Mira Costa High
Manhattan Beach, CA · High School · Grades 9-12
Mira Costa High is a high school in Manhattan Beach, CA with 2,497 students enrolled and a 69% proficiency rate. Part of Manhattan Beach Unified. NCES data from the U.S. Department of Education.
Mira Costa High is a high school in Manhattan Beach, CA that enrolls 2,497 students in grades 9-12, putting it among the larger public campuses in the Manhattan Beach Unified. That headcount is above the 839-student average for schools in the district.
EDFacts assessment data puts 69% of students at or above grade level in combined math and reading, a little above the national midpoint where roughly half of tested students clear the bar. That is 3 points below the 72% average for the Manhattan Beach Unified. Against the 45% California statewide average, the school sits 24 points higher.
Over the last three reported years the district proficiency rate this school inherits has fallen by about 10 points. As a high school, it reports a 80% adjusted-cohort graduation rate, the share of first-time ninth-graders who earn a regular diploma within four years.
The student-teacher ratio is 23.3 to 1, above the U.S. average of roughly 16 to 1. A relatively low 6% of students qualify for free or reduced-price lunch.
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About This School
Mira Costa High is a high school located in Manhattan Beach, California. The school serves 2,497 students in grades 9-12. The student-to-teacher ratio is 23.3:1.
According to EDFacts assessment data, 69% of students meet grade-level proficiency standards in combined math and reading. The school reports a 80% graduation rate.
6% of students qualify for free or reduced-price lunch.
Mira Costa High is part of the Manhattan Beach Unified in California.
How This School Compares
Mira Costa High has 2,497 students enrolled, making it larger than the average school in Manhattan Beach Unified (839 students). Its 69% proficiency rate is 3 percentage points below the district average of 72%. Compared to the California state average of 45%, the school performs 24 points higher. The 23.3:1 student-teacher ratio is above the national average of 16:1.
Frequently Asked Questions
Mira Costa High has 2,497 students enrolled in grades 9-12. The student-to-teacher ratio is 23.3:1.
According to EDFacts data, 69% of students at Mira Costa High meet grade-level proficiency standards in combined math and reading assessments.
Mira Costa High has a 80% graduation rate, measuring the percentage of students who graduate within four years.
Mira Costa High is part of the Manhattan Beach Unified in Manhattan Beach, 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.
Source: NCES Common Core of Data, 2026.