Summary:
ZIP code 94519 has six schools in Mt. Diablo Unified, serving elementary through high-school grades, with grade spans from K–5 to 7–12 and enrollments from 12 to 562. Four schools have numeric 2025–2026 all-grades proficiency results; results for Sunrise (Special Education) and Crossroads High are not numerically reported. The most important takeaway is that achievement varies widely across the ZIP code, rather than describing one consistent school environment.
Monte Gardens Elementary stands out at the top: its all-grades results were 65% in ELA, 56% in math and 52% in science, respectively 15, 18 and 16 percentage points above state results. At the lower end, Olympic High had the lowest reported results overall—9% in ELA, 3% in math and 6% in science—about 40, 36 and 30 points below the state. Wren Avenue Elementary had the lowest reported elementary results, at 18% in ELA, 18% in math and 8% in science. Holbrook Language Academy offers a grade-specific bright spot: seventh-grade ELA was 67%, 17 points above the state result for that grade.
Recent results rose in all three subjects at Monte Gardens and Wren Avenue from 2024–2025 to 2025–2026; Olympic’s ELA fell 6 points and math fell 3, while science rose 5 points. SchoolDigger ranks Monte Gardens at the 80th percentile with four stars, compared with Holbrook at the 34th percentile and two stars, Wren at the 5th percentile and zero stars, and Olympic at the 8th percentile and zero stars. Context differs too: student-teacher ratios are 28.8 at Monte and 20.5 at Wren, while free/reduced lunch eligible figures for 2024–2025 were 44% at Monte and 76% at Wren. These measures are observations, not explanations for achievement differences.
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