Mechanical Engineering at California Polytechnic State University-San Luis Obispo
Bachelor's Degree
Analysis
Cal Poly San Luis Obispo's mechanical engineering program launches graduates into strong earnings—$83,011 in the first year—that place them in the 95th percentile nationally. That's $12,000 above what the typical mechanical engineering grad earns and competitive with what Berkeley and USC graduates make. With just $20,500 in median debt, the debt-to-earnings ratio of 0.25 means graduates can reasonably pay off loans in under three months of work, one of the cleaner financial pictures you'll find in engineering.
Here's the context that matters for California families: while this program ranks exceptionally well nationally, it sits at the 60th percentile among California's 29 mechanical engineering programs. That's not a weakness—it reflects how strong California's engineering schools are overall. Cal Poly still outearns the state median by over $10,000 and costs less in debt than the state average. The 17% earnings growth to nearly $98,000 by year four shows steady career progression.
For families weighing Cal Poly against more expensive private options or even some UC campuses, the math here is straightforward. Your child gets top-tier earning potential with minimal debt burden, backed by a robust sample size that confirms these outcomes are reliable. The 30% admission rate means it's selective enough to ensure strong peers and recruiting, but not so exclusive that admission becomes a lottery.
Where California Polytechnic State University-San Luis Obispo Stands
Earnings vs. debt across all mechanical engineering 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 $83k, placing them in the 95th percentile of all mechanical engineering 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
Mechanical Engineering bachelors's programs at peer institutions in California (29 total in state)
| School | Earnings (1yr) | Earnings (4yr) | Median Debt | Debt/Earnings |
|---|---|---|---|---|
| California Polytechnic State University-San Luis Obispo | $83,011 | $97,466 | $20,500 | 0.25 |
| California State University Maritime Academy | $92,315 | $101,325 | $19,690 | 0.21 |
| University of California-Berkeley | $88,497 | $98,455 | $13,200 | 0.15 |
| University of Southern California | $83,356 | $93,001 | $17,500 | 0.21 |
| Santa Clara University | $81,865 | $99,067 | $19,500 | 0.24 |
| University of California-Santa Barbara | $81,108 | $90,072 | $15,908 | 0.20 |
| National Median | $70,744 | — | $24,755 | 0.35 |
Other Mechanical Engineering Programs in California
Compare tuition, earnings, and debt across California schools
| School | In-State Tuition | Earnings (1yr) | Debt |
|---|---|---|---|
| California State University Maritime Academy Vallejo | $7,672 | $92,315 | $19,690 |
| University of California-Berkeley Berkeley | $14,850 | $88,497 | $13,200 |
| University of Southern California Los Angeles | $68,237 | $83,356 | $17,500 |
| Santa Clara University Santa Clara | $59,241 | $81,865 | $19,500 |
| University of California-Santa Barbara Santa Barbara | $14,965 | $81,108 | $15,908 |
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 235 graduates with reported earnings and 213 graduates with debt data. Small samples may not be representative.