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AdmissionsOS

California Polytechnic State University-San Luis Obispo vs University of California-Irvine

Side by side on admissions, cost, and fit, from the same verified school records.

California Polytechnic State University-San Luis Obispo University of California-Irvine
Acceptance rate lower = more selective 31% 29%
Average net price what students actually pay after aid $16,665 $14,251
Sticker cost of attendance $32,265 $38,632
Graduation rate 86% 87%
Retention rate 96% 94%
Undergraduates 21,996 30,197
Student-faculty ratio 19:1 19:1
Setting San Luis Obispo, CA Irvine, CA
Type Public Public
Application fee $70 $80
Test policy Test-blind Test-blind

Highlighted values mark the stronger figure on cost and outcomes. Verified for the 2025-2026 cycle.

Common questions

Is California Polytechnic State University-San Luis Obispo or University of California-Irvine harder to get into?

University of California-Irvine is more selective, with a 29% acceptance rate versus 31% at California Polytechnic State University-San Luis Obispo. Both should be treated as reaches unless your stats sit at or above the mid-50% range shown above.

Which is cheaper, California Polytechnic State University-San Luis Obispo or University of California-Irvine?

University of California-Irvine has the lower average net price ($14,251 versus $16,665). Net price is what families actually pay after grants and scholarships, so it is a truer comparison than sticker price. Run each school's net price calculator for your own income.