Hancock County Jail
Hancock County Jail
County Jail / Adult Detention FacilityMailing Address
[Inmate / Resident Full Name]
Hancock County Jail
8450 Highway 90, Bay St. Louis, MS 39520
Hancock County Jail
8450 Highway 90, Bay St. Louis, MS 39520
Physical Address
8450 Highway 90, Bay St. Louis, MS 39520
Governing Agency
Hancock County Sheriff's Office
Inmate ID
Inmate / Booking ID — Not required
Last Verified
September 27, 2026
Facility Mailing and Service Information
Use the incarcerated person's full legal name and a complete sender return address. Verify current Hancock County Jail mail rules before sending correspondence.
Last verified: September 27, 2026
Verify current photo size, quantity and content restrictions before sending photographs.
Last verified: September 27, 2026
Verify current 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 visitor approval, identification and scheduling requirements before travel.
Last verified: September 27, 2026
How to Address Your Letter
Use the incarcerated person's full legal name and a complete sender return address. Verify current Hancock County Jail mail rules before sending correspondence.
About Hancock County Jail
Hancock County Jail is a Mississippi correctional or custody-related facility record reviewed for current status and mail routing on 2026-09-27.