Summary:
Castaic has one listed middle school, Castaic Middle, serving grades seven and eight with 451 students, in the Castaic Union district. Its 2025–2026 results show a clear subject-by-subject split: English language arts and science are well above California results, while math is just below the state and notably below the district. Most important, the school’s strongest results are in ELA and science, not math.
There is no school-to-school top or bottom comparison because Castaic has only one listed middle school. Compared with California, Castaic Middle scored 63% in ELA versus 49% statewide, a 14-point advantage, and 46% in science versus 36%, a 10-point advantage. Math was 38%, just under the state’s 38%; compared with the district’s 45%, the school was 8 points lower. Results also differ by grade: seventh-grade ELA was 67%, 16 points above its state comparison, while eighth-grade ELA was 59%, 10 points higher. Both grades were narrowly above their grade-matched state math results.
Recent trends reinforce math as the area to watch: the school moved from 3 points above the state in 2024–2025 to just below it in 2025–2026, a 3-point decline in its margin. ELA’s state advantage grew by 2 points, while science’s advantage was essentially unchanged. SchoolDigger gave the school four stars in all three reported years; its statewide percentile rose from 71 in 2023–2024 to 77, then eased to 74. Other context: chronic absenteeism was 8%, compared with 12% in the district and 18% statewide; the student–teacher ratio was 22.7:1, and 51% of students were free/reduced lunch eligible in 2024–2025. Test results cover only two years, and the low-income measure is from 2024–2025.
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