Other / mixed grade configuration · Oro Grande, CA
Riverside Preparatory
Federal NCES profile for Riverside Preparatory, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 23/100.
The verdict
Riverside Preparatory earns 23/100 on the Resource Investment Index, with class sizes near the California median. It is also one of the largest schools in California.
- 23
- Resource Index · Lower
- 22.7:1
- students per teacher
- 67.8%
- free-lunch eligible
- 2,453
- students enrolled
Riverside Preparatory has class sizes near the California median. Computed live against every California school reporting to NCES.
School address
NCES ID 060256611863 Verify on NCES CCD record →
NCES CCD universe card
School universe 060256611863 · Oro Grande, CA Other · LARGE · CHARTER
2,453 enr · 22.7:1 · 67.8% lunch · RII 23
Nearest enrollment peer: Walnut Hills High School (2,453 students)
Riverside Preparatory CCD stamps from the federal school universe. NCES Common Core of Data stamps for this campus. Read with this school → · District book → · California schools → · Find another →
How Riverside Preparatory compares
Riverside Preparatory on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 22.7:1 | ▲ 6% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 67.8% | ▲ 22% | 55.5% | 51.7% |
| Enrollment | 2,453 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Equity indicators (what these measure)
Student demographics
Largest group: Hispanic or Latino at 63.3% of enrollment.
Simpson diversity index - at 55.2, Riverside Preparatory is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Riverside Preparatory District, which includes Riverside Preparatory.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2022-23 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
Nationwide other schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~2,453 students)
Similar student-teacher ratio (~22.7:1)
Frequently asked questions about Riverside Preparatory
How many students attend Riverside Preparatory?
Riverside Preparatory has 2,453 students enrolled. It is a public school in Oro Grande, CA.
What is the student-teacher ratio at Riverside Preparatory?
The student-teacher ratio at Riverside Preparatory is 22.7:1, which is 6% higher than the California average of 21.5:1 and 45% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Riverside Preparatory?
67.8% of students at Riverside Preparatory are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Riverside Preparatory?
The largest demographic group at Riverside Preparatory is Hispanic or Latino at 63.3% of enrollment, in Oro Grande, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 55.2/100.
What is the Resource Investment Index for Riverside Preparatory?
Riverside Preparatory has a Resource Investment Index of 23/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
What other schools are in Riverside Preparatory District?
None; Riverside Preparatory District is a single-school charter district, and Riverside Preparatory is its only campus.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error. Data current as of August 2026.