Massapequa High School is a public high school located in Massapequa, New York, United States, for students in grades 10 through 12. Students in grade 9 attend the Massapequa High School Ames campus, which is located at 198 Baltimore Avenue in Massapequa. As of the 2014-15 school year, the school had an enrollment of 1,825 students and 142.4 classroom teachers, for a student–teacher ratio of 12.8:1.