Mercer Island High School is a public high school located in Mercer Island, Washington in the United States, as part of the Mercer Island School District.As of the 2014-15 school year, the school had an enrollment of 1,416 students and 69.6 classroom teachers, for a student–teacher ratio of 20.3:1. There were 54 students eligible for free lunch and 10 eligible for reduced-cost lunch.Awards and recognitionDuring the 2006-07 school year, Mercer Island High School was recognized with the Blue Ribbon School Award of Excellence by the United States Department of Education, the highest award an American school can receive.AcademicsWith average SAT scores of 635, 609, and 596 in the math, critical reading, and writing sections respectively, students who attend Mercer Island High School score just over one full standard deviation above the national average SAT score. Mercer Island also features the highest Washington Assessment of Student Learning scores statewide. Additionally, more than 90% of graduates pursue higher education, with 87% of those attending four-year institutions.Types of class offerings include special education, fine arts, honors, world languages, career and technical education, and AP classes. KMIH 94.5 FM is a student-run radio station and also an educational class at Mercer Island High School.