Chantilly High vs Rocky Run Middle
A head-to-head comparison of two schools in Virginia, United States, 742 m apart, using official American 2025 data. The better value in each row is highlighted.
Chantilly High
Chantilly · Public high · Grades 9–12
2,937 students
Rocky Run Middle
Chantilly · Public middle · Grades 7–8
882 students
| Measure | Chantilly High Chantilly, Virginia | Rocky Run Middle Chantilly, Virginia |
|---|---|---|
| Success Index (US) | 91 Top 5% | 90 Top 5% |
| State rank | #7 of 317 | #41 of 340 |
| National rank | #189 of 16,910 | #322 of 15,369 |
| Sector | Public | Public |
| Type | High | Middle |
| Year range | Grades 9–12 | Grades 7–8 |
| Students | 2,937 | 882 |
| Enrollment | 2,937 | 882 |
| Free/reduced-price lunch | 20.7% | 19.6% |
| Students per teacher | 12.9 | 15.2 |
| Reading proficiency | 94% | 93% |
| Math proficiency | 95% | 93% |
| city | Chantilly | Chantilly |
| state | Virginia | Virginia |
| Website | – | – |
The verdict
- •Chantilly High scores higher on the Success Index (US) (90.9 vs 89.5).
- •Chantilly High does better on math proficiency (95% vs 93%).
- •Chantilly High does better on reading proficiency (94% vs 93%).
- •Rocky Run Middle does better on community advantage (fewer free/reduced-price lunch) (19.6% vs 20.7%).
- •Chantilly High does better on students per teacher (12.9 vs 15.2).
- •Chantilly High is the larger school with 2,937 students compared with 882.
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 Chantilly High better than Rocky Run Middle?
On the Success Index (US), Chantilly High ranks higher (90.9 vs 89.5 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 Chantilly High and Rocky Run Middle?
About 742 m in a straight line, between Chantilly and Chantilly in Virginia.
Which has the better Enrollment?
Chantilly High: 2,937. Rocky Run Middle: 882. Students enrolled in the latest NCES directory year.
How do Chantilly High and Rocky Run Middle rank in Virginia?
Chantilly High is 7th of 317 and Rocky Run Middle is 41st of 340 among high schools in Virginia on the 2025 Success Index (US).