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 death row. The remaining beds are allocated for close-custody general population offenders.

Safe Operating Capacity: 517
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. Visitors’application must be pre-approved prior to visiting. Visiting times are approximately two hours long.
Visting time may be reduced due to institutional needs.

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

Visiting Schedule:

A Block

A Block Tiers 1 & 3  (cells 1 – 32 & cells 65 – 96)

• Offenders must schedule their visits in advance by submitting a visiting request
• Offenders may have one visit per visiting day.
• Only eight offenders may visit during a visiting session.
• If more than eight offenders have submitted a request for the same visiting session the A Block Sergeant or designee will determine who will be approved for the visiting session.

E Block & G Blocks

• Visiting will be in the J Block Multi-Purpose Room

Restrictive Housing:
A-2 = A Block Tier 2 (cells 33 – 64)
B Blk = B Block (all cells)
C-1 = C Block Tier 1 (cells 1 –32)
J Blk = J Block (all cells)

• These are non-contact visits
• The offenders in these units must schedule their visits in advance.