Sewanhaka High School is a six-year public high school located in Floral Park, New York. It is part of the Sewanhaka Central High School District. Sewanhaka High School was established in 1929. Its name translates to "Island of Shells" in English. As of the 2018–19 school year, the school had an enrollment of 1,669 students and 119.1 classroom teachers (on an FTE basis), for a student–teacher ratio of 14.0:1. There were 675 students (40.4% of enrollment) eligible for free lunch and 118 (7.1% of students) eligible for reduced-cost lunch.