Glacier Middle School vs Sylvester Middle School
A head-to-head comparison of two middle schools in Washington, United States, 3.8 km apart, using official American 2025 data. The better value in each row is highlighted.
Glacier Middle School
SeaTac · Public middle · Grades 6–8
803 students
Sylvester Middle School
Burien · Public middle · Grades 6–8
582 students
| Measure | Glacier Middle School SeaTac, Washington | Sylvester Middle School Burien, Washington |
|---|---|---|
| Success Index (US) | 19 Lower 50% | 41 Lower 50% |
| State rank | #350 of 363 | #262 of 363 |
| National rank | #13876 of 15,369 | #9571 of 15,369 |
| Sector | Public | Public |
| Type | Middle | Middle |
| Year range | Grades 6–8 | Grades 6–8 |
| Students | 803 | 582 |
| Enrollment | 803 | 582 |
| Free/reduced-price lunch | 75.5% | 49.5% |
| Students per teacher | 22.9 | 19.4 |
| Reading proficiency | – | 47% |
| Math proficiency | – | 34% |
| city | SeaTac | Burien |
| state | Washington | Washington |
| Website | – | – |
The verdict
- •Sylvester Middle School scores higher on the Success Index (US) (41.2 vs 19.4).
- •Sylvester Middle School does better on community advantage (fewer free/reduced-price lunch) (49.5% vs 75.5%).
- •Sylvester Middle School does better on students per teacher (19.4 vs 22.9).
- •Glacier Middle School is the larger school with 803 students compared with 582.
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 Glacier Middle School better than Sylvester Middle School?
On the Success Index (US), Sylvester Middle School ranks higher (41.2 vs 19.4 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 Glacier Middle School and Sylvester Middle School?
About 3.8 km in a straight line, between SeaTac and Burien in Washington.
Which has the better Enrollment?
Glacier Middle School: 803. Sylvester Middle School: 582. Students enrolled in the latest NCES directory year.
How do Glacier Middle School and Sylvester Middle School rank in Washington?
Glacier Middle School is 350th of 363 and Sylvester Middle School is 262nd of 363 among middle schools in Washington on the 2025 Success Index (US).