Twin Oaks High
Public
High Grades 9–12
Part of San Marcos Unified
158 Cassou Rd., San Marcos, CA 92069 · (760) 290-2555
Community ratings
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Academic performanceComing soon
State test scores coming soon
Proficiency and other measures from the CA Department of Education report card, shown against the state average.
At a glance
192Students enrolled
10:1Student–teacher ratio
56%Free / reduced lunch
SuburbSetting
Alternative Education SchoolSchool type
Enrollment by grade
Grade 104
Grade 1149
Grade 12139
Students
Hispanic · 63%120
White · 23%45
Asian · 6%11
Two or more races · 5%9
Black · 3%6
Native Hawaiian/Pacific Islander · 1%1
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
133’20
191’21
235’22
213’23
192’24
Location
158 Cassou Rd. San Marcos
Neighbor reviews
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School facts from the U.S. Department of Education (NCES), 2024-2025 school year. Community ratings and reviews reflect neighbor opinions, not an official measure of school quality.