St. Mary's County Jail & Prison

Find St. Mary's County Maryland jails, prisons, detention centers, departments of corrections, and penitentaries. Jails and prisons provide information on inmate searches, rosters, lookups, lists, records, and mugshot photos.


Leonardtown Prison 11 COURTHOUSE Dr Leonardtown MD 20650 301-475-2467


St Mary's County Detention Center 41880 Baldridge Street Leonardtown MD 20650 301-475-4200

Jails & Prisons by City

Do Prison inmates work?

Federal Prison inmates and some State Prison inmates are required to work unless they have a medical restriction. Inmates who are participating in educational or treatment programs, or inmates who are considered a security risk, may receive an exemption from work requirements.

How can victims of a crime learn when an inmate is being released?

Most states have a Victim Services Unit or similar agency that can provide information on the release of inmates. In some cases, a petitioner may also be notified of parole hearings.

What is Good Conduct Time?

Good Conduct Time refers to time that can be deducted from an inmate's sentence as a result of good behavior. Though the actual formula for calculating Good Conduct Time is complex, a commonly used rule of thumb is that a year of good behavior can reduce a sentence by roughly 54 days.