Hidden Valley Elementary
Martinez, CA · Elementary School
Hidden Valley Elementary is a elementary school in Martinez, CA with 809 students enrolled and a 68% proficiency rate. Part of Mt. Diablo Unified. NCES data from the U.S. Department of Education.
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About This School
Hidden Valley Elementary is a elementary school located in Martinez, California. The school serves 809 students. The student-to-teacher ratio is 27.0:1.
According to EDFacts assessment data, 68% of students meet grade-level proficiency standards in combined math and reading.
26% of students qualify for free or reduced-price lunch.
Hidden Valley Elementary is part of the Mt. Diablo Unified in California.
How This School Compares
Hidden Valley Elementary has 809 students enrolled, making it larger than the average school in Mt. Diablo Unified (567 students). Its 68% proficiency rate is 12 percentage points above the district average of 56%. Compared to the California state average of 45%, the school performs 23 points higher. The 27.0:1 student-teacher ratio is above the national average of 16:1.
Frequently Asked Questions
Hidden Valley Elementary has 809 students enrolled. The student-to-teacher ratio is 27.0:1.
According to EDFacts data, 68% of students at Hidden Valley Elementary meet grade-level proficiency standards in combined math and reading assessments.
Hidden Valley Elementary is part of the Mt. Diablo Unified in Martinez, California. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
The this entity record above pulls directly from NCES Common Core of Data and EDFacts. What follows is the per-entity context — how this entity sits in the broader U.S. K-12 school outcomes and enrollment distribution and which underlying factors drive the headline numbers.
The methodology behind every numeric value on this page is publicly documented on the NCES Common Core of Data and EDFacts portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. public schools and districts. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: NCES Common Core of Data, 2026.