The Montana Department of Corrections runs the search for people in Montana state prisons. Here is how to use it, what it covers, and where to look if the person is not there.

Agency
Montana Department of Corrections
Official search
Correctional Offender Network search
ID number
Department of Corrections ID number

Open the Correctional Offender Network search

The Montana Department of Corrections runs a public search called Correctional Offender Network search. You can search by Department of Corrections ID number, last name or first name.

  • It searches records of people convicted of felonies in Montana.

The number to write down is the Department of Corrections ID number. You will need it to send money or mail, to set up calls and visits, and to find the same person again.

Montana state prisons we list

We do not copy the Montana prison inmate list yet. These are the state prisons in our Montana directory, with address, phone and visiting basics. Use the department's search above to find a person.

State prison, county jail or federal prison?

The Montana Department of Corrections holds people serving state prison sentences. Someone arrested in the last few days is almost always in a county jail instead, and will not show up in the state prison search yet. For a recent arrest, start with the county: open our Montana page and pick the county where the arrest happened.

People sentenced for federal crimes are held by the Federal Bureau of Prisons, which has its own search. See federal inmate search (BOP).

After you find them

Questions

What do I need to search the Montana DOC inmate list?

The Correctional Offender Network search lets you search by Department of Corrections ID number, last name or first name. A full legal name or the ID number works best.

Someone was just arrested in Montana. Will they be in the Montana DOC search?

Usually not. People who were just arrested are held in a county jail first. They are moved to a state prison only after a sentence to state prison. Check the county jail where the arrest happened.

Is searchinmates.org part of the Montana Department of Corrections?

No. searchinmates.org is a private website. It is not affiliated with the Montana Department of Corrections or any government agency. The department's own search is the source of record.

Sources

We opened each of these pages on October 14, 2026. Rules and numbers change, so check the source before you act.

searchinmates.org is a private website, not a government site, and is not affiliated with any agency named here. This page is general information, not legal advice. Removing a record from our site is always free: request removal.