Enrollment
515
California · 2024-25 NCES data
Elementary school (grades K-5) · Castro Valley, CA
Federal NCES profile for Stanton Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 22/100.
The verdict
Stanton Elementary earns 22/100 on the Resource Investment Index, with class sizes larger than 76% of California schools. It is also more racially and ethnically mixed than most California schools.
Stanton Elementary has class sizes larger than 76% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Stanton Elementary ranks #8 of 9 elementary schools in Castro Valley, CA.
NCES ID 060780009525 Verify on NCES CCD record →
Enrollment
515
California · 2024-25 NCES data
Teachers (FTE)
21.0
Federal CCD staff survey
Students per teacher
24.5:1
vs 21.5:1 California avg
+14% vs state
Free-lunch eligible
38.2%
vs 55.5% California avg
-31% vs state
How Stanton Elementary compares with California and U.S. medians
Slightly above state median
24.5:1 - 3.0 above the California state median of 21.5:1, indicating larger average class loads than typical schools in the state.
Stanton Elementary is a mid-sized elementary school in Castro Valley, California, enrolling 515 students.
Class loads run somewhat heavier than typical: 24.5:1 puts it in the larger third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 38.2% of students eligible for free meals.
With 515 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Among 1,342 similarly sized, similarly resourced-need California schools statewide, it ranks #1,007, in the lower tier once campus size and economic need are matched.
Its student body is led by Asian (36%) and Hispanic or Latino (31%), more mixed than most schools in the state (diversity index 73/100).
Chronic absenteeism is elevated: 26.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Castro Valley Unified spends $13,179 per pupil, 20% below the California average, a leaner-resourced district than most.
Among Castro Valley's elementary schools, it stands alongside Independent Elementary (662 students): Stanton Elementary is smaller than that campus by headcount and runs leaner classes (24.5:1 vs 24.5:1).
Castro Valley Unified also operates Castro Valley High (2,874 students) and Canyon Middle (1,418 students) alongside Stanton Elementary.
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
Stanton Elementary on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 24.5:1 | ▲ 14% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 38.2% | ▼ 31% | 55.5% | 51.7% |
| Enrollment | 515 | top 43% | - | - |
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: Asian at 36.3% of enrollment.
Simpson diversity index - at 73.4, Stanton Elementary is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Castro Valley Unified, which includes Stanton Elementary.
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 |
|---|---|---|---|
| Castro Valley High | Larger | Lower economic need | Similar S:T ratio |
| Canyon Middle | Larger | Lower economic need | Similar S:T ratio |
| Creekside Middle | Larger | Lower economic need | Lower S:T ratio |
| Independent Elementary | Larger | Lower economic need | Similar S:T ratio |
| Proctor Elementary | Similar size | Lower economic need | Similar S:T ratio |
Comparisons are relative to Stanton Elementary'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 Stanton Elementary'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.
Stanton Elementary has 515 students enrolled. It is an elementary school in Castro Valley, CA.
The student-teacher ratio at Stanton Elementary is 24.5:1, which is 14% higher than the California average of 21.5:1 and 56% higher than the national average of 15.7:1.
38.2% of students at Stanton Elementary are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Stanton Elementary is Asian at 36.3% of enrollment, in Castro Valley, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 73.4/100.
Stanton Elementary has a Resource Investment Index of 22/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Stanton Elementary ranks #8 of 9 elementary schools in Castro 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 Castro Valley on the city page.
Stanton Elementary earns 22/100 on the Resource Investment Index, with class sizes larger than 76% of California schools. 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 Stanton Elementary, Castro Valley Unified also operates Castro Valley High (2,874 students), Canyon Middle (1,418 students), and Creekside Middle (754 students). See the Castro 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.
Published by
PlainSchools Editorial
Independent public-data reference that compiles, verifies, and contextualizes official datasets. We do not accept compensation from entities we cover, and every dataset cites its originating public source.
Last updated:
PlainSchools, “Stanton Elementary, Castro 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/stanton-elementary-ca
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.