Mercer Island High School

Mercer Island High School sits at the center of one of the most academically driven communities in the Pacific Northwest — a tight-knit island city just minutes from Seattle via I-90, where waterfront living meets suburban quiet and families tend to be deeply invested in education. Scores here are consistently among the highest in Washington, with math in particular standing out at the 99th percentile, making it a natural fit for families who prioritize rigorous academics and expect their kids to be well-prepared for competitive colleges. Life on "the Island" has a distinct character — walkable, community-minded, and somewhat insular in the best sense — and the school reflects that, drawing students who grow up together in a place small enough to feel like everyone knows everyone.