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County in Montana

Jefferson County jail and inmate search

People arrested in Jefferson County, Montana are usually booked into Jefferson County Criminal Justice. We list 3 facilities in this county.

Main jail

Jefferson County Criminal Justice

County jail 110 S Washington St, Boulder, MT, 59632

Visiting, calls, money and bail Call (406) 225-4091

Facilities in Jefferson County

How to look someone up in Jefferson County

  1. Search the nameUse the search box at the top of this page. We may not have a roster for this county yet.
  2. Check the sheriff's websiteLook for an inmate lookup or roster.
  3. Call the jailCall (406) 225-4091 with the person's full name and date of birth. Staff can usually confirm custody, charges and bail.
  4. Try again laterIf they are not listed yet, check back. Booking can take several hours.

Read the full guide to finding someone in jail.