Mammoth Unified
Mono County school performance
Mammoth Unified is underperforming.
Reading and math results average to the 55th percentile among California school districts.
Only 42.4% of students met California's reading standard, but it is trending up slightly.
Math is weaker: 39.8% of students met California's math standard, but it is slowly trending up.
| Current Reading Proficiency | 42.4% |
| Current Math Proficiency | 39.8% |
| District Reading Rank | 544 / 977 (44th percentile) |
| District Math Rank | 336 / 977 (66th percentile) |
| Student / Teacher Ratio | 16:1 |
| Spend per Student | $18,681 |
| Schools in District | 3 |
| Student Enrollment | 1,087 |
| Low-Income Students | 513 (47.3%) |
| English Learners | 281 (25.9%) |
District Website
Great Schools
Niche
Ed-Data
CAASPPTest score trends
Reading rose 0.9 points from last year and rose 0.8 points over the full period. Math rose 5.4 points from last year and rose 4.6 points over the full period.
•Math +4.6 percentage pointsBoard Members
| name | elected | up for re-election |
|---|---|---|
Chelsea Nash President | 2022 | 2026This year! |
Alonso Escobar Clerk | 2020 | 2028 |
Marcy Castro Member | 2024 | 2028 |
Marty Thompson Member | 2022 | 2026This year! |
Sarah Keith Member | 2025 | 2026This year! |
Expand for details on low-income and english learner performance
Reading Proficiency Scores
Comparison of low-income and English learner groups using district-level CAASPP proficiency data.
Low-Income vs Non-Low-Income
Low-income students trail other students by 37.7 points in reading. It widened slightly over the period shown.
•English Learners vs English Native
4.3% of English learners meet the reading standard, compared with 61.4% of English-only students. The gap narrowed as English-learner results rose and English-only results fell.
•
Math Proficiency Scores
Comparison of low-income and English learner groups using district-level CAASPP proficiency data.
Low-Income vs Non-Low-Income
Low-income students trail other students by 37.9 points in math. It widened over the period shown.
•English Learners vs English Native
7.1% of English learners meet the math standard, compared with 60.5% of English-only students. The gap narrowed as English-learner results rose and English-only results rose.
•District School Map
Schools in this district, color-coded by reading proficiency.
Loading district map...
Hover over a school marker to see details
Schools
Understanding this district
How does Mammoth Unified rank in California?
Mammoth Unified ranks No. 544 of 977 in reading and No. 336 of 977 in math for 2026. These proficiency rankings compare districts across all district types.
Are results improving across Mammoth Unified’s schools?
Over 2024–2026, reading proficiency rose at 2 of 3 schools with results covering that full period; math rose at 3 of 3.
Compare school trendsHow do low-income students in Mammoth Unified compare with other districts?
Low-income reading proficiency is 25.9%, compared with 35.1% at a typical California unified district. In math, it is 23.3%, compared with 23.6%.
See student-group resultsWhich districts should I compare with Mammoth Unified?
Unified districts in Mono County. Peers have the closest enrollment sizes.
| District | Math | Reading |
|---|---|---|
| Mammoth UnifiedThis district | 39.8% | 42.4% |
| Eastern Sierra Unified | 28.4% | 45.5% |
How we compare low-income results
“Typical” is the median across 339 California unified districts with 2026 results, a reported low-income population, and at least 20 low-income tested students in each subject. Each district counts once. This compares proficiency for low-income students, rather than the gap between income groups.
