Mount Si High School

Snoqualmie, WA · Snoqualmie Valley School District · Grades 9–12

Seattle-Tacoma-Bellevue, WA

SchoolDecoder rankings are coming soon for Mount Si High School.

We're building decoded rankings for the Seattle-Tacoma-Bellevue, WA area, separating school quality signals from neighborhood advantage. Rankings will appear here once the school meets our suppression and confidence thresholds.

In the meantime

High School Outcomes

Latest available data

Graduation 2025 · Coursework 2021 · AP exams 2015 · SAT/ACT 2021

Graduation
96%
2025 cohort · 97% extended · 518 students in cohort
AP coursework
663
397 exam takers (2015) · 80% scored 3+
Advanced options
AP · Dual credit
301 students in advanced math · CRDC 2021
SAT/ACT tested
316
CRDC 2021

Data limitations

  • Graduation uses state cohort data. Coursework, offerings, and SAT/ACT counts use the latest available federal CRDC extracts, which can lag current graduation data.
  • SAT/ACT data is count-only in this extract; without an enrollment denominator, we do not treat it as a participation rate.
  • HS Decoded Rank is alpha-only: it summarizes how the school's grade 10/11 test scores compare to expectations from its demographic context, ranked against other HSs in the same metro / state / rural cohort. Graduation, AP, and SAT/ACT data above are descriptive context — they are not yet blended into the composite rank.