Delta Charter
K-12 Schools (Public)Grades K–12Charter SchoolActive
31400 South Koster Road, Tracy, CA 95304-8824
(209) 830-6363
Overall Score (2024-25)
↓ 7.1 ptsvs 2023-2431
out of 100
Below AverageTop 76% statewideData completeness: 100%
Academic Achievement34
CA avg
Academic Growth15
CA avg
Equity27
CA avg
School Climate27
CA avg
College/Career Readiness53
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 Arts31.4%
CA avg 48.8%
Mathematics26.0%
CA avg 34.6%
Science / CAST (2024-25)17.1%
CA avg 32.7%
By Grade
| Grade | ELA % | Math % | Science % | Tested |
|---|---|---|---|---|
| 03 | 35.9% | 29.7% | — | 64 |
| 04 | 16.3% | 18.4% | — | 49 |
| 05 | 46.3% | 31.5% | 24.5% | 54 |
| 06 | 28.6% | 30.4% | — | 56 |
| 07 | 39.3% | 30.9% | — | 56 |
| 08 | 32.2% | 28.6% | 10.2% | 59 |
| 11 | 19.3% | 12.1% | 17.2% | 57 |
Enrollment & Demographics (2024-25)
772
Total Students
52.3%
Free/Reduced Lunch
10.2%
English Learners
Staff (2024-25)
14.8:1
Pupil-Teacher Ratio
Graduation Rates (2024-25)
↑ 2.8%95.7%
Graduation Rate
29.9%
Met UC/CSU Reqs
4.3%
Dropout Rate
Chronic Absenteeism (2024-25)
↑ 6.4%19.8%
Chronically Absent
835
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: 39686276119309. Academic Year: 2023-24 – 2024-25.