Half Hollow Hills High School East is one of two high schools in the school district; the other is High School…More West. Both serve grades nine through 12. Hills East is the larger of the two, as it once housed both a middle and a high school.
It has two main offices, two gymnasiums, two auditoriums and two cafeterias, one of which has been converted to a weight room. It is located across the street from the Dix Hills branch of the Half Hollow Hills Community Library. High School East is the home of the red, white and black Thunderbirds.