Original Research by School Decision on Twin Oaks High
Twin Oaks High is an alternative public high school in San Marcos, a college-centered North County town anchored by California State University San Marcos and Palomar College. The school serves grades ten through twelve, with most students in grade twelve. It is a small school, with enrollment concentrated in the upper grades.
The student body is predominantly Hispanic, with a substantial majority qualifying for free or reduced-price lunch. The school serves a population with modest economic resources; more than half of students meet income thresholds for lunch assistance.
Twin Oaks reported proficiency on state assessments in the most recent year for which data are available. In English language arts, proficiency was in the single digits. In math and science, proficiency was markedly lower still, each at around one percent or less. These numbers reflect the enrollment pattern and mission of an alternative school. Alternative schools typically serve students who have struggled in traditional settings, experienced gaps in attendance or credit accumulation, or entered high school significantly behind in foundational skills. State testing proficiency at such schools often looks very different from traditional high school populations. A parent considering this pathway should ask the school directly about its graduation rate, credit-recovery model, support structures for students rebuilding transcripts or preparing for the GED, and how it serves students who may be working or managing other obligations alongside school.
The school did not report a graduation rate or data on attendance, chronic absenteeism, or discipline. These metrics would help a family understand the school's completion pathways and support for retention. No information on special education or English learner enrollment was available. A parent would benefit from contacting the school to learn more about these dimensions of the student experience.
San Marcos itself is a growing inland North County community with a mix of established residential neighborhoods, newer master-planned communities, and a developing downtown called North City next to the CSU campus. Housing values are above state averages, though rent remains the more accessible entry point for many families. The city has been adding housing rapidly to meet state goals, and residents have flagged concerns about traffic on State Route 78 as growth continues.
San Marcos Unified, the district that operates Twin Oaks, passed a substantial school facility bond in November 2024 with voter support. The bond will fund modernization of aging campuses, removal of portable classrooms and hazardous materials, and reconstruction of high-need school sites. This will raise property taxes for district homeowners for years to come. The district is also implementing ethnic studies as a graduation requirement beginning with the class of 2030, part of California's statewide mandate.
For a family weighing Twin Oaks, the relevant questions are whether the school's alternative model, small size, and focused student population align with a student's need to rebuild credits, complete a transcript in a different structure, or graduate on a modified timeline. Direct conversation with the school about its support services, completion rates, and post-secondary outcomes would ground that decision.
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