The Aichhorn Center was organized as a not-for-profit corporation in New York State in 1977 to serve, to study and to teach about the special problems of providing long-term care and treatment to teenagers who were "unplaceable" in any existing facilities except State hospitals or correctional institutions. The Aichhorn Center currently operates three residential service programs: two Residential Treatment Facilities (RTFs) and a Young Adult Support Living program, (YASL), as well as the Aichhorn School, located in the RTFs. The RTF-Manhattan and the YASL program are located in the Manhattan Valley neighborhood near Central Park and Columbia University, in New York City. The RTF-Brooklyn is located in the Weeksville section of Brooklyn.