Mission Hills High
San Marcos, CA · High School · Grades 9-12
Mission Hills High is a high school in San Marcos, CA with 2,893 students enrolled and a 62% proficiency rate. Part of San Marcos Unified. NCES data from the U.S. Department of Education.
Get Mission Hills High's new scores when they post
We'll email you the moment Mission Hills High changes. No spam — only real updates.
About This School
Mission Hills High is a high school located in San Marcos, California. The school serves 2,893 students in grades 9-12. The student-to-teacher ratio is 27.0:1.
According to EDFacts assessment data, 62% of students meet grade-level proficiency standards in combined math and reading. The school reports a 86% graduation rate.
44% of students qualify for free or reduced-price lunch.
Mission Hills High is part of the San Marcos Unified in California. The school receives Title I federal funding.
How This School Compares
Mission Hills High has 2,893 students enrolled, making it larger than the average school in San Marcos Unified (1,027 students). Its 62% proficiency rate is 8 percentage points above the district average of 54%. Compared to the California state average of 45%, the school performs 17 points higher. The 27.0:1 student-teacher ratio is above the national average of 16:1.
Frequently Asked Questions
Mission Hills High has 2,893 students enrolled in grades 9-12. The student-to-teacher ratio is 27.0:1.
According to EDFacts data, 62% of students at Mission Hills High meet grade-level proficiency standards in combined math and reading assessments.
Mission Hills High has a 86% graduation rate, measuring the percentage of students who graduate within four years.
Mission Hills High is part of the San Marcos Unified in San Marcos, 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.
For this entity, the underlying data on this page comes from NCES Common Core of Data and EDFacts. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
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.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. public schools and districts with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: NCES Common Core of Data, 2026.