Jefferson County MT Jail

Jefferson County MT Jail basic information to help guide you through what you can do for your inmate while they are incarcerated. The facility's direct contact number: 406-225-4075 This facility is for adult inmates. The Jefferson County MT Jail is a medium-security detention center located at 110 South Washington PO Box 588 in Boulder, MT. This county jail is operated locally by the Jefferson County Sheriff's Office and holds inmates awaiting trial or sentencing. Most of the sentenced inmates are here for less than two years. Jefferson County accepts inmates from surrounding towns, municipalities, the US Marshal's Service and the Boulder Police Department who do not have their own long-term lock-up..

Jefferson County MT Jail Contact Details

Address: 110 South Washington, PO Box 588, Jefferson, MT
City: Boulder
Zip: 59632
Phone 1: 406-225-4075
Type: County Jail

Mailing to Inmates and Staff

Inmate Visiting Days and Hours

Day of Week Hours
Tuesday 9:00 am to 6:00 pm
Saturday 9:00 am to 6:00 pm
Sunday 9:00 am to 6:00 pm