About IMSI

IMSI opened in November 1989 to confine Idaho's most violent offenders. The compound is located within a double perimeter fence reinforced with razor wire and an electronic detection system. The offender population is comprised of a large number of mental health offenders, including civil commitments. Thirty beds are dedicated for acute mentally ill. IMSI has restrictive housing beds dedicated to administrative segregation, disciplinary detention and sentence of death. The remaining beds are allocated for close-custody general population offenders.

Safe Operating Capacity: 442
Address: 13400 S. Pleasant Valley Rd, Kuna, ID 83634
Mailing Address: P.O. Box 51, Boise, ID 83707
Telephone: 208-338-1635

  Visiting Hours

Visiting times are APPROXIMATELY two hours long. A visitor's application must be pre-approved prior to visiting. Visting time may be reduced due to institutional needs.

Visiting Days are: Thursday, Friday, Saturday and Sunday.

Visiting Schedule [pdf document]