Helena City Jail, MT Prison Roster, Online Inmate Search

Updated on: April 18, 2024
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Helena City Jail


2550 Prospect Avenue PO Box 201419, Helena, MT, 59620


Helena City Jail inmate locator: Mugshots, Race, Loc, Court Date, Detainer Information, Arrests, Inmate List, Bond, FileNo, Bond Amount, Bookings, Offense Date, Release Date, Address, Degree Level, Who's in jail, Booking Date.

Use this website for informational purposes only.

This jail in Helena, Montana is for misdemeanor offenses. It is a regional facility that serves the needs of 6 different cities in the region. The Helena City Jail allows for in-person visitation as well as remote online visitation. If you are looking to visit the jail, the location found in most GPSs and online mapping programs is inaccurate. You should manually enter this address into your GPS:

2550 Prospect Avenue
PO Box 201419, Helena, MT, 59620

This site is not owned or operated by any state government agency, read more.

Helena City Jail — General Information

Facility Name Helena City Jail
Facility Type City Jail
Address 2550 Prospect Avenue PO Box 201419, Helena, MT, 59620
Phone 406-444-3780
City Helena
Postal Code 59620
State Montana
County Lewis and Clark County
Official Website https://doj.mt.gov/highwaypatrol/

Inmate Search

Nationwide Inmate Search

Arrests, Warrant, Docket, Mugshot.

You can do a lookup online for inmates. You can also call 406-444-3780 if you have any questions when you are searching for an inmate.

Sending a Mail/Care Package

Send mail to inmates at this address:

(Inmate’s Full Name and Name Number)

Helena City Jail

2550 Prospect Avenue PO Box 201419, Helena, MT, 59620

You can send letters, softback books, magazines, and newspapers. You can also ship photographs, and inmates can hold on to up to 6 pictures at one time.

Sending Money

Do not send any money, checks, or money orders through the mail. Using a system called TouchPay, you can add money to an inmate’s commissary account. This will allow the inmate to purchase hygiene products and snacks. You can add money at the kiosk in the jail’s lobby, via phone at 406-444-3780, or online. Inmates can also use this money to set up their telephone account so they can make phone calls.

Phone calls

You can establish a telephone account for an inmate at Helena City Jail. There is a system, which allows you to advance pay for inmate’s phone calls, so they will not have to call collect. An inmate can also pay for phone calls using his commissary account. Inmates are not allowed to receive incoming calls, so you should set up a plan for the inmate to call you.


Schedule your visit ahead of time online. All visits should be set up online, and you can call 406-444-3780, if you need help setting up your online visitation request. You can visit online remotely for up to 10 minutes at a time, and can schedule anytime during these time slot: Tuesday through Sunday. You can also schedule a visit to occur in the lobby of the jail. These visits can be scheduled for between 2:00PM and 4:00PM on Tuesdays through Fridays.

Visiting Hours

Monday — 9:00 AM to 6:00 PM
Tuesday — 9:00 AM to 6:00 PM
Wednesday — 9:00 AM to 6:00 PM
Thursday — 9:00 AM to 6:00 PM
Friday — 9:00 AM to 6:00 PM
Saturday — 9:00 AM to 6:00 PM
Sunday — 9:00 AM to 6:00 PM


Refer the map below to find the driving directions.

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