Delta Charter Online
K-12 Schools (Public)Grades K–12Charter SchoolActive
31400 South Koster Road, Tracy, CA 95304-8824
(209) 830-6363
Overall Score (2024-25)
↑ 4.8 ptsvs 2023-2462
out of 100
AverageTop 33% statewideData completeness: 100%
Academic Achievement45
CA avg
Academic Growth91
CA avg
Equity50
CA avg
School Climate95
CA avg
College/Career Readiness42
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 Arts40.9%
CA avg 48.8%
Mathematics24.6%
CA avg 34.6%
Science / CAST (2024-25)20.0%
CA avg 32.7%
By Grade
| Grade | ELA % | Math % | Science % | Tested |
|---|---|---|---|---|
| 11 | 40.9% | 24.6% | 19.1% | 115 |
Enrollment & Demographics (2024-25)
282
Total Students
57.5%
Free/Reduced Lunch
10.6%
English Learners
Staff (2024-25)
21.0:1
Pupil-Teacher Ratio
Graduation Rates (2024-25)
↑ 2.3%98.3%
Graduation Rate
11.3%
Met UC/CSU Reqs
1.7%
Dropout Rate
Chronic Absenteeism (2024-25)
↓ 1.8%0.5%
Chronically Absent
394
Students Tracked
Historical Trends
Year-over-year performance data from official CDE records.
Composite Score
ELA Proficiency %
Math Proficiency %
Science / CAST %
Graduation Rate %
Chronic Absenteeism Rate %
Total Enrollment
Parent & Community Reviews
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Data sourced from the California Department of Education. CDS Code: 39686270136135. Academic Year: 2023-24 – 2024-25.