Casa Grande High vs River Montessori Elementary Charter
A head-to-head comparison of two schools in California, United States, 2.1 km apart, using official American 2025 data. The better value in each row is highlighted.
Casa Grande High
Petaluma · Public high · Grades 9–12
1,653 students
River Montessori Elementary Charter
Petaluma · Charter elementary · Grades K–6
144 students
| Measure | Casa Grande High Petaluma, California | River Montessori Elementary Charter Petaluma, California |
|---|---|---|
| Success Index (US) | 57 Top 50% | 42 Lower 50% |
| State rank | #290 of 1,343 | #2420 of 5,693 |
| National rank | #6650 of 16,910 | #30896 of 50,301 |
| Sector | Public | Charter |
| Type | High | Elementary |
| Year range | Grades 9–12 | Grades K–6 |
| Students | 1,653 | 144 |
| Enrollment | 1,653 | 144 |
| Free/reduced-price lunch | 48.6% | 24.3% |
| Students per teacher | 21.8 | 28.8 |
| Reading proficiency | 77% | 47% |
| Math proficiency | 43% | 17% |
| city | Petaluma | Petaluma |
| state | California | California |
| Website | – | – |
The verdict
- •Casa Grande High scores higher on the Success Index (US) (56.6 vs 41.6).
- •Casa Grande High does better on math proficiency (43% vs 17%).
- •Casa Grande High does better on reading proficiency (77% vs 47%).
- •River Montessori Elementary Charter does better on community advantage (fewer free/reduced-price lunch) (24.3% vs 48.6%).
- •Casa Grande High does better on students per teacher (21.8 vs 28.8).
- •Casa Grande High is the larger school with 1,653 students compared with 144.
- •Casa Grande High is a public school while River Montessori Elementary Charter is a charter 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 Casa Grande High better than River Montessori Elementary Charter?
On the Success Index (US), Casa Grande High ranks higher (56.6 vs 41.6 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 Casa Grande High and River Montessori Elementary Charter?
About 2.1 km in a straight line, between Petaluma and Petaluma in California.
Which has the better Enrollment?
Casa Grande High: 1,653. River Montessori Elementary Charter: 144. Students enrolled in the latest NCES directory year.
How do Casa Grande High and River Montessori Elementary Charter rank in California?
Casa Grande High is 290th of 1,343 and River Montessori Elementary Charter is 2420th of 5,693 among high schools in California on the 2025 Success Index (US).