Arroyo Elementary vs Mariposa Elementary
A head-to-head comparison of two elementary schools in California, United States, 2.2 km apart, using official American 2025 data. The better value in each row is highlighted.
Arroyo Elementary
Ontario · Public elementary · Grades K–8
493 students
Mariposa Elementary
Ontario · Public elementary · Grades K–6
537 students
| Measure | Arroyo Elementary Ontario, California | Mariposa Elementary Ontario, California |
|---|---|---|
| Success Index (US) | 23 Lower 50% | 15 Lower 50% |
| State rank | #4008 of 5,693 | #4916 of 5,693 |
| National rank | #42867 of 50,301 | #47442 of 50,301 |
| Sector | Public | Public |
| Type | Elementary | Elementary |
| Year range | Grades K–8 | Grades K–6 |
| Students | 493 | 537 |
| Enrollment | 493 | 537 |
| Free/reduced-price lunch | 76.3% | 94.8% |
| Students per teacher | 21.4 | 21.5 |
| Reading proficiency | 35% | 33% |
| Math proficiency | 29% | 24% |
| city | Ontario | Ontario |
| state | California | California |
| Website | – | – |
The verdict
- •Arroyo Elementary scores higher on the Success Index (US) (23.1 vs 15.4).
- •Arroyo Elementary does better on math proficiency (29% vs 24%).
- •Arroyo Elementary does better on reading proficiency (35% vs 33%).
- •Arroyo Elementary does better on community advantage (fewer free/reduced-price lunch) (76.3% vs 94.8%).
- •Arroyo Elementary does better on students per teacher (21.4 vs 21.5).
- •Mariposa Elementary is the larger school with 537 students compared with 493.
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 Arroyo Elementary better than Mariposa Elementary?
On the Success Index (US), Arroyo Elementary ranks higher (23.1 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 Arroyo Elementary and Mariposa Elementary?
About 2.2 km in a straight line, between Ontario and Ontario in California.
Which has the better Enrollment?
Arroyo Elementary: 493. Mariposa Elementary: 537. Students enrolled in the latest NCES directory year.
How do Arroyo Elementary and Mariposa Elementary rank in California?
Arroyo Elementary is 4008th of 5,693 and Mariposa Elementary is 4916th of 5,693 among elementary schools in California on the 2025 Success Index (US).