California Polytechnic State University-San Luis Obispo
San Luis Obispo, California · Public · 31.3% acceptance rate
ROI Score: 96/100 · Exceptional Value
Data: 2024-25 College Scorecard release
California Polytechnic State University-San Luis Obispo scores 96 (Exceptional Value) on the CampusROI scale. The fundamentals are exceptional: $54,700 average 6-year earnings, a 3.7-year payback period, 86.4% completion rate, 91.5% repayment rate, and a debt-to-earnings ratio of 0.338. In-state tuition is $13,596 and net price is $16,665. Median debt of $18,500 is low. Cal Poly SLO serves 21,996 students with a learn-by-doing philosophy and a 31.3% admission rate. The program depth is exceptional: Computer Engineering (129 grads, A, $111,560 yr1), Computer Science (202 grads, A, $111,141 yr1), Construction Management (150 grads, A, $92,785 yr1), Mechanical Engineering (278 grads, A, $83,011 yr1), and Business Administration (689 grads, A, $71,876 yr1) are all A-grade programs. Even programs outside the STEM core - Agriculture, Graphic Communications, Journalism, and Communication - deliver B-range outcomes. Scorecard does not report SAT/ACT ranges, but the 31.3% admission rate signals meaningful selectivity for a public university.
Graduates recoup their total investment in just 3.7 years. The median across the schools we score is about 12 years.
California Polytechnic State University-San Luis Obispo
Quick Numbers
| In-state tuition + fees | $13,596/yr |
| Out-of-state tuition + fees | $34,665/yr |
| Average net price | $16,665/yr |
| Total 4-year cost (net) | $66,660 |
| Median earnings (10yr post-entry) | $90,768 |
| Average earnings (6yr post-entry) | $54,700 |
| Median debt at graduation | $18,500 |
| Estimated monthly loan payment | $196 |
| Estimated payback period | 3.7 years |
| 6-year graduation rate | 86.4% |
| Undergraduate enrollment | 21,996 |
Data as of 2024-2025. Source: College Scorecard API (U.S. Department of Education).
The Full Financial Picture
The first number you'll see is the sticker price: $13,596/year ($34,665/year out-of-state), which covers tuition and fees only. The net price counts books, supplies, and average living costs on top of tuition and fees, then subtracts grants and scholarships. For the average student here it comes to $16,665/year, or roughly $66,660 over four years. That's the number to plan around.
What you actually pay depends a lot on what your family earns. Families making under $30,000/year pay an average of $7,529/year here, while families earning over $110,000 pay $27,772/year.
Among graduates who borrowed, the median federal loan debt from this school is $18,500, which works out to about $196 a month on the standard 10-year repayment plan. Our debt-to-earnings ratio divides that debt by average earnings six years after entry ($54,700) and comes to 0.34, which in our view is comfortably manageable.
Net Price by Family Income
What families actually pay after grants and scholarships, by income bracket.
| Family Income | Avg Net Price/Year |
|---|---|
| $0 - $30,000 | $7,529 |
| $30,001 - $48,000 | $7,253 |
| $48,001 - $75,000 | $9,896 |
| $75,001 - $110,000 | $15,786 |
| $110,001+ | $27,772 |
Cost by Income Bracket Explained
Lower-income families (under $30K)
The 0-30000 income bracket pays $7,529 per year. This low-income net price sits against $54,700 average 6-year earnings and a 3.7-year payback. Low-income students who complete a STEM or business program at $7,529/year achieve an extraordinary return. The 86.4% completion rate further mitigates dropout risk.
Middle-income families ($30K-$110K)
The 48001-75000 bracket pays $9,896 and the 75001-110000 bracket pays $15,786. At $15,786 for upper-middle-income, the financial case is still excellent. Middle-income families paying $10-16k annually for a program that delivers $70-110k in year-one earnings are getting exceptional value.
Higher-income families ($110K+)
The 110001-plus bracket pays $27,772 per year. Full-pay for Cal Poly SLO is roughly $111,000 over four years. Against $54,700 average 6-year earnings and a 3.7-year payback, the full-pay financial case is strong - particularly for engineering, CS, and business graduates who earn $70-110k in year one. The out-of-state tuition of $34,665 (versus $13,596 in-state) creates a different cost equation for non-California residents.
Earnings by Major
Top 10 most popular majors at California Polytechnic State University-San Luis Obispo with available earnings data.
| Major | Median Earnings | Grade |
|---|---|---|
| Business Administration, Management, and Operations | $110,902 | A |
| Mechanical Engineering | $106,750 | A |
| Computer Science | $154,784 | A |
| Biology | $69,854 | C |
| Electrical Engineering | $125,240 | B+ |
| Animal Sciences | $54,805 | C |
| Construction Management | $118,331 | A |
| Civil Engineering | $101,072 | B+ |
| Psychology | $60,466 | D |
| Computer Engineering | $148,950 | A |
Earnings reflect median 4-year post-completion (or 1-year where 4-year unavailable). Grades based on debt-to-earnings ratio.
Program Analysis
Why these programs deliver their earnings outcomes.
Computer Engineering
Computer Engineering (129 graduates) earns $111,560 year one and $148,950 at year four, with an A grade (debt-to-earnings 0.184, median debt $20,556). Year-one earnings are $112k. The four-year trajectory to $149k reflects placement into Bay Area and Southern California semiconductor, systems, and software roles. The debt ratio of 0.184 is negligible relative to earnings - a textbook example of an exceptional ROI program at a low-cost public.
Computer Science
Computer Science (202 graduates) earns $111,141 year one and $154,784 at year four, with an A grade (debt-to-earnings 0.174, median debt $19,298). Year-one earnings match Computer Engineering, confirming Cal Poly SLO CS graduates compete in the software employment market. The four-year figure of $155k is consistent with senior software engineering and engineering management at major technology firms.
Construction Management
Construction Management (150 graduates) earns $92,785 year one and $118,331 at year four, with an A grade (debt-to-earnings 0.204, median debt $18,955). Year-one earnings of $93k for construction management are exceptional nationally. Cal Poly SLO's CM program feeds California's large commercial and infrastructure construction sector. The debt ratio of 0.204 is very low at a $16,665 net price.
Business Administration, Management, and Operations
Business Administration (689 graduates) earns $71,876 year one and $110,902 at year four, with an A grade (debt-to-earnings 0.237, median debt $17,000). Year-one earnings of $72k and a four-year figure of $111k are reported for Cal Poly SLO Business. The Orfalea College of Business provides the California corporate network driving these outcomes.
Mechanical Engineering
Mechanical Engineering (278 graduates) earns $83,011 year one and $106,750 at year four, with an A grade (debt-to-earnings 0.247, median debt $20,500). Strong outcomes reflecting placement into aerospace, defense, and automotive engineering roles in California.
How Graduates Do
Earnings
Loan Repayment
| Metric | This School | Median of schools we score |
|---|---|---|
| 1-year repayment | 88.3% | 68.8% |
| 3-year repayment | 91.5% | 73.6% |
| 5-year repayment | 88.5% | 67.7% |
| 7-year repayment | 89.9% | 72.8% |
Completion Rate
Trends Over Time
How California Polytechnic State University-San Luis Obispo’s cost and outcomes have moved across College Scorecard releases (2009-2024).
Average Net Price
Completion Rate
Median Earnings, 10 Years After Entry (as reported)
Earnings reflect borrowers measured 10 years after entry and publish on an irregular cadence with a multi-year reporting lag, so this series shows only the years the Department of Education reported - the data is never interpolated.
Source: U.S. Department of Education College Scorecard, release years shown. Net price and completion are reported annually.
Admissions Snapshot
| Acceptance rate | 31.3% |
| Enrollment | 21,996 |
| Pell Grant recipients | 19.2% |
| Avg faculty salary (monthly) | $12,673 |
Scorecard does not report test score ranges. The learn-by-doing philosophy means admissions evaluates demonstrated technical competency and interest in applied fields. Students admitted to Cal Poly typically have strong academic records in STEM or professional subjects. Competition is highest for engineering, computer science, and architecture; less intense for liberal arts and general education programs.
Compared to Similar Schools
Peer institutions matched by type, size, and selectivity.
The combination of 31.3% selectivity, hands-on curriculum, and California employment market proximity is structurally difficult to replicate.
| School | ROI | Net Price | 10yr Earnings |
|---|---|---|---|
| California Polytechnic State University-San Luis Obispo (this school) | 96 | $16,665 | $90,768 |
| University of North Carolina at Chapel Hill | 94 | $11,655 | $72,200 |
| University of Washington-Seattle Campus | 94 | $14,091 | $78,466 |
| Clemson University | 86 | $22,253 | $71,513 |
| California State University-Stanislaus | 82 | $6,067 | $63,188 |
| California State University-Bakersfield | 75 | $5,652 | $59,009 |
Head-to-Head ROI Comparisons
See California Polytechnic State University-San Luis Obispo side by side with similar schools on ROI, cost, earnings, and debt.
Who Thrives Here
Cal Poly SLO admits 31.3% of applicants - selective for a California public. Scorecard does not report SAT or ACT ranges. Enrollment of 21,996 is large. The Pell grant rate is 19.2%. Cal Poly draws students who want hands-on, technical, project-based education in engineering, architecture, agriculture, business, and computer science. The San Luis Obispo location is scenic and relatively isolated between Los Angeles and the Bay Area, creating a tight residential campus culture. Students who thrive on collaborative project work, real-world lab environments, and California's technical employment ecosystem are the natural fit.
The Verdict: The Investment Pays Off
If you're asking whether California Polytechnic State University-San Luis Obispo is worth it, the short answer is yes - it's one of the strongest money decisions in higher education. Four years here run about $66,660 after aid, and the typical graduate earns $90,768 ten years out. That earnings head start covers the cost in roughly 3.7 years, well ahead of most schools.
What it has going for it: a strong earnings premium over high school graduates, its 86.4% graduation rate, manageable debt relative to earnings, high loan repayment success.
Median debt of $18,500 among graduates who borrowed, against average earnings of $54,700 six years after entry, gives a debt-to-earnings ratio of 0.34, under the 1.0 point at which debt would equal a full year of those earnings. Your major matters a lot here: graduates in higher-earning fields will see the better end of this.
California Polytechnic State University-San Luis Obispo: Common Questions
Is California Polytechnic State University-San Luis Obispo worth it?
In our view, yes - for most students California Polytechnic State University-San Luis Obispo pays off. It scores 96/100 on our ROI scale. You'd pay about $16,665 a year after aid ($66,660 over four years), and the typical graduate earns $90,768 ten years after enrollment, so the cost takes roughly 3.7 years to earn back.
How much does California Polytechnic State University-San Luis Obispo cost after financial aid?
The average net price - the cost of attendance (tuition, fees, books, supplies and average living costs) minus grants and scholarships, for full-time, first-time students receiving federal aid - is about $16,665 a year, or roughly $66,660 over four years. Because it counts living costs, it can run above tuition alone. That is the number to plan around. Actual cost varies by family income, per the U.S. Department of Education's College Scorecard.
What do California Polytechnic State University-San Luis Obispo graduates earn?
The typical graduate earns about $90,768 ten years after enrolling, roughly $48,968 a year more than the median high-school graduate ($41,800, per NCES, 2022). That earnings gap is what has to cover the cost of the degree.
How long does it take to pay off California Polytechnic State University-San Luis Obispo?
We estimate the payback period - the time it takes for the earnings bump over a high-school graduate to cover what you spent - at about 3.7 years for California Polytechnic State University-San Luis Obispo. The median across the schools we track is about 12 years.
How much debt do California Polytechnic State University-San Luis Obispo graduates take on?
Among graduates who borrowed, median federal loan debt from this school is about $18,500, against average earnings of $54,700 six years after entry - a debt-to-earnings ratio of 0.34. In our view that is reasonable, though your major matters: higher-earning fields will see the better end of it.
What is the graduation rate at California Polytechnic State University-San Luis Obispo?
The six-year graduation rate is 86.4%, at or above the 64% national average for four-year schools (NCES, 2022). Completion is 15% of our ROI score, since a degree you don't finish rarely pays back.
NewsletterCollege decisions are better with data.
From CampusROI, when there is something worth acting on.
Rankings & Links
Guides & Tools
Data: College Scorecard API (U.S. Department of Education)
Vintage: 2024-2025 · Last updated: 2026-03-25
Earnings reflect median outcomes for all federal financial aid recipients. Individual results vary by major, effort, and career path.