Elementary school (grades K-5) · Altadena, CA
Ocs - South
Federal NCES profile for Ocs - South, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 28/100.
The verdict
Ocs - South earns 28/100 on the Resource Investment Index, with class sizes near the California median. It is also more racially and ethnically mixed than most California schools.
- #5 of 7
- elementary schools in Altadena · Resource Index
- 28
- Resource Index · Lower
- 23.1:1
- students per teacher
- 27.8%
- free-lunch eligible
Ocs - South has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Ocs - South ranks #5 of 7 elementary schools in Altadena, CA.
School address
NCES ID 060239914352 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+28 students YoY
Ocs - South grew from 342 students in 2022-23 to 370 in 2023-24 (+8.2%).
Teacher FTE added 17.0 → 18.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+28 students YoY 060239914352 · Altadena, CA Elementary · SMALL · CHARTER
392 enr · 23.1:1 · 27.8% lunch · RII 28
Nearest enrollment peer: Cougar Run Elementary School (392 students)
Ocs - South grew from 342 students in 2022-23 to 370 in 2023-24 (+8.2%). Teacher FTE added 17.0 → 18.0 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
How Ocs - South compares
Ocs - South is a growing campus on CCD: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 23.1:1 | ▲ 7% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 27.8% | ▼ 50% | 55.5% | 51.7% |
| Enrollment | 392 | top 62% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Equity indicators methodology
Student demographics
Largest group: Hispanic or Latino at 35.2% of enrollment.
Simpson diversity index - at 72.9, Ocs - South is more mixed than the California school average of 46.0.
Programs
District finance for Ocs - South District reports $14,374 per pupil (NCES F-33) - open the district page for the full revenue mix.
Similar elementary schools in Altadena
6 comparable elementary schools (grades K-5) serving the same city.
Nationwide elementary 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 (~392 students)
Frequently asked questions about Ocs - South
How many students attend Ocs - South?
Ocs - South has 392 students enrolled. It is an elementary school in Altadena, CA. CCD year-over-year: 342 (2022-23) → 370 (2023-24), up 28.
What is the student-teacher ratio at Ocs - South?
The student-teacher ratio at Ocs - South is 23.1:1, which is 7% higher than the California average of 21.5:1 and 47% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Ocs - South?
27.8% of students at Ocs - South are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Ocs - South?
The largest demographic group at Ocs - South is Hispanic or Latino at 35.2% of enrollment, in Altadena, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 72.9/100.
What is the Resource Investment Index for Ocs - South?
Ocs - South has a Resource Investment Index of 28/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Ocs - South rank among elementary schools in Altadena?
By Resource Investment Index, Ocs - South ranks #5 of 7 elementary schools in Altadena, 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 Altadena on the city page.
What other schools are in Ocs - South District?
None; Ocs - South District is a single-school charter district, and Ocs - South is its only campus.