Chief Sealth International High School vs Summit Public School: Atlas
A head-to-head comparison of two high schools in Washington, United States, 1.6 km apart, using official American 2025 data. The better value in each row is highlighted.
Chief Sealth International High School
Seattle · Public high · Grades 9–12
1,184 students
Summit Public School: Atlas
Seattle · Charter high · Grades 6–12
566 students
| Measure | Chief Sealth International High School Seattle, Washington | Summit Public School: Atlas Seattle, Washington |
|---|---|---|
| Success Index (US) | 52 Top 50% | 58 Top 50% |
| State rank | #179 of 333 | #136 of 333 |
| National rank | #7746 of 16,910 | #6393 of 16,910 |
| Sector | Public | Charter |
| Type | High | High |
| Year range | Grades 9–12 | Grades 6–12 |
| Students | 1,184 | 566 |
| Enrollment | 1,184 | 566 |
| Free/reduced-price lunch | 51.6% | 43.5% |
| Students per teacher | 19.1 | 16.6 |
| Reading proficiency | 68% | 58% |
| Math proficiency | 41% | 51% |
| city | Seattle | Seattle |
| state | Washington | Washington |
| Website | – | – |
The verdict
- •Summit Public School: Atlas scores higher on the Success Index (US) (57.7 vs 52.4).
- •Summit Public School: Atlas does better on math proficiency (51% vs 41%).
- •Chief Sealth International High School does better on reading proficiency (68% vs 58%).
- •Summit Public School: Atlas does better on community advantage (fewer free/reduced-price lunch) (43.5% vs 51.6%).
- •Summit Public School: Atlas does better on students per teacher (16.6 vs 19.1).
- •Chief Sealth International High School is the larger school with 1,184 students compared with 566.
- •Chief Sealth International High School is a public school while Summit Public School: Atlas is a charter school, so fees and admission rules differ.
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 Chief Sealth International High School better than Summit Public School: Atlas?
On the Success Index (US), Summit Public School: Atlas ranks higher (57.7 vs 52.4 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 Chief Sealth International High School and Summit Public School: Atlas?
About 1.6 km in a straight line, between Seattle and Seattle in Washington.
Which has the better Enrollment?
Chief Sealth International High School: 1,184. Summit Public School: Atlas: 566. Students enrolled in the latest NCES directory year.
How do Chief Sealth International High School and Summit Public School: Atlas rank in Washington?
Chief Sealth International High School is 179th of 333 and Summit Public School: Atlas is 136th of 333 among high schools in Washington on the 2025 Success Index (US).