Mercer Island High School
Public
High Grades 9–12 Virtual
Part of Mercer Island School District
9100 SE 42nd, Mercer Island, WA 98040 · (206) 236-3345
Community ratings
Not rated yetBe the first neighbor to rate this school — an overall score plus Teachers, Communication, Safety and Activities.
Academic performanceComing soon
State test scores coming soon
Proficiency and other measures from the WA Department of Education report card, shown against the state average.
At a glance
1,439Students enrolled
19:1Student–teacher ratio
7%Free / reduced lunch
SuburbSetting
Regular SchoolSchool type
Enrollment by grade
Grade 9352
Grade 10350
Grade 11361
Grade 12376
Students
White · 52%743
Asian · 25%362
Two or more races · 13%192
Hispanic · 7%102
Black · 1%20
Native Hawaiian/Pacific Islander · 0%5
American Indian/Alaska Native · 0%1
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
1,551’20
1,544’21
1,524’22
1,465’23
1,439’24
Location
9100 SE 42nd Mercer Island
Neighbor reviews
Sign in to rate this school.
School facts from the U.S. Department of Education (NCES), 2024-2025 school year. Community ratings and reviews reflect neighbor opinions, not an official measure of school quality.