Marion County Detention Center
Marion County Detention Center
County / Regional Detention CenterMailing Address
[Inmate / Resident Full Name] — [ID if known]
Marion County Detention Center
P.O. Box 2925, PMB 79078, San Antonio, TX 78299-2925
Marion County Detention Center
P.O. Box 2925, PMB 79078, San Antonio, TX 78299-2925
Physical Address
2715 E. Highway 76, Mullins, SC 29574
Governing Agency
Marion County Sheriff's Office
Inmate ID
Inmate / Booking ID — Not required
Last Verified
September 28, 2026
Facility Mailing and Service Information
Use the incarcerated person's full legal name and identification number if known. Include a complete sender return address and verify current Marion County Detention Center correspondence rules before mailing.
Last verified: September 28, 2026
Verify current photo size, quantity and content restrictions before sending photographs.
Last verified: September 28, 2026
Verify current book, publication and package rules before sending.
Last verified: September 28, 2026
Do not send cash unless explicitly permitted. Use the facility's approved account-deposit method.
Last verified: September 28, 2026
Verify current visitor approval, identification and scheduling requirements before travel.
Last verified: September 28, 2026
How to Address Your Letter
Use the incarcerated person's full legal name and identification number if known. Include a complete sender return address and verify current Marion County Detention Center correspondence rules before mailing.
About Marion County Detention Center
Marion County Detention Center is a South Carolina county or regional detention facility record reviewed on 2026-09-28.