Mercer Island High School
Mercer Island, Washington · Grades 9–12 · 1,524 students
Enrollment
1,524
Grades
9–12
Free / reduced lunch
6.5%
Type
Public school
Part of
Methodology & sources
- NCES Common Core of Data (CCD) directory (as of 2022)
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Data last refreshed July 7, 2026.