Summary
Sylmar Charter High is a grades 9–12 school in Sylmar, in the Los Angeles Unified School District, serving 1,463 students. Its clearest academic strength is English, where results are close to district and state levels; math and science proficiency are substantially lower, making those subjects the most important academic concern for families to weigh.
In 2025–2026, 48% of students were proficient in English Language Arts, close to the district’s 48% and the state’s 49%. Math proficiency was 22%, below the district’s 40% and the state’s 38%; science was 24%, compared with 32% in the district and 36% statewide. Still, Sylmar scored above the average of seven nearby Los Angeles Unified high schools in all three subjects: those averages were 44% in English, 18% in math and 20% in science. Its 12th-grade science result is a particular concern: 8% were proficient, versus 12% in the district and 33% statewide. Graduation is a positive counterpoint: Sylmar’s 96% rate was higher than the district’s 90% and the state’s 88%, though chronic absenteeism was also higher—27%, versus 23% and 18%.
Math and science have improved since 2022–2023: math rose 9 points and science 11, while their gaps with the state narrowed; English was nearly unchanged, dipping 1 point. SchoolDigger gives Sylmar 2 stars and a 45th-percentile statewide ranking for 2025–2026, around the middle of nearby schools, whose percentiles range from 11 to 73. The 2024–2025 student–teacher ratio was 19.0, close to the nearby-school average of 18.3. In 2024–2025, 87% of students were free/reduced lunch eligible. SchoolDigger’s statewide measure of how well it serves Special Education Students fell sharply to the 7th percentile in 2025–2026, from the 48th percentile the year before, compared with 45th for the school overall. Its latest supplied English Language Learner Students result was also low: the 6th percentile in 2023–2024, versus the school’s overall 40th percentile that year.
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