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Email BoardRiverside Preparatory
19121 Third Street, Oro Grande, CA 92368
Summary
Riverside Preparatory is badly underperforming.
Reading and math results average to the 26th percentile among comparable California schools.
Only 34.2% of students met California's reading standard, but it is slowly trending up.
Math is weaker: 15.8% of students met California's math standard, but it is slowly trending up.
Proficiency stats
| Current Reading Proficiency | 34.2% |
| Current Math Proficiency | 15.8% |
| Reading State Rank | 1,202/1,734 (31st percentile) |
| Math State Rank | 1,364/1,735 (21st percentile) |
School information
| Student / Teacher Ratio | 22:1 |
| Student enrollment (2024–25) | 2,453 |
| Low-Income Students | 1,908 (78.3%) |
| English Learners | 278 (11.4%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | Yes |
| Magnet school | No |
Test score trends
Reading rose 0.6 points from last year and rose 3.1 points over the full period. Math rose 0.2 points from last year and rose 3.3 points over the full period.
•Math +3.3 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Asian and White students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 20.1% to 59.3% across the grades shown. Overall, the school’s reading results rank No. 1,202 of 1,734 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 10.4-point reading income gap is narrower than the 11.6-point gap at a typical California K–12 school. It narrowed slightly over the period shown.
•English Learners vs English Native
9.5% of English learners meet the reading standard, compared with 33.5% 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
Asian students have the strongest math results at about 31% proficiency. The other reported groups range from about 13% to 25%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 10.4% to 30.8% across the grades shown. Overall, the school’s math results rank No. 1,364 of 1,735 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 6.8-point math income gap is narrower than the 10.8-point gap at a typical California K–12 school. It widened slightly over the period shown.
•English Learners vs English Native
7.5% of English learners meet the math standard, compared with 16.3% of English-only students. The gap narrowed as English-learner results rose and English-only results rose.
•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 Riverside Preparatory compare within the district?
Riverside Preparatory is No. 1 in both reading and math proficiency among the 8 K–12 schools in Oro Grande with 2026 results.
Explore the district’s schoolsHow does Riverside Preparatory rank in California?
Riverside Preparatory ranks No. 1,202 of 1,734 in reading and No. 1,364 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 Riverside Preparatory compare within the district?
Low-income students here rank No. 1 in both subjects among 8 K–12 district schools with reportable 2026 results for this group. 32.0% meet the reading standard and 14.3% meet the math standard.
See results by student groupHow does Riverside Preparatory compare with other schools in San Bernardino County?
Riverside Preparatory is No. 12 in reading and No. 13 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 |
|---|---|---|
| Riverside PreparatoryThis school | 15.8% | 34.2% |
| Mojave River Academy - Gold Canyon | 0.9% | 17.2% |
| Mojave River Academy - Marble City | 5.7% | 19.2% |
