Walnut Valley Unified

Walnut, California · 13,494 students · 15 schools

Enrollment

13,494

Schools

Location

Walnut, California

COSMIQ projected accountability rating

Above 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	72.8%	76.2%

Where this district could improve

Math proficiency
Worth 50% of the formula; you're at 70% of max points.
ELA proficiency
Worth 50% of the formula; you're at 70% of max points.

Schools in this district

Diamond Bar HighDiamond Bar, CA 2,557 students Walnut HighWalnut, CA 2,158 students Chaparral MiddleDiamond Bar, CA 1,133 students Suzanne MiddleWalnut, CA 1,120 students South Pointe MiddleWalnut, CA 879 students Evergreen ElementaryDiamond Bar, CA 719 students Walnut ElementaryWalnut, CA 671 students Quail Summit ElementaryDiamond Bar, CA 665 students Castle Rock ElementaryDiamond Bar, CA 646 students Vejar ElementaryWalnut, CA 642 students Leonard G. Westhoff ElementaryWalnut, CA 627 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">Walnut Valley Unified</div><div style="font-size:13px;color:#64748b;margin-top:3px">Walnut, 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">13,494</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">Above 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/walnut-valley-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). Walnut Valley Unified — school district profile. Retrieved August 23, 2026, from https://getcosmiq.app/schools/CA/walnut-valley-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 Walnut Valley 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.