Summary:
Zip code 91978 has one listed school, Steele Canyon High, serving grades 9–12, with 2,198 students. In 2024–2025, its all-grades proficiency was 67% in English language arts (ELA), 53% in science and 39% in mathematics; statewide results were 49%, 33% and 37%, respectively. The school’s clearest advantages over the state are in science and ELA, while all-grades mathematics is only slightly higher.
Steele Canyon High is both the highest- and lowest-ranked school in this list by default, so that does not show how it compares with nearby schools. Within the school, ELA proficiency is 28 percentage points above mathematics, while science is 14 points above mathematics. The same relative pattern appears in 11th grade: compared with state results, Steele Canyon is ahead by 10 points in ELA, 8 in mathematics and 18 in science. One important data caveat is that the school’s all-grades scores exactly repeat its 11th-grade scores, and there is no second listed school for a school-to-school comparison.
SchoolDigger’s ranking history shows a recent decline in relative standing, not necessarily a decline in test scores: Steele Canyon High ranked 259th of 2,170 schools in 2022–2023, 243rd of 2,159 in 2023–2024 and 378th of 2,162 in 2024–2025. Its percentile fell from 89th to 83rd between the last two years, a drop of 6 points; SchoolDigger awarded four stars in all three years. The school’s 2024–2025 student–teacher ratio was 24.2:1, and 50% of students were reported as free/reduced lunch eligible that year. These are useful context for families, but the data do not establish a connection between these measures and results.
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