The Main is located in the heart of Huntington Village, on the corner of Prospect Street and Main Street. The Main has a large auditorium and two smaller meeting rooms, one room for Children's programs and a conference room. There is also a Local History room located on the second floor and an Art Gallery located on the lower level.

The Station Branch is located south of the LIRR train station on New York Avenue (Route 110). It has public computers for children, teen and adults, a large community room on the second floor as well as five smaller meeting rooms and a classroom style training room.