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Email BoardMira Costa High
1401 Artesia Boulevard, Manhattan Beach, CA 90266-6968
Summary
Mira Costa High is an excellent school.
Reading and math results average to the 95th percentile among comparable California schools.
84.3% of students met California's reading standard, and it is trending up.
63.4% of students met California's math standard, but it is trending up.
Proficiency stats
| Current Reading Proficiency | 84.3% |
| Current Math Proficiency | 63.4% |
| Reading State Rank | 75/1,596 (95th percentile) |
| Math State Rank | 83/1,596 (95th percentile) |
School information
| Student / Teacher Ratio | 25:1 |
| Student enrollment (2024–25) | 2,473 |
| Low-Income Students | 174 (7.0%) |
| English Learners | 26 (1.1%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading rose 3.1 points from last year and rose 8.1 points over the full period. Math rose 1.3 points from last year and rose 9.3 points over the full period.
•Math +9.3 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Most students in every reported group meet the reading standard. Filipino and Asian students have the strongest results.
Distribution of Scores by Grade
84.3% of tested students meet the reading standard in the grade shown. Overall, the school’s reading results rank in the top 5% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 11.6-point reading income gap is narrower than the 14.7-point gap at a typical California 9–12 school. It narrowed slightly over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current reading gap cannot be calculated.
Math Proficiency Scores
2026 state test results
Race and Ethnicity
Asian students have the strongest math results at about 88% proficiency. The other reported groups range from about 31% to 73%.
Distribution of Scores by Grade
63.3% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank in the top 6% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 9.7-point math income gap is narrower than the 14.2-point gap at a typical California 9–12 school. It held steady over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current math gap cannot be calculated.
How we compare income gaps
“Typical” means the median gap across 876 schools for reading and 882 for math. The comparison uses 2026 California 9–12 schools with at least 20 tested students in each income group and a reported low-income student population. Each school counts once. Its gap is non-low-income proficiency minus low-income proficiency, including negative gaps. California state test data
Understanding this school
How does Mira Costa High rank in California?
Mira Costa High ranks No. 75 of 1,596 in reading and No. 83 of 1,596 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How does Mira Costa High compare with other schools in Los Angeles County?
Mira Costa High is No. 21 in reading and No. 19 in math proficiency among the 334 9–12 schools in Los Angeles County with 2026 results.
Explore schools in Los Angeles County