Mahnomen County Jail
Mahnomen County Jail
County Jail / Adult Detention FacilityMailing Address
[Inmate / Resident Full Name]
Mahnomen County Jail
311 N. Main Street, Mahnomen, MN 56557
Mahnomen County Jail
311 N. Main Street, Mahnomen, MN 56557
Physical Address
311 N. Main Street, Mahnomen, MN 56557
Governing Agency
Mahnomen 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 a complete sender return address. Verify current Mahnomen County Jail correspondence rules before mailing.
Last verified: September 27, 2026
Verify current facility photo size, quantity and content restrictions before sending photographs.
Last verified: September 27, 2026
Verify current facility book, publication and package rules before sending.
Last verified: September 27, 2026
Do not mail cash unless explicitly permitted. Use the facility's current approved inmate-account deposit method.
Last verified: September 27, 2026
Verify current visitation approval, identification and scheduling requirements before travel.
Last verified: September 27, 2026
How to Address Your Letter
Use the inmate's full legal name and a complete sender return address. Verify current Mahnomen County Jail correspondence rules before mailing.
About Mahnomen County Jail
Mahnomen County Jail is a Minnesota county, regional or juvenile correctional facility record reviewed for current status and mail routing on 2026-09-27.