California State University-Northridge vs California Polytechnic State University-San Luis Obispo

Torn between these two? Here's how they stack up on what actually matters - what you'll pay, what graduates earn, and which one gives you the better return - all on U.S. Department of Education data.

California Polytechnic State University-San Luis Obispo leads by 16 points on ROI

Data: 2024-25 College Scorecard release

ROI Score Comparison

80
Strong Value
Earnings
97(0.86x)
Payback
83(7 yr)
Debt/Earn
90(0.37)
Completion
54(57%)
Repayment
42(71%)
96
Exceptional Value
Earnings
97(0.84x)
Payback
98(3.7 yr)
Debt/Earn
92(0.34)
Completion
94(86%)
Repayment
97(92%)

The Financial Comparison

On the numbers, California Polytechnic State University-San Luis Obispo comes out ahead: 96/100 to 80/100, a 16-point edge over California State University-Northridge. That gap comes from real differences in what each one costs, what its graduates earn, and the debt they leave with.

Start with what you'd actually pay. After aid, California State University-Northridge runs $7,021 a year against $16,665 at California Polytechnic State University-San Luis Obispo - $9,644 more a year, or about $38,576 across four years.

Then look at what that buys. Ten years after enrollment, California Polytechnic State University-San Luis Obispo graduates earn a median $90,768 against $59,115 at California State University-Northridge. The cost earns itself back in 7 years at California State University-Northridge and 3.7 years at California Polytechnic State University-San Luis Obispo.

Finally, the debt you'd carry out. Graduates leave California State University-Northridge owing a median $13,872 versus $18,500 at California Polytechnic State University-San Luis Obispo. Their debt-to-earnings ratios are 0.37 and 0.34 - and the rule of thumb is to keep that under 1.0, meaning debt no bigger than a first year's pay.

Head-to-Head Numbers

MetricCalifornia State Universi...California Polytechnic St...
Cost
In-State Tuition$7,458$13,596
Out-of-State Tuition$20,058$34,665
Net Price (avg)$7,021$16,665
Total 4-Year Cost$28,084$66,660
Outcomes
Median Earnings (6yr)$37,400$54,700
Median Earnings (10yr)$59,115$90,768
Graduation Rate57.0%86.4%
Payback Period7 yr3.7 yr
Debt
Median Debt$13,872$18,500
Monthly Payment$147$196
Debt-to-Earnings0.370.34
3yr Repayment Rate70.8%91.5%
5yr Repayment Rate65.5%88.5%
Admissions
Acceptance Rate93.5%31.3%
Enrollment32,69121,996

Net Price by Family Income

Average annual net price after grants and scholarships, by household income bracket.

Family IncomeCalifornia State Uni...California Polytechn...
$0-$30,000$4,905$7,529
$30,001-$48,000$5,450$7,253
$48,001-$75,000$7,744$9,896
$75,001-$110,000$11,262$15,786
$110,001+$18,040$27,772

Earnings by Major - Head to Head

Median earnings for majors offered at both schools. Green highlights the higher figure.

MajorCalifornia State Uni...California Polytechn...
Computer Science$101,348$154,784
Computer Engineering$101,021$148,950
Electrical Engineering$104,065$125,240
Business Administration, Management, and Operations$65,760$110,902
Mechanical Engineering$99,216$106,750
Civil Engineering$97,123$101,072
Economics$72,890$98,927
Philosophy$48,566$98,592
Mathematics$63,077$83,187
International Relations$57,527$81,843
Chemistry$79,878$63,882
Biochemistry and Molecular Biology$45,453$78,097
Communication and Media Studies$57,138$75,223
Journalism$53,351$70,829
Sociology$54,500$69,883

ROI Sub-Score Breakdown

ComponentCalifornia State Uni...California Polytechn...
Earnings Premium (30%)9797
Payback Period (25%)8398
Debt / Earnings (20%)9092
Completion Rate (15%)5494
Repayment Rate (10%)4297
Overall ROI Score8096
Exceptional Value

The Verdict

On the money, this one isn't close: California Polytechnic State University-San Luis Obispo clearly outperforms California State University-Northridge (96 vs 80), a 16-point gap driven by better earnings for what graduates paid. Unless California State University-Northridge brings something that matters to you specifically - a standout program in your major, a full scholarship, or reasons beyond the money - the data points to California Polytechnic State University-San Luis Obispo.

Want to personalize these numbers?

The ROI calculator lets you plug in your financial aid, intended major, and living situation for a tailored comparison.

80

California State University-Northridge

Strong Value - Full profile and breakdown

96

California Polytechnic State University-San Luis Obispo

Exceptional Value - Full profile and breakdown

Data from the U.S. Department of Education College Scorecard, as of 2024-2025. Earnings are measured 6 and 10 years after enrollment. Net prices reflect average aid for first-time, full-time students.See full methodology.