Pennington County Jail
Pennington County Jail
County Jail / Adult Detention FacilityMailing Address
[Inmate / Resident Full Name]
Pennington County Jail
102 1st Street W, Thief River Falls, MN 56701
Pennington County Jail
102 1st Street W, Thief River Falls, MN 56701
Physical Address
102 1st Street W, Thief River Falls, MN 56701
Governing Agency
Pennington 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 Pennington 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 Pennington County Jail correspondence rules before mailing.
About Pennington County Jail
Pennington County Jail is a Minnesota county, regional or juvenile correctional facility record reviewed for current status and mail routing on 2026-09-27.