Custer County MT Jail

County Jail

Last Updated: October 14, 2019
1010 Main St, Miles City, MT 59301

Custer Co Jail is for County Jail offenders sentenced up to twenty four months.

All prisons and jails have Security or Custody levels depending on the inmate’s classification, sentence, and criminal history. Please review the rules and regulations for County - medium facility.

The phone carrier is Securus Tech®, to see their rates and best-calling plans for your inmate to call you.

If you are unsure of your inmate's location, you can search and locate your inmate by typing in their last name, first name or first initial, and/or the offender ID number to get their accurate information immediately Registered Offenders

Satellite View of Custer County MT Jail

You can support your loved ones at Custer Co Jail on InmateAid, if you have any immediate questions contact the facility directly at 406-228-4333.

When someone you care about gets locked up, it's tough to figure out all the ins and outs of jail life. From sending mail to visiting, there are a lot of things to sort out. And getting info about the arrest? Not always easy. That's where this webpage comes in handy. It's here to help you get a handle on how things work here so that you can stay connected and support your loved one behind bars.

The Custer Co Jail is a detention center located at 1010 Main St Miles City, MT which is operated locally by the Custer County Sheriff's Office and holds inmates awaiting trial or sentencing or both. Most of the sentenced inmates are here for less than two years. Custer County accepts inmates from surrounding towns, Miles City Police Department, and the US Marshal's Service.

New detainees arrive at the jail regularly, with some being released on bail, placed under pretrial services caseloads, supervised by probation agencies, or released on recognizance with a court appearance agreement. Those who are not released await their court appearances at the jail, receiving accommodations including bedding and meals. You can see all the arrest records for Montana here.

The Detention Center is located behind the Custer County Courthouse. The Detention Center will not accept personal items for an inmate. Money (cash or debit/credit card) can be deposited directly using the kiosk in the main lobby for the inmate’s commissary account while they are in this facility.

Money can also be deposited online by going to *You will need to create an account. After your account is created select: Montana, Custer County Sheriff. From there you can select the inmate and add money ($300.00 weekly limit). You can also pay bail online at the following link: Bail Payments You will need to know the inmate’s agency number and bond amount.

Serving Time

Persons ordered to serve jail time by the city or justice court can report at 9 am, 12 pm, and 6 pm only. Intoxicated persons will be refused. Bring any valid prescription medication with you. Call ahead with any questions at (406) 874-3301.

Release Times

Inmates are released at 8 am,11 am,3 pm, and 9 pm daily only

When Is Court?

Generally, the Detention Center does not receive advance notice of court dates. Inmates are transported as a judge requests them. To find out when an inmate has a court appearance please call the following offices: For City of Miles City court 234-5939, for Justice Court 874-3408, for District Court contact the County Attorney’s office at 874-3310.

Inmate Locator

To utilize the Inmate Search page on InmateAid, begin by selecting the relevant prison facility in Montana. This allows you to view the current list of inmates housed at Custer County MT Jail.

The second section features the InmateAid Inmate Search tool, providing a user-generated database of inmates. You can access this resource to utilize any of InmateAid's services. If you require assistance in creating an inmate profile to maintain communication, please contact us at, and we'll gladly help you locate your loved one.

As a last resort, you might have to pay for that information if we do not have it. The Arrest Record Search will cost you a small amount, but their data is the freshest available and for that reason, they charge to access it.

Visitation Information

Custer County Detention Center - Visitation

Video Visitation is now available

You can visit via video terminal from our lobby for free or from anywhere for a small fee - to sign up.

You MUST schedule the appointment in advance and be approved so please allow time for that.

Each inmate will get one free visit from the lobby per week, after that, rates apply.

Video visiting

  • Every day from 8 am to 9:45 pm.
  • Visitation is not allowed from 12:00 pm to 1:00 pm & 7:00 pm to 8:00 pm.
  • The twice-weekly in-person visiting (Tuesdays & Saturdays from 1 pm to 4 pm) will end after May 5th,2018.

Ask The Inmate

Ask a former inmate questions at no charge. The inmate answering has spent considerable time in the federal prison system, state and county jails, and in a prison that was run by the private prison entity CCA. Ask your question or browse previous questions in response to comments or further questions of members of the InmateAid community.