Enrollment
318
California · 2024-25 NCES data
Elementary school (grades K-5) · El Sobrante, CA
Federal NCES profile for Olinda Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 16/100.
The verdict
Olinda Elementary earns 16/100 on the Resource Investment Index, with class sizes near the California median. It is also more racially and ethnically mixed than most California schools.
Olinda Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Olinda Elementary ranks #2 of 3 public schools in El Sobrante, CA.
NCES ID 063255005049 Verify on NCES CCD record →
Enrollment
318
California · 2024-25 NCES data
Teachers (FTE)
14.0
Federal CCD staff survey
Students per teacher
22.7:1
vs 21.5:1 California avg
+6% vs state
Free-lunch eligible
25.2%
vs 55.5% California avg
-55% vs state
How Olinda Elementary compares with California and U.S. medians
Slightly above state median
22.7:1 - 1.2 above the California state median of 21.5:1, indicating larger average class loads than typical schools in the state.
Olinda Elementary is a mid-sized elementary school in El Sobrante, California, enrolling 318 students.
At 22.7:1, its student-teacher ratio sits close to the California median, within a few percentage points of the 21.5:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat below the state's typical profile, with 25.2% of students eligible for free meals.
Enrollment of 318 puts it in the smaller third of California schools by headcount.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Among 689 similarly sized, similarly resourced-need California schools statewide, it ranks #657, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (35%) and Asian (29%), more mixed than most schools in the state (diversity index 76/100).
Chronic absenteeism is elevated: 36.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among El Sobrante's elementary schools, it stands alongside Murphy Elementary (460 students): Olinda Elementary is smaller than that campus by headcount and runs leaner classes (22.7:1 vs 23:1).
West Contra Costa Unified also operates El Cerrito High (1,460 students) and Richmond High (1,280 students) alongside Olinda 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
Olinda 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 | 22.7:1 | ▲ 6% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 25.2% | ▼ 55% | 55.5% | 51.7% |
| Enrollment | 318 | top 72% | - | - |
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 34.6% of enrollment.
Simpson diversity index - at 75.5, Olinda Elementary is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for West Contra Costa Unified, which includes Olinda 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 |
|---|---|---|---|
| El Cerrito High | Larger | Higher economic need | Similar S:T ratio |
| Richmond High | Larger | Higher economic need | Lower S:T ratio |
| Pinole Valley High | Larger | Higher economic need | Lower S:T ratio |
| De Anza High | Larger | Higher economic need | Lower S:T ratio |
| Hercules High | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Olinda Elementary's own figures; each column derives from NCES Common Core of Data.
1 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 Olinda 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.
Olinda Elementary has 318 students enrolled. It is an elementary school in El Sobrante, CA.
The student-teacher ratio at Olinda Elementary 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.
25.2% of students at Olinda Elementary are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Olinda Elementary is Hispanic or Latino at 34.6% of enrollment, in El Sobrante, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 75.5/100.
Olinda Elementary has a Resource Investment Index of 16/100 (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, Olinda Elementary ranks #2 of 3 public schools in El Sobrante, 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 El Sobrante on the city page.
Olinda Elementary earns 16/100 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 Olinda Elementary, West Contra Costa Unified also operates El Cerrito High (1,460 students), Richmond High (1,280 students), and Pinole Valley High (1,245 students). See the West Contra Costa 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, “Olinda Elementary, El Sobrante 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/olinda-elementary-ca-2/
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