Tri-County Regional Jail
Tri-County Regional Jail
County Jail / Detention / Justice CenterMailing Address
4099 State Route 559, Mechanicsburg, Ohio 43044
Physical Address
4099 State Route 559, Mechanicsburg, Ohio 43044
Governing Agency
Ohio local County Sheriff's Office / local corrections authority
Inmate ID
Booking / Inmate ID Number — Required
Last Verified
October 1, 2026
Facility Mailing and Service Information
Incoming personal correspondence is subject to security screening. Use plain correspondence and the correct inmate identifier; legal/privileged mail follows separate procedures.
Last verified: October 1, 2026
Photographs may be scanned or physically delivered depending on the jail. Confirm current size, quantity and content restrictions before sending.
Last verified: October 1, 2026
Books, magazines and packages are handled separately from ordinary personal mail and may require direct shipment from an approved publisher or retailer. Confirm current rules before ordering.
Last verified: October 1, 2026
Do not place cash or personal checks in ordinary inmate correspondence. Use the jail's current approved inmate-account or commissary deposit method.
Last verified: October 1, 2026
Confirm the inmate's current housing, visitor approval requirements, identification rules and current onsite/video visitation schedule before travel.
Last verified: October 1, 2026
How to Address Your Letter
Use the inmate's full booked/legal name and booking or inmate ID number and include the sender's complete return address. Verify the jail's current ordinary-mail routing before sending, because county procedures can change.
About Tri-County Regional Jail
Tri-County Regional Jail is an Ohio county or regional detention facility. Verify the inmate's current booking status, identifier and current mail-routing rules before sending correspondence.