/yr | Scorecard, 2026 |
| Total net cost (4 yrs) | $53,188 | our math |
| Median earnings, 10 yrs after entry | $53,390 | Scorecard, 2026 |
| Earnings premium over HS baseline | $5,030/yr | our math |
| Median debt (completers) | $21,543 | Scorecard, 2026 |
| Payback | 10.6 yrs | our math |
| 20-year net return | $47,412 | our math |
College Scorecard (2026 release), institution-level · payback and returns are our math.
How we compute this. Payback = total net cost ÷ annual earnings premium, where the premium is median earnings 10 years after entry minus the $48,360 baseline (BLS 2024 median for a high-school-diploma worker 25+). Total net cost = net price × 4 years. We do not discount future dollars. The institution-wide earnings figure blends every major — a specific program's payback can be far better or worse. Full method on the methodology page.