Altus Schools Charter School of San Diego vs Challenger Middle
A head-to-head comparison of two schools in California, United States, 2.8 km apart, using official American 2025 data. The better value in each row is highlighted.
Altus Schools Charter School of San Diego
San Diego · Charter high · Grades 6–12
1,375 students
Challenger Middle
San Diego · Public middle · Grades 6–8
960 students
| Measure | Altus Schools Charter School of San Diego San Diego, California | Challenger Middle San Diego, California |
|---|---|---|
| Success Index (US) | 20 Lower 50% | 66 Top 50% |
| State rank | #1121 of 1,343 | #224 of 1,334 |
| National rank | #15298 of 16,910 | #4140 of 15,369 |
| Sector | Charter | Public |
| Type | High | Middle |
| Year range | Grades 6–12 | Grades 6–8 |
| Students | 1,375 | 960 |
| Enrollment | 1,375 | 960 |
| Free/reduced-price lunch | 72.9% | 48.8% |
| Students per teacher | 35.3 | 24.6 |
| Reading proficiency | 42% | 73% |
| Math proficiency | 15% | 64% |
| city | San Diego | San Diego |
| state | California | California |
| Website | – | – |
The verdict
- •Challenger Middle scores higher on the Success Index (US) (66.2 vs 19.7).
- •Challenger Middle does better on math proficiency (64% vs 15%).
- •Challenger Middle does better on reading proficiency (73% vs 42%).
- •Challenger Middle does better on community advantage (fewer free/reduced-price lunch) (48.8% vs 72.9%).
- •Challenger Middle does better on students per teacher (24.6 vs 35.3).
- •Altus Schools Charter School of San Diego is the larger school with 1,375 students compared with 960.
- •Altus Schools Charter School of San Diego is a charter school while Challenger Middle is a public school, so fees and admission rules differ.
The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is Altus Schools Charter School of San Diego better than Challenger Middle?
On the Success Index (US), Challenger Middle ranks higher (66.2 vs 19.7 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are Altus Schools Charter School of San Diego and Challenger Middle?
About 2.8 km in a straight line, between San Diego and San Diego in California.
Which has the better Enrollment?
Altus Schools Charter School of San Diego: 1,375. Challenger Middle: 960. Students enrolled in the latest NCES directory year.
How do Altus Schools Charter School of San Diego and Challenger Middle rank in California?
Altus Schools Charter School of San Diego is 1121st of 1,343 and Challenger Middle is 224th of 1,334 among high schools in California on the 2025 Success Index (US).