Analysis
Southern Illinois University-Carbondale's biology program starts rough but rebounds significantly. That $28,206 first-year salary ranks in just the 25th percentile nationally and sits well below both Illinois's state median ($32,844) and the national median ($32,316). Within Illinois, this program performs in the 40th percentile—meaning six in ten biology programs in the state produce better immediate outcomes. For comparison, SIUC's sister campus in Edwardsville delivers starting salaries nearly $10,000 higher.
The positive surprise is earnings growth: graduates see a 77% jump to nearly $50,000 by year four, suggesting many eventually find their footing in research positions, lab work, or graduate programs. The $27,000 debt load is reasonable and sits in the 5th percentile nationally (meaning 95% of programs have higher debt). With first-year earnings almost covering the debt, financial distress isn't the primary concern here.
The real question is whether your student can weather that difficult first year. Many biology graduates take time to establish careers, but starting $4,600 below the state median means tighter budgets during a critical transition period. If your child needs stronger immediate earnings—whether to support themselves or begin loan repayment—other Illinois public universities show measurably better placement. If they're committed to SIUC for other reasons and can manage lean early years, the trajectory improves substantially.
Where Southern Illinois University-Carbondale Stands
Earnings vs. debt across all biology bachelors's programs nationally
Earnings Distribution
How Southern Illinois University-Carbondale graduates compare to all programs nationally
Earnings Over Time
How earnings evolve from 1 year to 4 years after graduation
| School | 1 Year | 4 Years | Growth |
|---|---|---|---|
| Southern Illinois University-Carbondale | $28,206 | $49,849 | +77% |
| Benedictine University | $29,215 | $58,750 | +101% |
| DePaul University | $30,750 | $56,990 | +85% |
| Aurora University | $32,691 | $55,327 | +69% |
| Eastern Illinois University | $31,278 | $54,609 | +75% |
Compare to Similar Programs in Illinois
Biology bachelors's programs at peer institutions in Illinois (50 total in state)
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| School | In-State Tuition | Earnings (1yr) | Earnings (4yr) | Median Debt | Debt/Earnings |
|---|---|---|---|---|---|
| $13,244 | $28,206 | $49,849 | $27,000 | 0.96 | |
| $11,320 | $43,641 | $45,671 | $31,250 | 0.72 | |
| $12,383 | $40,392 | $52,784 | $14,031 | 0.35 | |
| $12,700 | $38,137 | $48,556 | $23,630 | 0.62 | |
| $12,922 | $38,067 | $50,151 | $22,396 | 0.59 | |
| $36,840 | $37,977 | $46,068 | $26,939 | 0.71 | |
| National Median | — | $32,316 | — | $25,000 | 0.77 |
Career Paths
Occupations commonly associated with biology graduates
Natural Sciences Managers
Clinical Research Coordinators
Water Resource Specialists
Medical Scientists, Except Epidemiologists
Biological Science Teachers, Postsecondary
Forensic Science Technicians
Secondary School Teachers, Except Special and Career/Technical Education
Biological Technicians
Agricultural Technicians
Precision Agriculture Technicians
Food Science Technicians
Biological Scientists, All Other
About This Data
Source: U.S. Department of Education College Scorecard (October 2025 release)
Population: Graduates who received federal financial aid (Title IV grants or loans). At Southern Illinois University-Carbondale, approximately 37% of students receive Pell grants. Students who did not receive federal aid are not included in these figures.
Earnings: Median earnings from IRS W-2 data for graduates who are employed and not enrolled in further education, measured 1 year after completion. Earnings are pre-tax and include wages, salaries, and self-employment income.
Debt: Median cumulative federal loan debt at graduation. Does not include private loans or Parent PLUS loans borrowed on behalf of students.
Sample Size: Based on 51 graduates with reported earnings and 80 graduates with debt data. Small samples may not be representative.