How to mail an inmate in Montana
To write to someone in Montana state custody, address the envelope to the inmate's full committed name and DOC ID number, then the facility’s own mailing address. Each facility has its own mailing address, listed below. Run by the Montana Department of Corrections.
The mailing address
[Inmate's full committed name] [DOC ID number] [Facility name] [Facility mailing address — see the facility page]
Replace the bracketed lines with the person's details and their facility (pick it below for the exact wording).
How Montana inmate mail works
- Not every Montana facility takes mail the same way — Montana State Prison, Montana Women's Prison, Pine Hills, and Riverside route personal mail to an out-of-state central scanning vendor, but Crossroads Correctional Center and Dawson County Correctional Facility scan mail on-site and still take letters at their own address.
- Address it to the resident's full name and DOC ID number, then the facility's own mailing address.
- Incoming personal mail is opened and scanned on-site; the resident receives the mail digitally on a tablet, not the physical original.
- Include your full name and return address on the envelope.
What you can't send
- Cash, checks, money orders, or postage stamps
- Any item other than paper (no polaroids, laminated items, or enclosures)
- Nude, sexually explicit, or contraband-promoting content
- Stickers, glitter, glue, tape, perfume, lipstick, or crayon/marker
Photos: Up to 5 photos per mailing; each must have the resident's last name and DOC ID number written on the back.
All 2 Montana facilities
Common questions
What is the mailing address for an inmate in Montana?
Address the envelope to the inmate's full committed name and DOC ID number, then the facility’s own mailing address. Use the specific facility’s mailing address, listed on its page below.
Is inmate mail in Montana opened or scanned?
Yes. Under the Montana Department of Corrections (MT DOC)'s rules, incoming personal mail is opened and scanned, and the inmate receives a copy rather than your original.
What can't I send to a Montana inmate?
Do not send: Cash, checks, money orders, or postage stamps; Any item other than paper (no polaroids, laminated items, or enclosures); Nude, sexually explicit, or contraband-promoting content; Stickers, glitter, glue, tape, perfume, lipstick, or crayon/marker. Prohibited items get the letter rejected.
How do I find which facility someone is in?
Use the Montana Department of Corrections (MT DOC)'s official inmate locator, then open that facility's page below for the exact addressing. People are transferred without notice, so confirm before mailing anything important.
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Type your letter, pick the facility, and PostPal prints and mails it via USPS — with your return address so they can write back. No printer or post office.
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