Collegiate School is an all-boys private school on the Upper West Side of Manhattan, New York City. Founded by Dutch colonists in either 1628 or 1638, it is the nation’s oldest private secondary school, and claims to be the nation’s oldest school without qualification. It educates around 670 boys in grades K–12, with approximately 50–55 students per grade.
It is a member of both the New York Interschool Association and the Ivy Preparatory School League, two groups of New York City secondary schools.
