Detention Center

Effective at 2100 hours on Sunday, April 5, 2020, the Detention Center lobby will be closed to visitors until further notice.  If you need to deposit money into an inmate’s commissary account, please mail a money order with your name and address on it. Money orders will only be received through the mail.  Mail all money orders to: 

PO Box 9    Barstow, MD  20610

Visitation to the detention center is cancelled until further notice to prevent the spread of Coronavirus Disease 2019 (COVID-19). The county continues to share the latest updates surrounding Calvert County’s response to COVID-19 through a virtual resource center on its website, including any precautionary measures, guidance and closures at


The detention center is responsible for detaining pre-trial suspected offenders, to adequately assure their appearance at trial or other judicial proceedings, and to hold those offenders serving short-term sentences until legally released. The detention center takes the necessary steps to securely maintain custody of those offenders in compliance with all applicable federal, state, and county statutes and standards.


Program services are provided for both male and female offenders. In-house programs, complemented by community volunteers, assist in addressing the needs of those requiring counseling. Educational programs are provided based on the inmate’s ability and need to enter the program.


The facility is located on Stafford Road Barstow. The phone number is 410-535-4300 or 301-855-9640. The fax number is 410-535-4537. The Detention Center is manned 24 hours a day, seven days a week.