OCS - South
Elementary Schools (Public)Grades K–8Charter SchoolActive
575 West Altadena Drive, Altadena, CA 91001-4203
(626) 209-5635
Overall Score (2024-25)
↓ 0.3 ptsvs 2023-2454
out of 100
AverageTop 45% statewideData completeness: 100%
Academic Achievement78
CA avg
Academic Growth36
CA avg
Equity61
CA avg
School Climate12
CA avg
Score reflects percentile ranking among same-type schools. How is this calculated?
Test Scores (2024-25)
Percentage of students meeting or exceeding standards on CAASPP/CAST.
English Language Arts67.3%
CA avg 48.8%
Mathematics53.0%
CA avg 34.6%
Science / CAST (2024-25)56.1%
CA avg 32.7%
By Grade
| Grade | ELA % | Math % | Science % | Tested |
|---|---|---|---|---|
| 03 | 66.7% | 61.9% | — | 21 |
| 04 | 56.3% | 46.7% | — | 16 |
| 05 | 82.1% | 59.3% | 60.7% | 28 |
| 06 | 41.2% | 22.2% | — | 17 |
| 07 | — | — | — | 6 |
| 08 | 84.6% | 69.2% | 46.1% | 13 |
Enrollment & Demographics (2024-25)
392
Total Students
28.6%
Free/Reduced Lunch
4.8%
English Learners
Staff (2024-25)
19.6:1
Pupil-Teacher Ratio
Chronic Absenteeism (2024-25)
↑ 11.3%31.5%
Chronically Absent
384
Students Tracked
Historical Trends
Year-over-year performance data from official CDE records.
Composite Score
ELA Proficiency %
Math Proficiency %
Science / CAST %
Chronic Absenteeism Rate %
Total Enrollment
Parent & Community Reviews
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Data sourced from the California Department of Education. CDS Code: 19648810136945. Academic Year: 2023-24 – 2024-25.