Herndon High vs Sully Elementary
A head-to-head comparison of two schools in Virginia, United States, 2.4 km apart, using official American 2025 data. The better value in each row is highlighted.
Herndon High
Herndon · Public high · Grades 9–12
2,261 students
Sully Elementary
Sterling · Public elementary · Grades PK–5
476 students
| Measure | Herndon High Herndon, Virginia | Sully Elementary Sterling, Virginia |
|---|---|---|
| Success Index (US) | 76 Top 25% | 51 Top 50% |
| State rank | #110 of 317 | #1051 of 1,142 |
| National rank | #1899 of 16,910 | #24226 of 50,301 |
| Sector | Public | Public |
| Type | High | Elementary |
| Year range | Grades 9–12 | Grades PK–5 |
| Students | 2,261 | 476 |
| Enrollment | 2,261 | 476 |
| Free/reduced-price lunch | 49.5% | 99.4% |
| Students per teacher | 11.7 | 9.2 |
| Reading proficiency | 75% | 45% |
| Math proficiency | 82% | 63% |
| city | Herndon | Sterling |
| state | Virginia | Virginia |
| Website | – | – |
The verdict
- •Herndon High scores higher on the Success Index (US) (76.2 vs 51.4).
- •Herndon High does better on math proficiency (82% vs 63%).
- •Herndon High does better on reading proficiency (75% vs 45%).
- •Herndon High does better on community advantage (fewer free/reduced-price lunch) (49.5% vs 99.4%).
- •Sully Elementary does better on students per teacher (9.2 vs 11.7).
- •Herndon High is the larger school with 2,261 students compared with 476.
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 Herndon High better than Sully Elementary?
On the Success Index (US), Herndon High ranks higher (76.2 vs 51.4 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 Herndon High and Sully Elementary?
About 2.4 km in a straight line, between Herndon and Sterling in Virginia.
Which has the better Enrollment?
Herndon High: 2,261. Sully Elementary: 476. Students enrolled in the latest NCES directory year.
How do Herndon High and Sully Elementary rank in Virginia?
Herndon High is 110th of 317 and Sully Elementary is 1051st of 1,142 among high schools in Virginia on the 2025 Success Index (US).