Mercer Island High School was created in 1957.
Mercer County High School was created in 2009.
Mercer County Senior High School was created in 2006.
Jordan Morris attended Mercer Island Elementary School in Mercer Island, Washington. He later went on to attend Mercer Island High School, where he excelled in soccer before moving on to play at Stanford University and professionally in Major League Soccer.
Island High School was created in 197#.
Rock Island High School was created in 1936.
Island Trees High School was created in 1949.
Island Coast High School was created in 2007.
Kent Island High School was created in 1998.
Vashon Island High School was created in 1912.
Merritt Island High School was created in 1965.
Staten Island Technical High School was created in 1988.
Long Island City High School was created in 1995.