MD · St. Mary's County

How to find someone in jail in St. Mary's County, Maryland

Call St. Mary's County Detention Center (extension 3200): 301-475-4200 ext. 3200

Use official custody resources for St. Mary's County and confirm the housing location with the responsible agency. The dated facility dataset below is a reference, not confirmation that a person is held there.

County facilities listed: 1
State locator: Maryland DPSCS Incarcerated Individual Locator
Service coverage: Participating agencies; verify scope
Jurisdiction: St. Mary's County, MD

Which system is holding them?

There is no single search that covers everyone in St. Mary's County. Match the situation to the right official locator — most families start with the first one.

If the arrest was recent

Start with the local jail

For a recent local arrest, check the arresting jurisdiction’s official jail roster or custody-notification service. Housing may be at a municipal, county, regional, or contracted facility. If no record appears, ask the arresting agency or jail how to confirm the booking; do not infer the destination from distance or a facility listing.

Officially published Detention Center line (ext. 3200 listed); local county detention assistance, not a public web search.

Call St. Mary's County Detention Center (extension 3200): 301-475-4200 ext. 3200

Call 301-475-4200 and enter extension 3200 for the Detention Center; ask for custody confirmation. No call was made.

No call made; very recent arrests may remain in local police custody before transfer.

Official St. Mary's County detention contact

Officially published Detention Center line (ext. 3200 listed); local county detention assistance, not a public web search.

Call 301-475-4200 and enter extension 3200 for the Detention Center; ask for custody confirmation. No call was made.

Search Maryland participating-agency custody — VINE states DPSCS is its data source; does not establish complete county coverage

Local source reviewed 2026-10-05. This is published phone assistance; the number was not called.

If nothing appears, contact the arresting agency or the responsible jail to ask how to confirm booking. A missing record does not prove release, and an agency may limit what it can disclose.

If they were sentenced to prison

Use the correctional locator

For a state-prison sentence, use the Maryland correctional locator. A short jail sentence may still be served in a local or regional jail. A sentence alone does not establish the housing location; confirm with the responsible agency.

DPSCS DOC/Patuxent and some short-sentenced DPDS prisoners; not everyone in custody

Open Maryland custody search

First and last name fields; no ID-number field observed

Official agency instructions and assistance

Reviewed 2026-10-05. Search controls reached; individual results not tested.

If the charge is federal

Search the Federal Bureau of Prisons

A federal charge does not tell you which building holds the person. The U.S. Marshals Service is responsible for federal pretrial detention and may use local, state, private, or federal facilities. Check the Federal Bureau of Prisons locator, but a missing result does not establish that the person is not detained. For a recent federal arrest, contact the arresting agency or the relevant U.S. Marshals district office to ask about the appropriate custody-information process. USMS is a contact route, not a public person locator, and disclosure of a location is not guaranteed.

Search the Federal BOP locator U.S. Marshals district directory

St. Mary's County jails & facilities 1

A listing does not establish that a person is held here. Use the responsible agency’s official locator or contact page to confirm custody.

No current facility contact has been independently verified for this guide. Start with the custody paths below or ask the arresting agency; do not travel or pay based on a historical listing.

Historical facility dataset (1 entries; current status unverified or no longer active)

These entries preserve dated source information. Addresses, phone numbers, types, and websites may be obsolete. They are not current recommendations; use official custody resources below.

County jail

ST. MARY'S COUNTY DETENTION CENTER

Address: 41880 BALDRIDGE ST, LEONARDTOWN, MD 20650
Phone: (301) 475-4200
Rated capacity: 245 beds

Facility info as of 2024-08-06. Historical dataset entry — current status unverified. (this listing may be out of date — it is not a confirmed current detention destination)

Other kinds of custody

Immigration detention has a separate official ICE detainee locator. It does not search for people under 18, and a missing result does not prove release; use the official ICE field-office contacts. Search by A-number and country of birth, or the name/country/date-of-birth information requested by the service. Access and disclosure can be restricted.

Juvenile and tribal custody may have different agencies, privacy rules, and search limits. This guide does not provide a comprehensive juvenile or tribal locator. Contact the arresting agency or responsible juvenile or tribal authority to confirm the correct process.

For federal pretrial detention, use the U.S. Marshals district directory. Federal responsibility can include housing in a local jail.

Nearby counties in Maryland

If the arrest happened just across a county line, these Maryland counties are geographic navigation aids. Open a guide for official custody resources; these links do not establish detention or transport destinations.

If you need to bail them out in Maryland

Finding the person comes first. Once you know where they are being held, this is how getting them out works in Maryland.

Commercial bail available

Release depends on the court’s order. A payment is not required in every case. Ask the court which secured-bond options, if any, are permitted; a private commercial bond service has separate fees and conditions. Confirm the process before paying anyone.

The person’s rights. The person in custody has the right to talk to a lawyer about their case, and if they cannot afford one, the court can appoint a public defender.

If there is also a warrant to deal with

Two companion guides pick up where this one leaves off — checking for a warrant, and resolving it on your own terms.

Check for a warrant in Maryland Worried the person has an open warrant too? Check first, state by state. Resolve a warrant in Maryland If they need to resolve a warrant, this walks through turning yourself in calmly.

Common questions about finding someone in St. Mary's County

How do I find someone who was just arrested in St. Mary's County?

How do I find someone in state prison from St. Mary's County?

Is there a free way to check if someone is in custody in Maryland?

Public custody searches are free. VINE states DPSCS is its data source; does not establish complete county coverage Check whether the responsible local agency participates. Use its contact when the service is unavailable; a missing record does not establish release.

How does bail work for someone held in St. Mary's County?

Ask the court or responsible jail for the release order and permitted options. Court deposits and private service fees are different, conditions vary, and payment does not guarantee release.

More of Maryland

This is one of Maryland’s counties. The state guide has the complete rundown and every other county.

All of Maryland — custody resources & county guides