Below Average
#8296 of 9,533 schools in CA
Riverside Preparatory
School · Riverside Preparatory District
PO Box 386, Oro Grande, CA 92368
Enrollment
2,401
Student-Teacher
21.2:1
Score
4.5
Grades
Kindergarten – 12th
Enrollment
2,401
Student-Teacher
21.2:1
Score
4.5
Grades
Kindergarten – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In Oro Grande
#8 of 8
public schools
California schools
#401 of 475
About Riverside Preparatory
Riverside Preparatory serves 2,401 students from kindergarten through 12th grade in Oro Grande, California. This charter school operates with 113 full-time equivalent teachers, maintaining a student-teacher ratio of 21.2:1 across its comprehensive K-12 program. Academically, Riverside Preparatory has significant room for growth, with 31% of students performing at proficient or above levels in English Language Arts and 13% meeting proficiency standards in mathematics.
The school currently ranks in the 23rd percentile among California schools, indicating opportunities for focused improvement in student achievement and instructional support. The school serves a diverse community where the median household income is $43,750 and approximately 20% of families face economic challenges. With only 16% of local residents holding bachelor's degrees or higher, Riverside Preparatory plays an important role in providing educational pathways for students in this working-class area.
As a charter school, Riverside Preparatory has the flexibility to implement innovative approaches to address the unique needs of its large student population. The school's comprehensive grade span allows students to remain in one educational community throughout their entire school career. Riverside Preparatory is situated in San Bernardino County's rural landscape, serving the small community of Oro Grande and surrounding areas.
What Parents Should Know
Riverside Preparatory is a large school with 2,401 students enrolled. Larger schools typically offer a wider range of academic programs, electives, and extracurricular activities. Parents may want to ask about how the school maintains a sense of community and ensures students don't get lost in the crowd.
While current test scores at Riverside Preparatory are below average, the school shows strong growth metrics — meaning students are making above-average progress year over year. This upward trajectory can be a positive indicator for families who value a school's ability to help students improve, even if absolute scores haven't caught up yet.
The student-teacher ratio at Riverside Preparatory is 21.2:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
View breakdown
View breakdown
View breakdown
Riverside Preparatory — Students at Riverside Preparatory score 22% proficient, which is below what's typical for similar communities (expected: 29%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
80.1%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 18 test records from CA state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 6.5/10.
How Riverside Preparatory Compares
See how Riverside Preparatory performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has remained stable from 12% (2021) to 12.55% (2024). Reading/ELA proficiency has declined from 37% (2021) to 31.07% (2024).
Location
PO Box 386, Oro Grande, CA 92368
Nearby Alternatives
Families considering Riverside Preparatory may also want to explore other schools in the area. Sixth Street Prep (rated 8.7/10, 4.9 miles away, in nearby Victorville), which scores notably higher. Another option is Gus Franklin Jr. (rated 7.8/10, 4.6 miles away, in nearby Victorville), which scores notably higher. Additionally, Melva Davis Academy of Excellence (rated 7.6/10, 4.9 miles away, in nearby Victorville), which scores notably higher. For more schools in Oro Grande, see our Oro Grande schools guide .
Nearby Schools
20 within 4.6 mi| School | Distance | Rating |
|---|---|---|
| Oro Grande Elementary Oro Grande | 0.0 mi | 5.3 |
| VERMONT CHRISTIAN SCHOOL Victorville | 2.2 mi | — |
| Puesta del Sol Elementary Victorville | 3.8 mi | 5.5 |
| Challenger School of Sports and Fitness Victorville | 3.9 mi | 7.3 |
| Dr. Ralph H. Baker 21st Century Learning Center Victorville | 4.7 mi | 3.9 |
| ZION LUTHERAN SCHOOL Victorville | 4.8 mi | — |
| Village Elementary Victorville | 4.9 mi | 4.8 |
| Goodwill High Victorville | 4.8 mi | 5.6 |
| Goodwill Independent Study Victorville | 4.8 mi | 5.2 |
| Gus Franklin Jr. Victorville | 4.6 mi | 7.8 |
| Del Rey Elementary Victorville | 4.9 mi | 4.6 |
| Dynamic Hope Schools - Adelanto Adelanto | 4.2 mi | — |
| BRIGHT FUTURES ACADEMY - ADELANTO Adelanto | 4.2 mi | 5.4 |
| West Creek Elementary Victorville | 4.8 mi | 6.0 |
| Victor Valley Virtual Academy Victorville | 5.0 mi | 6.4 |
| Sixth Street Prep Victorville | 4.9 mi | 8.7 |
| Victor Valley High Victorville | 5.0 mi | 5.2 |
| Melva Davis Academy of Excellence Victorville | 4.9 mi | 7.6 |
| Imogene Garner Hook Junior High Victorville | 5.3 mi | 6.8 |
| Adelanto Virtual Academy Victorville | 4.6 mi | 6.7 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 92368 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$75,000
Median Home Value
$313,700
Median Rent
$1,212/mo
Population
925
College Educated
13.3%
Homeownership
58.1%
Poverty Rate
17.1%
Median Age
40.6
Community Profile
The community surrounding Riverside Preparatory has a median household income of $75,000. It is a community where 13% of adults hold a bachelor's degree or higher. The median home value in the area is $313,700, with a median rent of $1,212/month. The area has a poverty rate of 17.1%. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| California Virtual Academy @ San Joaquin Simi Valley, CA | 4.5 |
| Palmdale Aerospace Academy Palmdale, CA | 4.5 |
| California Virtual Academy at Sutter Simi Valley, CA | 4.6 |
| Clarksville Charter Orangevile, CA | 4.4 |
| Literacy First Charter El Cajon, CA | 4.4 |
| Feather River Charter Sacramento, CA | 4.3 |
Frequently Asked Questions
Common questions about Riverside Preparatory
What grades does Riverside Preparatory serve?
Riverside Preparatory serves students in grades Kindergarten through 12th.
How many students attend Riverside Preparatory?
Riverside Preparatory has an enrollment of approximately 2,401 students.
What is the student-teacher ratio at Riverside Preparatory?
The student-teacher ratio at Riverside Preparatory is 21.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Riverside Preparatory rank in CA?
Riverside Preparatory is ranked #8296 out of 9,533 schools in CA.
What is Riverside Preparatory's MySchoolScout rating?
Riverside Preparatory has a composite rating of 4.5 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Riverside Preparatory?
Based on the most recent state assessment data, Riverside Preparatory has 13.2% math proficiency and 31.4% reading/ELA proficiency.
Is Riverside Preparatory a charter school?
Yes, Riverside Preparatory is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.
Is Riverside Preparatory a Title I school?
No, Riverside Preparatory is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Riverside Preparatory?
80.1% of students at Riverside Preparatory qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Powered by 
FBI UCR 2024. County-level only. Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Kindergarten – 12th
- Enrollment
- 2,401
- Student-Teacher Ratio
- 21.2:1
- Teachers (FTE)
- 113
- Free/Reduced Lunch
- 80.1%
- Type
- regular
- Setting
- Fringe Rural
- County
- San Bernardino County
- Phone
- (760) 243-5884
- Data Year
- 2023–2024
Resources & Links
District
Riverside Preparatory District- District Enrollment
- 2,401
- Schools in District
- 1
- Per-Pupil Spending
- $14,031
- District Rank
- #1 of 1
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
- Best Elementary Schools in America: 2026 Rankingsbest schools
- Best Public Schools in California 2026: Top-Ranked Elementary, Middle & High Schoolsbest schools
- Best School Districts to Move To in 2026: A Data-Driven Guidebest schools
- Best Schools in Los Angeles, CA — 2026 Rankingsbest schools
- Best Schools in San Diego, CA — 2026 Rankingsbest schools
Get school insights in your inbox
New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.
We respect your privacy. Unsubscribe at any time.