Enrollment
781
California · 2024-25 NCES data
Elementary school (grades K-5) · Apple Valley, CA
Federal NCES profile for Mariana Academy, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 18/100.
The verdict
Mariana Academy earns 18/100 on the Resource Investment Index, with class sizes larger than 85% of California schools.
Mariana Academy has class sizes larger than 85% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Mariana Academy ranks #5 of 11 elementary schools in Apple Valley, CA.
NCES ID 060001709100 Verify on NCES CCD record →
Enrollment
781
California · 2024-25 NCES data
Teachers (FTE)
30.0
Federal CCD staff survey
Students per teacher
26:1
vs 21.5:1 California avg
+21% vs state
Free-lunch eligible
75.8%
vs 55.5% California avg
+37% vs state
How Mariana Academy compares with California and U.S. medians
Larger classes than state median
26:1 - 4.5 above the California state median of 21.5:1, indicating larger average class loads than typical schools in the state.
Mariana Academy is a high-poverty, mid-sized elementary school in Apple Valley, California, enrolling 781 students.
Class loads run somewhat heavier than typical: 26:1 puts it in the larger third of California schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 75.8% of students eligible for free meals.
Enrollment of 781 puts it in the larger third of California schools by headcount.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Among 1,650 similarly sized, similarly resourced-need California schools statewide, it ranks #1,209, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (63%) and White (27%) (diversity index 53/100).
Counselor access is stretched at roughly 781 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 54.4% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Apple Valley Unified spends $11,440 per pupil, 31% below the California average, a leaner-resourced district than most.
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Among Apple Valley's elementary schools, it stands alongside Sitting Bull Academy (1,695 students): Mariana Academy is smaller than that campus by headcount and runs heavier classes (26:1 vs 25.3:1).
Apple Valley Unified also operates Apple Valley High (2,211 students) and Granite Hills High (1,791 students) alongside Mariana 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
Mariana 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 | 26:1 | ▲ 21% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 75.8% | ▲ 37% | 55.5% | 51.7% |
| Enrollment | 781 | top 18% | - | - |
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 62.6% of enrollment.
Simpson diversity index - at 52.9, Mariana Academy is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Apple Valley Unified, which includes Mariana 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 |
|---|---|---|---|
| Apple Valley High | Larger | Lower economic need | Lower S:T ratio |
| Granite Hills High | Larger | Lower economic need | Lower S:T ratio |
| Sitting Bull Academy | Larger | Lower economic need | Similar S:T ratio |
| Phoenix Academy | Larger | Similar economic need | Lower S:T ratio |
| Vanguard Preparatory | Larger | Lower economic need | Lower S:T ratio |
Comparisons are relative to Mariana Academy's own figures; each column derives from NCES Common Core of Data.
6 comparable elementary schools (grades K-5) 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 Mariana 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.
Mariana Academy has 781 students enrolled. It is an elementary school in Apple Valley, CA.
The student-teacher ratio at Mariana Academy is 26:1, which is 21% higher than the California average of 21.5:1 and 66% higher than the national average of 15.7:1.
75.8% of students at Mariana Academy are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Mariana Academy is Hispanic or Latino at 62.6% of enrollment, in Apple Valley, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 52.9/100.
Mariana Academy has a Resource Investment Index of 18/100 (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, Mariana Academy ranks #5 of 11 elementary schools in Apple Valley, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Apple Valley on the city page.
Mariana Academy earns 18/100 on the Resource Investment Index, with class sizes larger than 85% of 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 Mariana Academy, Apple Valley Unified also operates Apple Valley High (2,211 students), Granite Hills High (1,791 students), and Sitting Bull Academy (1,695 students). See the Apple Valley 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, “Mariana Academy, Apple Valley 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/mariana-academy-ca
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