Main jail

Jefferson County Criminal Justice

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

Facilities in Jefferson County

Addresses, phone numbers and capacity come from a public facility directory and can be out of date. Call before you travel or send anything.

Find someone in Jefferson County

Read the full guide to finding someone in jail.

  1. CallJefferson County Criminal Justice: (406) 225-4091; Elkhorn Treatment Center: (406) 447-5300; Riverside Recovery & Reentry Program: (406) 225-4500. Have the person's full name and date of birth ready; booking can take several hours.

Questions about Jefferson County jail and inmate search

Where do people arrested in Jefferson County go?

Most people arrested in Jefferson County, Montana are booked into Jefferson County Criminal Justice at 110 S Washington St, Boulder. Its phone number is (406) 225-4091.

What phone numbers do we list for Jefferson County jails and facilities?

Jefferson County Criminal Justice: (406) 225-4091. Elkhorn Treatment Center: (406) 447-5300. Riverside Recovery & Reentry Program: (406) 225-4500. These come from a public facility directory and can change, so confirm a number before you rely on it.

How do I find out if someone is in jail in Jefferson County?

Call (406) 225-4091 with the person's full name and date of birth.

What county jails are near Jefferson County?

The closest county jails we list outside Jefferson County are Lewis & Clark County Detention Center in Helena (Lewis and Clark County, about 25 miles), Butte Silver Bow Detention Facility in Butte (Silver Bow County, about 25 miles) and Broadwater County Detention Center in Townsend (Broadwater County, about 29 miles). Distances are straight-line miles between listed facilities, not driving distances.

How many people can the Jefferson County Criminal Justice hold?

The facility directory lists a capacity of 24 beds for Jefferson County Criminal Justice.