Mt. Diablo Unified

Concord, California · 29,201 students · 53 schools

Enrollment

29,201

Schools

Location

Concord, California

COSMIQ projected accountability rating

Below average

on California's per-indicator accountability scale

Confidence 94% Data completeness 100% Based on 2023–24 data

This is an independent estimate generated by COSMIQ's open Rating Predictor from public math & reading proficiency — it is not an official California rating, and states weight many additional factors.

How this is calculated →Run the live predictor →

Proficiency trend

Percent of students proficient on the state assessment.

School year	Math	Reading / ELA
2024–25	38.7%	48.1%

Where this district could improve

Math proficiency
Worth 50% of the formula; you're at 30% of max points.
ELA proficiency
Worth 50% of the formula; you're at 40% of max points.

Schools in this district

College Park HighPleasant Hill, CA 1,956 students Northgate HighWalnut Creek, CA 1,507 students Mt. Diablo HighConcord, CA 1,498 students Ygnacio Valley HighConcord, CA 1,172 students Concord HighConcord, CA 1,167 students Foothill MiddleWalnut Creek, CA 876 students Sequoia MiddlePleasant Hill, CA 856 students El Dorado MiddleConcord, CA 832 students Hidden Valley ElementaryMartinez, CA 809 students Valley View MiddlePleasant Hill, CA 777 students Riverview MiddleBay Point, CA 766 students Meadow Homes ElementaryConcord, CA 748 students Oak Grove MiddleConcord, CA 720 students Pleasant Hill MiddlePleasant Hill, CA 700 students Mt. Diablo ElementaryClayton, CA 693 students Bancroft ElementaryWalnut Creek, CA 675 students Walnut Acres ElementaryWalnut Creek, CA 638 students Valhalla ElementaryPleasant Hill, CA 631 students

Methodology & sources

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<figure style="font-family:system-ui,-apple-system,sans-serif;border:1px solid #e2e8f0;border-radius:12px;padding:20px 22px;max-width:480px;background:#ffffff;color:#0f172a;margin:0;line-height:1.4"><div style="font-size:15px;font-weight:700">Mt. Diablo Unified</div><div style="font-size:13px;color:#64748b;margin-top:3px">Concord, California &middot; Public school district</div><div style="display:flex;flex-wrap:wrap;margin-top:14px"><div style="margin-right:20px"><div style="font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:#94a3b8;margin-bottom:2px">Enrollment</div><div style="font-size:22px;font-weight:700;color:#0f172a">29,201</div></div><div><div style="font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:#94a3b8;margin-bottom:2px">Projected Rating (per-indicator)</div><div style="font-size:22px;font-weight:700;color:#16a34a">Below average</div></div></div><figcaption style="font-size:11px;color:#94a3b8;margin-top:14px;padding-top:12px;border-top:1px solid #f1f5f9">Data: NCES / EDFacts (2024 data) &middot; <a href="https://getcosmiq.app/schools/CA/mt-diablo-unified" style="color:#0891b2;text-decoration:none" target="_blank" rel="noopener">View full profile on COSMIQ &#8594;</a></figcaption></figure>

Cite this page

COSMIQ. (2026). Mt. Diablo Unified — school district profile. Retrieved August 23, 2026, from https://getcosmiq.app/schools/CA/mt-diablo-unified

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About this profile. COSMIQ is an independent, free AI tutoring service and is not affiliated with, endorsed by, or sponsored by Mt. Diablo Unified, California, or any government education agency. All figures are drawn from public U.S. Department of Education data (NCES Common Core of Data and EDFacts). Any projected rating is an independent estimate, not an official score. COSMIQ does not collect or publish user reviews or ratings of schools.

Data last refreshed August 7, 2026.