Keystone Montessori Charter School vs Kyrene de la Sierra School
A head-to-head comparison of two schools in Arizona, United States, 215 m apart, using official American 2025 data. The better value in each row is highlighted.
Keystone Montessori Charter School
Phoenix · Charter other · Grades 1–9
203 students
Kyrene de la Sierra School
Phoenix · Public elementary · Grades PK–5
518 students
| Measure | Keystone Montessori Charter School Phoenix, Arizona | Kyrene de la Sierra School Phoenix, Arizona |
|---|---|---|
| Success Index (US) | – Not rated | 83 Top 10% |
| State rank | – | #37 of 1,136 |
| National rank | – | #3637 of 50,301 |
| Sector | Charter | Public |
| Type | Other | Elementary |
| Year range | Grades 1–9 | Grades PK–5 |
| Students | 203 | 518 |
| Enrollment | 203 | 518 |
| Free/reduced-price lunch | – | – |
| Students per teacher | 15.6 | 17.9 |
| Reading proficiency | 82% | 88% |
| Math proficiency | 72% | 86% |
| city | Phoenix | Phoenix |
| state | Arizona | Arizona |
| Website | – | – |
The verdict
- •Kyrene de la Sierra School does better on math proficiency (86% vs 72%).
- •Kyrene de la Sierra School does better on reading proficiency (88% vs 82%).
- •Keystone Montessori Charter School does better on students per teacher (15.6 vs 17.9).
- •Kyrene de la Sierra School is the larger school with 518 students compared with 203.
- •Keystone Montessori Charter School is a charter school while Kyrene de la Sierra 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 Keystone Montessori Charter School better than Kyrene de la Sierra School?
The two schools are very close on the Success Index (US). Differences in sector, size, programmes and distance from home will matter more than the score.
How far apart are Keystone Montessori Charter School and Kyrene de la Sierra School?
About 215 m in a straight line, between Phoenix and Phoenix in Arizona.
Which has the better Enrollment?
Keystone Montessori Charter School: 203. Kyrene de la Sierra School: 518. Students enrolled in the latest NCES directory year.
How do Keystone Montessori Charter School and Kyrene de la Sierra School rank in Arizona?
Keystone Montessori Charter School is unranked and Kyrene de la Sierra School is 37th of 1,136 among other schools in Arizona on the 2025 Success Index (US).