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PublicElementaryGrades K–5
1 Cassou Rd., San Marcos, CA 92069 · (760) 290-2588 · Part of San Marcos Unified School District
San Marcos’ School Grade A− better than 84% of California school districts
Students
648
Students per teacher
21:1
Free or reduced lunch
48%
Setting
Suburb
Grades
K–5
What stands out about Twin Oaks Elementary
- Larger classes: 21 students per teacher
- No state test results published for this school
- Next stop for San Marcos kids: 5 middle schools
On the path
Where San Marcos kids come from and go next. The whole path →
K–5Twin Oaks ElementaryYou are here
6–85 middle schoolsDepends on your address
Location
Directions ↗














1 Cassou Rd., San Marcos
Students
Enrollment by grade
Kindergarten130
Grade 1101
Grade 2116
Grade 399
Grade 496
Grade 5106
Enrollment over time
627’20
669’21
675’22
706’23
648’24
Up 3.3% since 2020–21.
Who goes here
Hispanic 59%White 31%Two or more races 5%Asian 4%Black <1%Native Hawaiian/Pacific Islander <1%
As reported to NCES, share of students with a reported race or ethnicity.
Parents talk
Questions and answers about Twin Oaks Elementary from San Marcos families.
Other schools in San Marcos Unified School District
School facts: U.S. Department of Education (NCES), 2024–2025 school year. Map: © OpenStreetMap contributors.