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Email BoardAltus Schools Charter School of San Diego
10170 Huennekens Street, San Diego, CA 92121-2964
Summary
Altus Schools Charter School of San Diego is badly underperforming.
Reading and math results average to the 29th percentile among comparable California schools.
Only 38.0% of students met California's reading standard, and it is slowly trending down.
Math is weaker: 13.7% of students met California's math standard, but it is trending up slightly.
Proficiency stats
| Current Reading Proficiency | 38.0% |
| Current Math Proficiency | 13.7% |
| Reading State Rank | 1,059/1,734 (39th percentile) |
| Math State Rank | 1,420/1,735 (18th percentile) |
School information
| Student / Teacher Ratio | 35:1 |
| Student enrollment (2024–25) | 1,375 |
| Low-Income Students | 1,002 (72.9%) |
| English Learners | 198 (14.4%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | Yes |
| Magnet school | No |
Test score trends
Reading fell 1.9 points from last year and fell 3.8 points over the full period. Math fell 1.5 points from last year and rose 0.9 points over the full period.
•Math +0.9 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Filipino and White students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 25.8% to 57.7% across the grades shown. Overall, the school’s reading results rank No. 1,059 of 1,734 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 18.6-point reading income gap is wider than the 10.8-point gap at a typical California 6–12 school. It narrowed over the period shown.
•English Learners vs English Native
3.6% of English learners meet the reading standard, compared with 42.0% of English-only students. The gap narrowed as English-learner results fell and English-only results fell.
•Math Proficiency Scores
2026 state test results
Race and Ethnicity
White students have the strongest math results at about 29% proficiency. The other reported groups range from about 8% to 23%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 9.7% to 16.9% across the grades shown. Overall, the school’s math results rank No. 1,420 of 1,735 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 18.0-point math income gap is nearly twice as wide as the 9.4-point gap at a typical California 6–12 school. It widened over the period shown.
•English Learners vs English Native
1.8% of English learners meet the math standard, compared with 17.3% of English-only students. The gap widened as English-learner results rose and English-only results rose.
•Progress as students move up
2023–2026
How we compare income gaps
“Typical” means the median gap across 67 schools for reading and 66 for math. The comparison uses 2026 California 6–12 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 Altus Schools Charter School of San Diego compare within the district?
Altus Schools Charter School of San Diego is No. 4 in both reading and math proficiency among the 6 6–12 schools in San Diego Unified with 2026 results.
Explore the district’s schoolsHow does Altus Schools Charter School of San Diego rank in California?
Altus Schools Charter School of San Diego ranks No. 1,059 of 1,734 in reading and No. 1,420 of 1,735 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Altus Schools Charter School of San Diego compare within the district?
Low-income students here rank No. 5 in both subjects among 6 6–12 district schools with reportable 2026 results for this group. 32.6% meet the reading standard and 8.5% meet the math standard.
See results by student groupHow does Altus Schools Charter School of San Diego compare with other schools in San Diego?
Altus Schools Charter School of San Diego is No. 3 in both reading and math proficiency among the 5 6–12 schools in San Diego with 2026 results.
Explore schools in San DiegoHow does Altus Schools Charter School of San Diego compare with other schools in San Diego County?
Altus Schools Charter School of San Diego is No. 6 in reading and No. 8 in math proficiency among the 12 6–12 schools in San Diego County with 2026 results.
Explore schools in San Diego CountyWhich schools should I compare?
Schools serving 6–12 in the same district.
| School | Math | Reading |
|---|---|---|
| Altus Schools Charter School of San DiegoThis school | 13.7% | 38.0% |
| City Heights Preparatory Charter | 8.8% | 34.6% |
| Gompers Preparatory Academy | 21.8% | 48.5% |
