Mariposa Elementary vs Ray Wiltsey Middle
A head-to-head comparison of two schools in California, United States, 284 m apart, using official American 2025 data. The better value in each row is highlighted.
Mariposa Elementary
Ontario · Public elementary · Grades K–6
537 students
Ray Wiltsey Middle
Ontario · Public middle · Grades 6–8
727 students
| Measure | Mariposa Elementary Ontario, California | Ray Wiltsey Middle Ontario, California |
|---|---|---|
| Success Index (US) | 15 Lower 50% | 20 Lower 50% |
| State rank | #4916 of 5,693 | #968 of 1,334 |
| National rank | #47442 of 50,301 | #13775 of 15,369 |
| Sector | Public | Public |
| Type | Elementary | Middle |
| Year range | Grades K–6 | Grades 6–8 |
| Students | 537 | 727 |
| Enrollment | 537 | 727 |
| Free/reduced-price lunch | 94.8% | 95.2% |
| Students per teacher | 21.5 | 17.7 |
| Reading proficiency | 33% | 35% |
| Math proficiency | 24% | 25% |
| city | Ontario | Ontario |
| state | California | California |
| Website | – | – |
The verdict
- •Ray Wiltsey Middle scores higher on the Success Index (US) (20.0 vs 15.4).
- •Ray Wiltsey Middle does better on math proficiency (25% vs 24%).
- •Ray Wiltsey Middle does better on reading proficiency (35% vs 33%).
- •Mariposa Elementary does better on community advantage (fewer free/reduced-price lunch) (94.8% vs 95.2%).
- •Ray Wiltsey Middle does better on students per teacher (17.7 vs 21.5).
- •Ray Wiltsey Middle is the larger school with 727 students compared with 537.
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 Mariposa Elementary better than Ray Wiltsey Middle?
On the Success Index (US), Ray Wiltsey Middle ranks higher (20.0 vs 15.4 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 Mariposa Elementary and Ray Wiltsey Middle?
About 284 m in a straight line, between Ontario and Ontario in California.
Which has the better Enrollment?
Mariposa Elementary: 537. Ray Wiltsey Middle: 727. Students enrolled in the latest NCES directory year.
How do Mariposa Elementary and Ray Wiltsey Middle rank in California?
Mariposa Elementary is 4916th of 5,693 and Ray Wiltsey Middle is 968th of 1,334 among elementary schools in California on the 2025 Success Index (US).