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Email BoardDelta Charter
6500 Soquel Drive Bldg 500, Aptos, CA 95003-3119
Summary
Reading and math results average to the 47th percentile among comparable California schools.
62.1% of students met California's reading standard, and it is quickly trending up.
Math is weaker: 10.3% of students met California's math standard, but it is trending up slightly.
Proficiency stats
| Current Reading Proficiency | 62.1% |
| Current Math Proficiency | 10.3% |
| Reading State Rank | 517/1,596 (68th percentile) |
| Math State Rank | 1,165/1,596 (27th percentile) |
School information
| Student / Teacher Ratio | 13:1 |
| Student enrollment (2024–25) | 113 |
| Low-Income Students | 44 (38.9%) |
| English Learners | 0 (0.0%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | Yes |
| Magnet school | No |
Test score trends
Reading rose 37.7 points from last year and rose 35.0 points over the full period. Math rose 7.9 points from last year and rose 2.5 points over the full period.
•Math +2.5 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Only one group has a reportable reading result.
Distribution of Scores by Grade
62.1% of tested students meet the reading standard in the grade shown. Overall, the school’s reading results rank in the top 33% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 14.9-point reading income gap is about the same as the 14.7-point gap at a typical California 9–12 school. It narrowed slightly over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current reading gap cannot be calculated.
Math Proficiency Scores
2026 state test results
Race and Ethnicity
Only one group has a reportable math result.
Distribution of Scores by Grade
10.4% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank No. 1,165 of 1,596 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 4.8-point math income gap is narrower than the 14.2-point gap at a typical California 9–12 school. It narrowed over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current math gap cannot be calculated.
How we compare income gaps
“Typical” means the median gap across 876 schools for reading and 882 for math. The comparison uses 2026 California 9–12 schools with at least 20 tested students in each income group and a reported low-income student population. Each school counts once. Its gap is non-low-income proficiency minus low-income proficiency, including negative gaps. California state test data
Understanding this school
How does Delta Charter compare within the district?
Delta Charter is No. 3 in reading and No. 4 in math proficiency among the 5 9–12 schools in Santa Cruz City High with 2026 results.
Explore the district’s schoolsHow does Delta Charter rank in California?
Delta Charter ranks No. 517 of 1,596 in reading and No. 1,165 of 1,596 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How does Delta Charter compare with other schools in Aptos?
Delta Charter is No. 1 in reading and No. 2 in math proficiency among the 2 9–12 schools in Aptos with 2026 results.
Explore schools in AptosHow does Delta Charter compare with other schools in Santa Cruz County?
Delta Charter is No. 6 in reading and No. 10 in math proficiency among the 11 9–12 schools in Santa Cruz County with 2026 results.
Explore schools in Santa Cruz CountyWhich schools should I compare?
Schools serving 9–12 in the same district.
| School | Math | Reading |
|---|---|---|
| Delta CharterThis school | 10.3% | 62.1% |
| Ark Independent Studies | 5.9% | 21.2% |
| Harbor High | 29.2% | 55.3% |
