Biology at Southern Illinois University-Carbondale
Bachelor's Degree
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
Programs in the upper-left quadrant (high earnings, low debt) offer the best value. Programs in the lower-right quadrant warrant careful consideration.
Earnings Distribution
How Southern Illinois University-Carbondale graduates compare to all programs nationally
Southern Illinois University-Carbondale graduates earn $28k, placing them in the 25th percentile of all biology bachelors programs nationally.
Earnings Over Time
How earnings evolve from 1 year to 4 years after graduation
Earnings trajectories vary significantly. Some programs show strong early returns that plateau; others start lower but accelerate. Consider where you want to be at year 4, not just year 1.
Compare to Similar Programs in Illinois
Biology bachelors's programs at peer institutions in Illinois (50 total in state)
| School | Earnings (1yr) | Earnings (4yr) | Median Debt | Debt/Earnings |
|---|---|---|---|---|
| Southern Illinois University-Carbondale | $28,206 | $49,849 | $27,000 | 0.96 |
| Governors State University | $43,641 | $45,671 | $31,250 | 0.72 |
| Northeastern Illinois University | $40,392 | $52,784 | $14,031 | 0.35 |
| Northern Illinois University | $38,137 | $48,556 | $23,630 | 0.62 |
| Southern Illinois University Edwardsville | $38,067 | $50,151 | $22,396 | 0.59 |
| Saint Xavier University | $37,977 | $46,068 | $26,939 | 0.71 |
| National Median | $32,316 | — | $25,000 | 0.77 |
Other Biology Programs in Illinois
Compare tuition, earnings, and debt across Illinois schools
| School | In-State Tuition | Earnings (1yr) | Debt |
|---|---|---|---|
| Governors State University University Park | $11,320 | $43,641 | $31,250 |
| Northeastern Illinois University Chicago | $12,383 | $40,392 | $14,031 |
| Northern Illinois University Dekalb | $12,700 | $38,137 | $23,630 |
| Southern Illinois University Edwardsville Edwardsville | $12,922 | $38,067 | $22,396 |
| Saint Xavier University Chicago | $36,840 | $37,977 | $26,939 |
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.