State Correctional Institution – Smithfield

State Correctional Institution – Smithfield (SCI Smithfield) is a close-security correctional facility for men on the grounds of SCI-Huntingdon, near Huntingdon in the Allegheny Mountains. SCI Smithfield was opened in 1988 during a "growth spurt of the "bursting at the seams" correctional system in the Commonwealth of Pennsylvania.

Notable prisoners

 * George Feigley, sex cult leader