The Island Trees High School is a coeducational 9-12 high school located at 59 Straight Lane, Levittown, New York, (USA) 11756 on Long Island. It is a part of the Island Trees Union Free School District, 31.0 miles east of Manhattan. The school offers various clubs, electives, and AP courses.
A dispute over the removal of books from the high school library lead eventually to the United States Supreme Court, where a fractured court ruled in Island Trees School District v. Pico that the school board had no power to remove the books.
In the summer of 2008, the High School was testing for possible lead contamination. According to Newsday, the school spent $141,000 to do the testing, which continued through the end of September.