Arroyo Elementary vs Royal High
A head-to-head comparison of two schools in California, United States, 2.3 km apart, using official American 2025 data. The better value in each row is highlighted.
Arroyo Elementary
Simi Valley · Public elementary · Grades K–6
264 students
Royal High
Simi Valley · Public high · Grades 9–12
1,835 students
| Measure | Arroyo Elementary Simi Valley, California | Royal High Simi Valley, California |
|---|---|---|
| Success Index (US) | 26 Lower 50% | 45 Lower 50% |
| State rank | #3714 of 5,693 | #484 of 1,343 |
| National rank | #41183 of 50,301 | #9740 of 16,910 |
| Sector | Public | Public |
| Type | Elementary | High |
| Year range | Grades K–6 | Grades 9–12 |
| Students | 264 | 1,835 |
| Enrollment | 264 | 1,835 |
| Free/reduced-price lunch | 67% | 43.1% |
| Students per teacher | 22.0 | 22.1 |
| Reading proficiency | 42% | 61% |
| Math proficiency | 17% | 29% |
| city | Simi Valley | Simi Valley |
| state | California | California |
| Website | – | – |
The verdict
- •Royal High scores higher on the Success Index (US) (44.8 vs 25.8).
- •Royal High does better on math proficiency (29% vs 17%).
- •Royal High does better on reading proficiency (61% vs 42%).
- •Royal High does better on community advantage (fewer free/reduced-price lunch) (43.1% vs 67%).
- •Arroyo Elementary does better on students per teacher (22.0 vs 22.1).
- •Royal High is the larger school with 1,835 students compared with 264.
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 Royal High?
On the Success Index (US), Royal High ranks higher (44.8 vs 25.8 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 Royal High?
About 2.3 km in a straight line, between Simi Valley and Simi Valley in California.
Which has the better Enrollment?
Arroyo Elementary: 264. Royal High: 1,835. Students enrolled in the latest NCES directory year.
How do Arroyo Elementary and Royal High rank in California?
Arroyo Elementary is 3714th of 5,693 and Royal High is 484th of 1,343 among elementary schools in California on the 2025 Success Index (US).