Jail Administration

  • Jail Commander
  • Eric Rykal
  • erykal@jeffersoncounty-mt.gov
  • Jail Sergeant
  • Sydney Macon
  • smacon@jeffersoncounty-mt.gov
  • Detention Center Phone
  • (406) 225-4091

Jefferson County Detention Center

The Jefferson County Detention Center is an adult 24 bed facility located in Boulder Montana.The Jefferson County Detention Center is responsible for the care and custody of individuals accused of a crime, convicted individuals awaiting sentencing, sentenced inmates awaiting transport and prisoners sentenced to the County Detention Center. The Jefferson County Detention Center is administered by the Sheriff of Jefferson County. It is managed by the employees under the direction of the Sheriff and the supervisor of the County Detention Center.

Visitation Hours

  • Tuesday 9am-6pm
  • Saturday 9am-6pm
  • Sunday 9am-6pm

Visitation will also be held on the following holidays from 9am-6pm: New Years Day, Memorial Day, July 4th, Labor Day, Thanksgiving Day and Christmas Day.

Inmates will recieve no more than 45 minutes of visitation on any given visitation day.

If you are a friend or family member and are traveling more than 200 miles one way for visitation please have the inmate you wish to visit, fill out a special request form for an extended visit.

Mailing Address

  • Inmate's Name
  • C/O Jefferson County Detention Center
  • P.O. Box 588
  • Boulder MT 59632

Only letters are allowed. No cards of any kind will be given to the inmate. Please mail all letters in a plain white envelope. If any watermarks or drawings are on any of the stationary, it could be returned to the sender. Family photos are allowed to be included in any letters sent. You can also send money to an inmate in the letter. (In state checks and money orders are preferred).

Inmate Phone and Canteen

As of September 2019 we have switched phone and commissary providers to TurnKey. If you would like to set up an account so your friend or family member can be in contact with you please go to www.inmatecanteen.com there you can put money onto an inmates account, purchase commissary products for an inmate for delivery, allow phone calls or inmate messaging and also get set up for video visitation( Note: Video Visitation can only be done at a desktop computer). If you are having trouble setting up an account there is a help section on the above website for you to access help or ask questions.