Charles County Detention Center Annex
Charles County Detention Center Annex
County Detention Center Annex / Auxiliary RecordMailing Address
[Inmate Full Legal / Booked Name] — [Inmate ID if known]
Charles County Detention Center Annex
P.O. Box 189, La Plata, MD 20646
Charles County Detention Center Annex
P.O. Box 189, La Plata, MD 20646
Physical Address
6905 Crain Highway, La Plata, MD 20646
Governing Agency
Charles County Sheriff's Office
Inmate ID
Inmate / Booking Number — Not required
Last Verified
September 27, 2026
Facility Mailing and Service Information
Verify the person is currently housed at Charles County Detention Center Annex before mailing. Use the inmate's full legal/booked name and ID when known. Mail to P.O. Box 189, La Plata, MD 20646 and include a complete sender return address.
Last verified: September 27, 2026
Confirm current photo size, quantity and content rules before mailing.
Last verified: September 27, 2026
Confirm current direct-publisher/vendor rules before ordering books or periodicals.
Last verified: September 27, 2026
Use the facility's approved inmate-account deposit procedure.
Last verified: September 27, 2026
Verify current custody/placement, visitor approval requirements and current visitation rules before traveling.
Last verified: September 27, 2026
How to Address Your Letter
Verify the person is currently housed at Charles County Detention Center Annex before mailing. Use the inmate's full legal/booked name and ID when known. Mail to P.O. Box 189, La Plata, MD 20646 and include a complete sender return address.
About Charles County Detention Center Annex
Charles County Detention Center Annex is a Maryland county, juvenile, corrections or auxiliary facility record reviewed for current status and mail routing on 2026-09-27.