The Missoula County Detention Facility (MCDF) opened on Nov. 1, 1999, replacing the overcrowded and outdated facility on the fourth floor of the courthouse annex.

The facility has three main components: a juvenile detention facility, a county adult detention facility and a contracted community corrections facility (MASC). The total capacity is 394.

MCDF operates similar to a self-contained town, with a clinic, library, school, counselors, dentist, phone system, commissary (store), banking, housing, religious services, courts and a staff that provides maintenance and security functions. MCDF operates a kitchen that serves approximately 1,100 nutritious meals a day. We have visiting areas for families, friends and attorneys.

The Detention Facility is a division of the Missoula County Sheriff’s Department and is headed by a Commander and an Assistant Commander and requires nearly 120 total staff to operate. The Missoula County Sheriff and Undersheriff oversee and manage all divisions within the Sheriff’s Department. There are also several jobs within the jail that inmates perform for a minimal wage. These positions include cooking, cleaning, laundry services, working in the library and floor maintenance.

The Detention Facility is located at 2340 Mullan Road. Please call (406) 258-4000 with any questions.


In person public visitation is available Monday, Tuesday, Thursday and Friday.

  • Offsite video visitation can be scheduled online at It is the inmate’s responsibility to convey their availability to visitors for video visits. 


  • Electronic deposits can be made with a debit/credit card online at
  •  Funds can be mailed to 2340 Mullan Road – Missoula, MT  59808.
    • The inmate’s name as well as the sender’s name and address must be included on the envelope.
    • All appropriate fields must be completed on the money order.  If all relevant information is not included, the money order or cashier’s check will be returned to sender.
    • We do not accept personal checks.
    • Money orders have a limit of $200.00.

Prison Rape Elimination Act (PREA)

The Prison Rape Elimination Act (PREA) was signed into law by President George W. Bush on September 4, 2003. It was created to eliminate sexual abuse in confinement facilities including adult prisons and jails, lockups, community confinement facilities and juvenile facilities.  PREA includes forty-three (43) standards that define three clear goals, to prevent, detect and respond to sexual abuse.  Read more...

County Jail

The Missoula County Jail portion of the Detention Facility holds inmates that have been found guilty and sentenced to county jail time (less than one year). The facility also holds people who have been accused of a crime, and who are awaiting trial. We hold inmates for several different law enforcement agencies in Missoula County, including Missoula Police Department, Montana Highway Patrol, University of Montana Police, the US Marshals Service, Montana Fish Wildlife and Parks, and the US Forrest Service.

Public Jail Roster - To return to this page, close the browser window for the Jail Roster.

Juvenile Detention

The Missoula County Detention Facility staffs and manages a 24-bed juvenile detention unit, which houses male and female juveniles between the ages of ten and 18 years of age. The unit is licensed annually by the Montana Department of Corrections (DOC). DOC ensures that the unit is operated in accordance with the Administrative Rules of Montana, the Montana Youth Court Act and the American Correctional Association Juvenile Standards and Practices.

In cooperation with the 4th Judicial District Court, the Missoula Youth Court, and the Missoula County Public Schools, the facility offers educational, religious and treatment programs to address the needs of juveniles placed in detention by the courts or law enforcement officers.

The unit has a level system that rewards good behavior by increasing privileges, such as the amount of dayroom time, the items authorized for purchase from commissary, extra recreation time, the addition of contact visiting privileges with their parents and different wakeup and shower times. Juveniles, who violate the facility rules of conduct, are afforded a hearing to involve the youth in participating in their own accountability and due process. A written grievance procedure allows juveniles to address their grievances and participate in affirmative efforts that teach responsibility and accountability.

Juveniles also have an hour of recreation, with a choice of indoor or outdoor recreation (weather permitting). Each juvenile has 30 minutes of free telephone time, plus 30 minutes of visitation, daily to encourage them to maintain contact with their immediate family.

Mental health, chemical dependency and medical treatment are available to address the needs of juveniles.

The facility employs equal numbers of specially trained, gender specific staff to ensure the care, welfare, safety and security of every youth placed in custody. Missoula County has consistently proven the priority placed on the value of our youth and the potential that can be encouraged and mentored through the consistent efforts of dedicated, specially trained staff utilizing evidence-based, best practices.

MASC (Missoula Assessment and Sanction Center)

MASC is the Missoula Assessment and Sanction Center, the program currently housed in the contracted unit of MCDF and holds 144 inmates. MASC is exclusive for male offenders and there is a similar program in Billings, Mt for female offenders. When an inmate from anywhere in Montana is found guilty and sentenced to Department of Corrections (DOC) by a District Court Judge, the prisoner is transported to MASC within our facility for screening and assessment to determine an appropriate placement. They may still go to Montana State Prison (MSP), but the goal is to find a placement in a community corrections program like Boot Camp, a Pre-Release Center, treatment center or placement on probation or parole.

Inmates that violate their parole may be sent to MASC for a short "sanction", then either go back out on parole or in extreme cases return to MSP.

"Trying to find information on an inmate in the Montana Department of Corrections system? Visit and search the state's Correctional Offender Network website."

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