Mountain Oaks
150 Old Oak Road, San Andreas, CA 95249
Summary
Mountain Oaks is underperforming.
Reading and math results average to the 40th percentile among comparable California schools.
Only 41.3% of students met California's reading standard, but it is trending up.
Math is weaker: 21.9% of students met California's math standard, but it is trending up slightly.
Proficiency stats
| Current Reading Proficiency | 41.3% |
| Current Math Proficiency | 21.9% |
| Reading State Rank | 931/1,734 (46th percentile) |
| Math State Rank | 1,148/1,735 (34th percentile) |
School information
| Student / Teacher Ratio | 27:1 |
| Student enrollment (2024–25) | 425 |
| Low-Income Students | 223 (52.5%) |
| English Learners | 2 (0.5%) |
Quick links
School Website
Great Schools
Niche
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | Yes |
| Magnet school | No |
Test score trends
Reading rose 7.4 points from last year and rose 7.2 points over the full period. Math rose 0.3 points from last year and rose 3.0 points over the full period.
•Math +3.0 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Two or more races and White students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 30.3% to 60.9% across the grades shown. Overall, the school’s reading results rank No. 931 of 1,734 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 17.9-point reading income gap is wider than the 11.6-point gap at a typical California K–12 school. It widened 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
Hispanic or Latino students have the strongest math results at about 25% proficiency. The other reported groups range from about 19% to 23%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 9.4% to 41.7% across the grades shown. Overall, the school’s math results rank No. 1,148 of 1,735 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 13.3-point math income gap is slightly wider than the 10.8-point gap at a typical California K–12 school. It widened over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current math gap cannot be calculated.
Progress as students move up
2023–2026
How we compare income gaps
“Typical” means the median gap across 249 schools for reading and 251 for math. The comparison uses 2026 California K–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 Mountain Oaks rank in California?
Mountain Oaks ranks No. 931 of 1,734 in reading and No. 1,148 of 1,735 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How does Mountain Oaks compare with other schools in San Andreas?
Mountain Oaks is No. 1 in both reading and math proficiency among the 2 K–12 schools in San Andreas with 2026 results.
Explore schools in San AndreasWhich schools should I compare?
Schools serving K–12 in the same district or city.
| School | Math | Reading |
|---|---|---|
| Mountain OaksThis school | 21.9% | 41.3% |
| Calaveras Unified Alternative-Sierra Hills Educati | 7.0% | 22.2% |
