New Plymouth High School is the high school of New Plymouth, Idaho.It was built in 1986 after the previous high school building burned down in a fire on December 18, 1984. Originally, it was designed as a junior-senior high school, housing grades seven through twelve. In 1996, the city of New Plymouth approved a school bond and built New Plymouth Middle School in order to relieve crowding in the high school and New Plymouth Elementary School by housing grades six through eight.