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Email BoardMojave River Academy - Marble City
9723 Sierra Vista Road, Phelan, CA 92371-8271
Summary
Mojave River Academy - Marble City is badly underperforming.
Reading and math results average to the 8th percentile among comparable California schools.
Only 19.2% of students met California's reading standard, but it is slowly trending up.
Math is weaker: 5.7% of students met California's math standard, but it is slowly trending up.
Proficiency stats
| Current Reading Proficiency | 19.2% |
| Current Math Proficiency | 5.7% |
| Reading State Rank | 1,579/1,734 (9th percentile) |
| Math State Rank | 1,608/1,735 (7th percentile) |
School information
| Student / Teacher Ratio | 22:1 |
| Student enrollment (2024–25) | 259 |
| Low-Income Students | 209 (80.7%) |
| English Learners | 36 (13.9%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | Yes |
| Magnet school | No |
Test score trends
Reading fell 1.8 points from last year and rose 4.1 points over the full period. Math rose 2.6 points from last year and rose 4.2 points over the full period.
•Math +4.2 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
The share meeting the reading standard ranges from 4.2% to 27.5% across the grades shown. Overall, the school’s reading results rank No. 1,579 of 1,734 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 8.9-point reading income gap is narrower than the 11.6-point gap at a typical California K–12 school. It widened slightly over the period shown.
•English Learners vs English Native
0.0% of English learners meet the reading standard, compared with 18.8% of English-only students. The gap widened as English-learner results held steady and English-only results rose.
Math Proficiency Scores
2026 state test results
Race and Ethnicity
White students have the strongest math results at about 6% proficiency. The other reported groups range from about 5% to 5%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 4.3% to 10.7% across the grades shown. Overall, the school’s math results rank No. 1,608 of 1,735 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
Low-income students are 0.8 points ahead in math. It narrowed slightly 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.
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 Mojave River Academy - Marble City compare within the district?
Mojave River Academy - Marble City is No. 3 in reading and No. 2 in math proficiency among the 8 K–12 schools in Oro Grande with 2026 results.
Explore the district’s schoolsHow does Mojave River Academy - Marble City rank in California?
Mojave River Academy - Marble City ranks No. 1,579 of 1,734 in reading and No. 1,608 of 1,735 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Mojave River Academy - Marble City compare within the district?
Low-income students here rank No. 3 in reading and No. 2 in math among 8 K–12 district schools with reportable 2026 results for this group. 17.4% meet the reading standard and 5.8% meet the math standard.
See results by student groupHow does Mojave River Academy - Marble City compare with other schools in Phelan?
Mojave River Academy - Marble City is No. 2 in both reading and math proficiency among the 2 K–12 schools in Phelan with 2026 results.
Explore schools in PhelanHow does Mojave River Academy - Marble City compare with other schools in San Bernardino County?
Mojave River Academy - Marble City is No. 19 in reading and No. 18 in math proficiency among the 24 K–12 schools in San Bernardino County with 2026 results.
Explore schools in San Bernardino CountyWhich schools should I compare?
Schools serving K–12 in the same district.
| School | Math | Reading |
|---|---|---|
| Mojave River Academy - Marble CityThis school | 5.7% | 19.2% |
| Mojave River Academy - Gold Canyon | 0.9% | 17.2% |
| Mojave River Academy - National Trails | 2.0% | 18.4% |
