Summary
Capistrano Union High is a small high school in San Juan Capistrano, in south Orange County, serving 103 students in grades 9–12 as part of the Capistrano Unified district. Its small enrollment and low student-teacher ratio contrast with much weaker outcomes than those at nearby high schools. The most important concern is that proficiency is very low across all three tested subjects, while chronic absenteeism is exceptionally high.
Compared with the state, district and six nearby same-district high schools serving grades 9–12, test results are the school’s clearest weakness: 2025–2026 proficiency was 12% in English language arts, 0% in math and 3% in science, versus peer averages of 73%, 51% and 56%, respectively. The school was lowest among those peers in each subject; its results were also 38, 38 and 33 percentage points below state results, and 59, 62 and 56 points below district results. Chronic absenteeism was another major concern at 44%, compared with 18% statewide, 14% districtwide and a 20% peer average. A relative strength is graduation: the school’s 94% rate was about 7 points above the state and 2 points above the district.
Results have remained challenging over time: from 2022–2023 to 2025–2026, proficiency fell by 2 points in ELA, 1 point in math and 4 points in science, while the overall SchoolDigger percentile dropped from 19 to 3. For 2025–2026, SchoolDigger ranked the school 2,075th of 2,137 California schools, in the 3rd percentile with zero stars; the six nearby comparable high schools ranked in the 78th–93rd percentiles. Context includes a student-teacher ratio of 8.6 in 2024–2025, compared with 21.5–23.6 at those peers, and 85% of students were free/reduced lunch eligible in 2024–2025, versus 23%–42% among those peers. SchoolDigger’s English Language Learner Students ranking rose from the 30th percentile in 2022–2023 to the 64th in 2023–2024, when the school’s overall percentile was 13—a notably stronger relative standing in SchoolDigger’s measure for that group.
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