Enrollment
331
California · 2024-25 NCES data
Middle school (grades 6-8) · Rio Linda, CA
Federal NCES profile for Rio Linda Preparatory Academy, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 31/100.
The verdict
Rio Linda Preparatory Academy earns 31/100 on the Resource Investment Index, with class sizes near the California median. It is also more racially and ethnically mixed than most California schools.
Rio Linda Preparatory Academy has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Rio Linda Preparatory Academy ranks #2 of 7 public schools in Rio Linda, CA.
NCES ID 060133201992 Verify on NCES CCD record →
Enrollment
331
California · 2024-25 NCES data
Teachers (FTE)
17.0
Federal CCD staff survey
Students per teacher
19.5:1
vs 21.5:1 California avg
-9% vs state
Free-lunch eligible
69.8%
vs 55.5% California avg
+26% vs state
How Rio Linda Preparatory Academy compares with California and U.S. medians
Smaller classes than state median
19.5:1 - 2.0 below the California state median of 21.5:1, indicating smaller average class loads than typical schools in the state.
Rio Linda Preparatory Academy is a higher-need, mid-sized middle school in Rio Linda, California, enrolling 331 students.
Class sizes run a bit leaner than typical: 19.5:1 puts it in the smaller third of California schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 69.8% of students eligible for free meals.
Enrollment of 331 puts it in the smaller third of California schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 1,422 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #501.
Its student body is led by Hispanic or Latino (46%) and White (25%), more mixed than most schools in the state (diversity index 70/100).
Counselor availability sits well past the ASCA benchmark, roughly 331 students sharing each counselor, though short of the most stretched campuses.
Chronic absenteeism is elevated: 43.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 21.0% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 90 in- and out-of-school suspensions were reported for 331 students in the 2021-22 Civil Rights Data Collection.
Among Rio Linda's middle schools, it stands alongside Westside Preparatory Charter (480 students): Rio Linda Preparatory Academy is smaller than that campus by headcount and runs leaner classes (19.5:1 vs 24:1).
Twin Rivers Unified also operates Grant Union High (1,987 students) and Rio Linda High (1,594 students) alongside Rio Linda Preparatory Academy.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Rio Linda Preparatory Academy on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 19.5:1 | ▼ 9% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 69.8% | ▲ 26% | 55.5% | 51.7% |
| Enrollment | 331 | top 70% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: Hispanic or Latino at 45.6% of enrollment.
Simpson diversity index - at 70.0, Rio Linda Preparatory Academy is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Twin Rivers Unified, which includes Rio Linda Preparatory Academy.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Grant Union High | Larger | Higher economic need | Similar S:T ratio |
| Rio Linda High | Larger | Similar economic need | Similar S:T ratio |
| Foothill High | Larger | Higher economic need | Higher S:T ratio |
| Smythe Academy of Arts and Sciences | Larger | Similar economic need | Higher S:T ratio |
| Las Palmas Elementary | Larger | Higher economic need | Higher S:T ratio |
Comparisons are relative to Rio Linda Preparatory Academy's own figures; each column derives from NCES Common Core of Data.
1 comparable middle schools (grades 6-8) serving the same city.
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Rio Linda Preparatory Academy's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Rio Linda Preparatory Academy has 331 students enrolled. It is a middle school in Rio Linda, CA.
The student-teacher ratio at Rio Linda Preparatory Academy is 19.5:1, which is 9% lower than the California average of 21.5:1 and 24% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
69.8% of students at Rio Linda Preparatory Academy are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Rio Linda Preparatory Academy is Hispanic or Latino at 45.6% of enrollment, in Rio Linda, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 70.0/100.
Rio Linda Preparatory Academy has a Resource Investment Index of 31/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Rio Linda Preparatory Academy ranks #2 of 7 public schools in Rio Linda, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Rio Linda on the city page.
Rio Linda Preparatory Academy earns 31/100 on the Resource Investment Index, with class sizes near the California median. It is also more racially and ethnically mixed than most California schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Rio Linda Preparatory Academy, Twin Rivers Unified also operates Grant Union High (1,987 students), Rio Linda High (1,594 students), and Foothill High (1,417 students). See the Twin Rivers Unified district page for the complete list.
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, or report a data error. Data current as of June 2026.
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PlainSchools, “Rio Linda Preparatory Academy, Rio Linda CA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/rio-linda-preparatory-academy-ca
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