Montana Prison & Jail Facilities

Montana has 145 correctional facilities, including state prisons, county jails, federal facilities, and reentry centers. Browse the full list from the facility table below, or use the search box to find a specific prison by name.

Montana has an imprisonment rate of 362 per 100,000 people. A total of 6,437 people are currently incarcerated in Montana, with 9,524 on probation and 1,683 on parole. View recent arrests in Montana or search the US inmate locator for individual records.

Montana Prison & Jail System Overview

Montana operates 67 correctional facilities under the state Department of Corrections. These facilities include state prisons, county jails, reentry centers, and probation offices.

The state has 6 regional and city jails, which serve as pre-trial detention centers for individuals awaiting arraignment, bail hearings, or transfer to a state institution.

Montana operates 2 reentry and transitional facilities — also known as halfway houses or residential reentry centers — that provide supervised housing and services to individuals transitioning from incarceration back into the community.

An additional 68 facilities in Montana serve administrative, probation, or specialized supervision roles.

Searching for Inmates in Montana

The Montana Department of Justice maintains a public offender search tool at their official state inmate locator. You can search by the person's full name, inmate ID number, or register number. The tool typically returns results including the inmate's name, current facility, gender, race, offense, and projected release date.

For a comprehensive search that covers all facilities and includes inmates who may have transferred across state lines, use our nationwide inmate locator, which covers 2.65 million+ federal inmate records. You can also run a full background check that searches across court records, arrest records, and public data from all 50 states.

Prison Population in Montana by Incarceration Status

The chart and table below show the distribution of the Montana correctional population by supervision status. 6,437 people are currently incarcerated, with 9,524 on probation and 1,683 on parole.

Prison Population by Gender in Montana

The incarcerated population in Montana is predominantly male. 3,457 male and 470 female individuals are currently incarcerated. Female incarceration has grown significantly over the past three decades, driven largely by drug-related offenses and mandatory minimum sentencing.

How to Use the Montana Prison Search Tool

Finding a prison facility in Montana is easy with AllJailSearch.us. We have 145 facilities listed in Montana. Use the search box at the top of the page to find any prison by name, or browse the complete facility table below.

Each facility page provides the following information:

• Visiting Hours — Scheduled days and times for in-person visits
• Visitation Rules — Dress code, ID requirements, and prohibited items
• Phone Number — Direct line to facility administration
• Email & Fax — For correspondence and document submission
• Physical Address — With a driving directions map
• Inmate Locator — Search inmates currently held at the facility
• Send Money Instructions — State-approved methods for commissary deposits
• Phone Call Setup — Carrier information and account setup instructions

How to Contact, Visit, and Send Money to an Inmate in Montana

Visiting an inmate in Montana requires advance approval. You must be added to the inmate's approved visitor list before arriving at any facility. Most facilities allow one or two visits per week during scheduled visiting hours.

• Bring a valid, government-issued photo ID on every visit. A driver's license, state ID, or passport is accepted at most facilities.
• Review the facility's dress code before arriving. No revealing clothing, no gang-affiliated colors, and no clothing resembling inmate uniforms are permitted.
• Arrive on time — late arrivals are often turned away. Some facilities require check-in up to 30 minutes before the visit begins.
• Book your visit in advance — walk-in visits are not permitted at most state prisons. Contact the facility directly to schedule.
• Respect facility staff and rules — any violation may result in immediate termination of the visit and possible loss of future visiting privileges.
• Complete the visitor application if you have not visited before. Download the Montana visitor application.

Read our complete guide to visiting an inmate in prison before your first visit.

Sending Money to an Inmate in Montana

The Montana Department of Corrections allows family members and friends to deposit money into an inmate's commissary trust account. Inmates use these funds to purchase hygiene products, food, phone credits, and other approved items from the facility store. Use the following approved methods to send money to an inmate in Montana:

Montana inmates rely on a commissary trust account to purchase approved items inside the facility. The Montana Department of Corrections accepts deposits through JPay and money orders by mail.

Method 1 — JPay (Online & Mobile, Recommended)

• Visit JPay.com or the app: Android iOS
• Search by the inmate's Montana DOC number or name. Pay by debit or credit card. Funds post within 24–48 hours.

Method 2 — JPay Phone

• Call JPay at 1-800-574-5729 (24/7) to make a deposit by phone.

Method 3 — Money Order by Mail (USPS Only)

• Make the money order payable to the inmate's full name with the Montana DOC number on the memo line.
• Send via USPS to the specific facility's business office. Processing time: 5–10 business days.

Information Required

• Inmate's full committed name
• Montana DOC inmate number
• Facility name

Read our full inmate money guide for Montana-specific instructions.

Read our full guide to sending money to an inmate for step-by-step instructions on every method.

Calling an Inmate in Montana

Phone calls from Montana correctional facilities are managed through the facility's approved phone carrier. Inmates can only make outgoing collect calls — they cannot receive incoming calls. You must set up a prepaid account with the carrier before any calls can be placed. All calls are recorded and subject to monitoring. Read our inmate phone call setup guide for full instructions.

Types of Prisons & Jails in Montana

The 145 facilities in Montana span a wide range of security levels and facility types — from minimum-security federal camps to maximum-security state penitentiaries. The table below shows the breakdown by facility type and security classification.

Complete List of Montana Prison & Jail Facilities

This is the complete list of Montana correctional facilities. Results are paginated at 20 per page. Select any facility name to view its full profile, including visiting hours, inmate locator, phone number, address, and driving directions.

Showing 1 – 20 of 145 facilities.

Browse Prisons by County in Montana

Montana has 56 counties with correctional facilities. Select a county below to view recent arrests and facility information for that area.

Helpful Guides for Inmates & Families

Whether you are looking for an inmate, planning a visit, or trying to support a loved one through incarceration, our guides cover every step of the process.

• How to Call an Inmate — Set up a prepaid account and make your first call.
• How to Send Money to an Inmate — Approved deposit methods for every state.
• Complete Visitation Guide — Rules, dress code, and what to expect.
• How to Get Bail — Understanding bail bonds and the pre-trial release process.
• How to Hire a Criminal Defense Lawyer — What to look for and how to find representation.
• Financial Help for Prisoner Families — Government benefits, nonprofits, and emergency aid.
• Life After Prison — Reentry Guide — Employment, housing, and reintegration resources.