Biology at California Polytechnic State University-San Luis Obispo
Bachelor's Degree
Analysis
Cal Poly SLO's biology program shows exactly why earnings trajectories matter more than starting salaries. While first-year graduates earn a modest $35,638—roughly on par with the state average—by year four they're making $63,237, a 77% jump that puts them well ahead of typical California biology grads. This growth pattern suggests the program's hands-on, polytechnic approach is translating into real career advancement, even if it doesn't immediately land graduates in high-paying positions.
The manageable debt load of $22,949 is actually lower than the national average for biology programs, creating a favorable debt-to-earnings ratio of 0.64. While Cal Poly ranks 60th percentile among California biology programs—meaning some UC campuses and privates produce higher earners—it's doing significantly better than the typical state school and costs substantially less than programs like University of San Diego (which produces $54K earners but likely comes with much steeper debt).
For parents, this represents a solid middle path: not the cheapest option, not the most elite outcomes, but a program that clearly builds momentum over time. The 30% admission rate indicates selectivity, and the strong four-year earnings suggest graduates are developing skills that employers value increasingly over time. If your child can handle the rigor and doesn't need immediate high earnings, this program builds toward strong mid-career prospects without crushing debt.
Where California Polytechnic State University-San Luis Obispo 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 California Polytechnic State University-San Luis Obispo graduates compare to all programs nationally
California Polytechnic State University-San Luis Obispo graduates earn $36k, placing them in the 72th 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 California
Biology bachelors's programs at peer institutions in California (75 total in state)
| School | Earnings (1yr) | Earnings (4yr) | Median Debt | Debt/Earnings |
|---|---|---|---|---|
| California Polytechnic State University-San Luis Obispo | $35,638 | $63,237 | $22,949 | 0.64 |
| University of San Diego | $54,223 | $53,473 | $25,000 | 0.46 |
| California State University-East Bay | $44,370 | $57,742 | $21,500 | 0.48 |
| Dominican University of California | $39,548 | — | $27,000 | 0.68 |
| California State University-San Marcos | $38,527 | $57,860 | $24,174 | 0.63 |
| University of San Francisco | $38,423 | $57,265 | $23,250 | 0.61 |
| National Median | $32,316 | — | $25,000 | 0.77 |
Other Biology Programs in California
Compare tuition, earnings, and debt across California schools
| School | In-State Tuition | Earnings (1yr) | Debt |
|---|---|---|---|
| University of San Diego San Diego | $56,444 | $54,223 | $25,000 |
| California State University-East Bay Hayward | $7,055 | $44,370 | $21,500 |
| Dominican University of California San Rafael | $50,666 | $39,548 | $27,000 |
| California State University-San Marcos San Marcos | $7,739 | $38,527 | $24,174 |
| University of San Francisco San Francisco | $58,222 | $38,423 | $23,250 |
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 California Polytechnic State University-San Luis Obispo, approximately 18% 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 129 graduates with reported earnings and 156 graduates with debt data. Small samples may not be representative.