The school derives its name from the nearby Tappan Zee section of the Hudson River.

The school draws students from Orangetown, New York, which comprises the villages and hamlets of Blauvelt, Grandview, Orangeburg, Tappan, Palisades, Piermont, Upper Grandview, Sparkill, and portions of South Nyack.

In addition, Tappan Zee High School hosts a play in the fall and a musical in the spring every year.

[3][4] Tappan Zee has created a yearly addition of the Halfmoon yearbook series since its founding.

), runs events throughout the year, such as fundraisers for different charities, book drives, a spirit week, and a pep rally.