Yellowstone County Detention Facility
Yellowstone County Detention Facility
County Jail / Adult Detention FacilityMailing Address
[Inmate / Resident Full Name]
Yellowstone County Detention Facility
3165 King Avenue E, Billings, MT 59107
Yellowstone County Detention Facility
3165 King Avenue E, Billings, MT 59107
Physical Address
3165 King Avenue E, Billings, MT 59107
Phone
Governing Agency
Yellowstone County Sheriff's Office
Inmate ID
Inmate / Booking ID — Not required
Last Verified
September 27, 2026
Facility Mailing and Service Information
Use the inmate's full legal name and the current Yellowstone County Detention Facility address at 3165 King Avenue E, Billings, MT 59107. Legal mail is sent directly to the facility and must be clearly marked LEGAL MAIL.
Source: Official sourceLast verified: September 27, 2026
Photos must comply with Yellowstone County content/security restrictions. Verify the current facility rules before mailing.
Source: Official sourceLast verified: September 27, 2026
Verify current book, publication and package rules before sending.
Source: Official sourceLast verified: September 27, 2026
Do not mail cash unless explicitly permitted. Use the facility's current approved inmate-account deposit method.
Source: Official sourceLast verified: September 27, 2026
Yellowstone County provides electronic video visitation; verify current scheduling and NCIC account requirements.
Source: Official sourceLast verified: September 27, 2026
How to Address Your Letter
Use the inmate's full legal name and the current Yellowstone County Detention Facility address at 3165 King Avenue E, Billings, MT 59107. Legal mail is sent directly to the facility and must be clearly marked LEGAL MAIL.
About Yellowstone County Detention Facility
Yellowstone County Detention Facility is a Montana correctional, detention or treatment-related facility record reviewed for current status and mail routing on 2026-09-27.