| 6 | 7 | 8 | 9 | 10 | 11 | 12 |
|---|---|---|---|---|---|---|
| 29 | 29 | 40 | 51 | 68 | 79 | 88 |
Enrollment by grade, 2024-25 school year, as reported to the WA State Board of Education.
NCES Private School Universe Survey, 2021-22 (the most recent federal collection). Private-school demographics are reported biennially and lag public-school data.
Known results compiled from public competition listings (National Merit press lists, tournament PDFs, The Blue Alliance). A missing result is not evidence of absence.
Independent school on Capitol Hill/First Hill, Seattle · grades 6–12 · 384 students (WA SBE, 2024-25; school-reported: 419) · nonsectarian day school with Seattle's only boarding program
Most Seattle private schools at this price compete on credentials. The Northwest School charges $51,030 for Upper School in 2026-27 and then refuses to play. There is no Advanced Placement (AP) program and no International Baccalaureate (IB), admissions are test-optional, four years of arts are required, and a graduation requirement called the "Environment" program has every student sweeping floors and hauling trash weekly. It is also the only independent school in the city with boarding (43 boarders and 44 international students on F-1 visas, per the school). The aid design is unusually clean: 21% of families receive assistance averaging $35,398, and the Experience Fund pays 100% of every non-tuition cost for any aid family, from the bus and athletics to books and trips. Aggregators put acceptance between 48% and 60% (unofficial, low confidence), so fit, not scarcity, is the gate. The graduate it manufactures heads to Whitman, Pitzer, Vassar, NYU, or the University of Washington, and that liberal-arts skew is the product, not an accident. Families who need a conventional STEM ladder or a transcript that reads in Advanced Placement terms should think hard; families with an articulate, arts-inclined, self-directed kid may have found the fit.
Researched 2026-07-04. Citations and claim ledger included in the full dossier.
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