Summary:
ZIP code 94506 has one middle school, Diablo Vista Middle, serving grades 6–8 with 835 students in San Ramon Valley Unified. Its 2025–2026 all-grades proficiency rates were 84% in English language arts (ELA), 80% in math, and 67% in science. The most important finding is that the school exceeded state results in every subject, by 34 percentage points in ELA, 41 in math, and 31 in science.
Because it is the only school in the list, Diablo Vista is both the local top and bottom by default; the more useful comparisons are with district and state results. It was above the district in all three subjects: by 3 points in ELA, 5 in math, and 1 in science. Math showed the largest advantage over the state, while science showed the smallest, though all three state gaps were substantial. Grade-level results offer a useful qualification: in grade 8, ELA was 79% at Diablo Vista versus 84% districtwide, and science was 67% versus 71%. Grade 8 math was just under 1 point above the district.
Results improved most in science: proficiency rose 7 percentage points from 2024–2025 to 2025–2026, and the school’s advantage over the state widened by 4 points. ELA rose 2 points, while math was essentially unchanged and its state advantage narrowed by 1 point. SchoolDigger’s rank improved from 115 of 2,783 schools (96th percentile) in 2023–2024 to 56 of 2,703 (98th percentile) in 2025–2026; these are rankings, not test-score changes. As additional context, chronic absenteeism was 6% in 2025–2026, compared with 8% districtwide and 18% statewide. In 2024–2025, 8% of students were reported as free/reduced lunch eligible; the state’s policy of providing free meals to all students is a separate measure.
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