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Lockbox FAQs

  • What is the Lockbox?
    • The Lockbox is a post office box for receiving inmate money orders for some Maryland State correctional institutions.
  • What correctional institutions use the Lockbox?
    • Patuxent Institution; Baltimore City Correctional Center; Baltimore Pre-Release Unit; Central Maryland Correctional Facility; Metropolitan Transition Center; Maryland  Reception, Diagnostic and Classification Center; Chesapeake Detention Facility; Dorsey Run Correctional Facility; Eastern Pre-Release Unit;  Brockbridge Correctional Facility; Southern Maryland Pre-release Unit; Maryland Correctional Institution for Women; Maryland Correctional Institution-Jessup; Jessup Correctional Institution.
  • What information is required on the money order?
    • The inmate’s name, institution and SID number.
  • Who should the money order be made payable to?
    • Money orders should be made payable to the inmate.
  • What is the address to send money orders for Lockbox institutions?
    • P.O. Box 17111, Baltimore, MD 21297-1111
  • Will the Lockbox accept other items, such as letters, etc.?
    • No, the Lockbox only accepts money orders. Please do not send cards or letters to the Lockbox. Cards and letters must be sent to the institution where the inmate is housed.
  • How long does it take for funds to be deposited to an account?
    • On average, if money orders are completed correctly, it takes five business days to process money orders.  If money orders are completed incorrectly, they will be returned.
  • Are holds placed on money orders?
    • Yes, money orders over $250.00 are held for 30 days.
  • Will the inmate receive a receipt?
    • Yes.
  • Where should I send a money order if the inmate is not located at one of the Lockbox institutions?
    • Please send money orders directly to the institution where the inmate is located.    Institutional information can be obtained at The “Details/Visiting” section of the institution contains the address in the upper right.

Please call 410-540-6221/5712 for money order questions and have the following information readily available:

  • money order number
  • amount of the money order
  • inmate’s name
  • inmate’s SID number
  • inmate’s institution