Mammoth High
365 Sierra Park Road, Mammoth Lakes, CA 93546
Summary
Mammoth High is underperforming.
Reading and math results average to the 58th percentile among comparable California schools.
58.9% of students met California's reading standard, and it is slowly trending up.
Math is weaker: 23.3% of students met California's math standard, but it is trending up slightly.
Proficiency stats
| Current Reading Proficiency | 58.9% |
| Current Math Proficiency | 23.3% |
| Reading State Rank | 600/1,596 (62nd percentile) |
| Math State Rank | 729/1,596 (54th percentile) |
School information
| Student / Teacher Ratio | 16:1 |
| Student enrollment (2024–25) | 330 |
| Low-Income Students | 136 (41.2%) |
| English Learners | 61 (18.5%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 8.3 points from last year and rose 4.4 points over the full period. Math fell 1.0 points from last year and rose 1.5 points over the full period.
•Math +1.5 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
White and Hispanic or Latino students have the strongest results.
Distribution of Scores by Grade
58.9% of tested students meet the reading standard in the grade shown. Overall, the school’s reading results rank in the top 38% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 19.9-point reading income gap is wider than the 14.7-point gap at a typical California 9–12 school. It narrowed over the period shown.
•
English Learners vs English Native
27.3% of English learners meet the reading standard, compared with 84.6% of English-only students. The gap narrowed as English-learner results rose and English-only results rose.
•Math Proficiency Scores
2026 state test results
Race and Ethnicity
White students have the strongest math results at about 48% proficiency. The other reported groups range from about 10% to 10%.
Distribution of Scores by Grade
23.3% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank in the top 46% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 33.8-point math income gap is wider than the 14.2-point gap at a typical California 9–12 school. It widened over the period shown.
•English Learners vs English Native
English-learner math proficiency held steady at 0.0%, while English-only results rose. The gap widened.
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 Mammoth High rank in California?
Mammoth High ranks No. 600 of 1,596 in reading and No. 729 of 1,596 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
