The Mercer Island School District has one comprehensive high school, one middle school, four elementary schools and the Crest Learning Center – an alternative high school program. Crest grades are housed on the MIHS transcript. Local private and parochial school students also matriculate to Mercer Island High School. 94% of high school age students on Mercer Island attend Mercer Island High School. There are approximately 4,445 students attending school in the district, of which approximately 1,448 are in grades 9-12 at Mercer Island High School.