Summary:
High schools in ZIP code 94549 consist of one school, Acalanes High, serving grades 9–12 and enrolling 1,256 students. In 2025–26, its all-grade proficiency rates were 85% in English language arts (ELA), 70% in mathematics and 60% in science, compared with California rates of 49%, 38% and 36%. The most important finding is that Acalanes was well above state proficiency in all three subjects.
There is no local top-to-bottom school comparison: Acalanes is the only high school in the list, so it is both the highest and lowest by default. Against the state, its advantages were 36 percentage points in ELA, 32 in mathematics and 24 in science. Grade-level results show an important exception: grade 12 science was 17%, 16 points below the state’s 33%, while grade 11 science was 62%, 23 points above California’s 38%. That contrast means the strong all-grade science result does not describe performance at every grade.
Results improved most in mathematics: from 2024–25 to 2025–26, Acalanes rose 3 percentage points in ELA and 7 in mathematics, while science edged down by less than 1 point. Its advantage over the state widened by 2 points in ELA and 6 in mathematics, but narrowed by 3 points in science. SchoolDigger gave Acalanes five stars and ranked it 111th of 2,137 schools, in the 95th percentile; its rank was 50th in 2023–24 and 93rd in 2024–25. The 2025–26 graduation rate was 98%, compared with 88% statewide. Acalanes had a 19.5 student–teacher ratio in 2024–25, and 7% of students were reported as free/reduced lunch eligible that school year. Because this list contains only one school, it cannot show how Acalanes compares with other local high schools.
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