New Toronto Secondary School was originally established on September 4, 1951 by the New Toronto Board of Education to serve the Town of New Toronto and emphasized the technical trades, sciences, and mathematics, to support the many industries in the town at the time. The school's roots go back to 1926 when Long Branch Continuation School was established as an extension of an elementary school with six classrooms. The vocational program began in 1950 and students moved to the new high school the following year.