Hearn Academy The - A Ball Charter School vs Mountain Sky Middle School
A head-to-head comparison of two schools in Arizona, United States, 1.4 km apart, using official American 2025 data. The better value in each row is highlighted.
Hearn Academy The - A Ball Charter School
Phoenix · Charter elementary · Grades K–8
678 students
Mountain Sky Middle School
Phoenix · Public middle · Grades 7–8
672 students
| Measure | Hearn Academy The - A Ball Charter School Phoenix, Arizona | Mountain Sky Middle School Phoenix, Arizona |
|---|---|---|
| Success Index (US) | 74 Top 25% | 32 Lower 50% |
| State rank | #126 of 1,136 | #91 of 203 |
| National rank | #8389 of 50,301 | #11595 of 15,369 |
| Sector | Charter | Public |
| Type | Elementary | Middle |
| Year range | Grades K–8 | Grades 7–8 |
| Students | 678 | 672 |
| Enrollment | 678 | 672 |
| Free/reduced-price lunch | – | – |
| Students per teacher | 17.0 | 21.7 |
| Reading proficiency | 69% | 38% |
| Math proficiency | 76% | 40% |
| city | Phoenix | Phoenix |
| state | Arizona | Arizona |
| Website | – | – |
The verdict
- •Hearn Academy The - A Ball Charter School scores higher on the Success Index (US) (74.3 vs 31.6).
- •Hearn Academy The - A Ball Charter School does better on math proficiency (76% vs 40%).
- •Hearn Academy The - A Ball Charter School does better on reading proficiency (69% vs 38%).
- •Hearn Academy The - A Ball Charter School does better on students per teacher (17.0 vs 21.7).
- •Hearn Academy The - A Ball Charter School is the larger school with 678 students compared with 672.
- •Hearn Academy The - A Ball Charter School is a charter school while Mountain Sky Middle School 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 Hearn Academy The - A Ball Charter School better than Mountain Sky Middle School?
On the Success Index (US), Hearn Academy The - A Ball Charter School ranks higher (74.3 vs 31.6 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 Hearn Academy The - A Ball Charter School and Mountain Sky Middle School?
About 1.4 km in a straight line, between Phoenix and Phoenix in Arizona.
Which has the better Enrollment?
Hearn Academy The - A Ball Charter School: 678. Mountain Sky Middle School: 672. Students enrolled in the latest NCES directory year.
How do Hearn Academy The - A Ball Charter School and Mountain Sky Middle School rank in Arizona?
Hearn Academy The - A Ball Charter School is 126th of 1,136 and Mountain Sky Middle School is 91st of 203 among elementary schools in Arizona on the 2025 Success Index (US).