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Calvert County Detention Center
Find the contact details, address, facility type, and official source links Jail411 holds for Calvert County Detention Center in Maryland. Confirm current custody before acting.
Facility record / Maryland
Calvert County Detention Center is a county or city jail in Prince Frederick, Calvert County, Maryland. It has a rated capacity of 228 and a reported population of 199 — about 87% occupancy, as recorded in the February 2026 federal dataset. By capacity it is the 17th-largest of the 26 county or city jail records listed for Maryland with a published capacity.
Jail411 does not hold custody records. A listing here does not mean anyone is held at this address. Confirm the person’s location with the responsible agency before you travel, send money, or pay for a service.
Where this record came from. The contact, status and security fields, with capacity and population, come from the HIFLD and Federal Bureau of Prisons directory release refreshed February 2026. They describe the record, not today’s population. Check the facility’s current official website.
Contact this facility
- Phone
- (410) 535-4300
- Address
- 325 Stafford Rd
Prince Frederick, MD 20678Open in maps - Official page
- Official page at co.cal.md.us
- County
- Calvert County
Facility details
Capacity
199 people in a facility designed for 228
As of the February 2026 federal dataset.
Listed as open in the February 2026 directory release.
Finding someone held here
Use the county system for a recent arrest. A state corrections search covers people in state custody. It generally will not list someone booked into a county jail this week. Bookings, bail, release, and visiting are all handled by Calvert County Sheriff’s Office.
Official site for this facility →
Call this facility directly: (410) 535-4300
Before you travel, pay, or mail anything
Get two things first: which facility the person is actually in, and their booking or ID number. Almost nothing works without them. Then check this facility’s current instructions — rules and service providers change.
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Can Jail411 tell me if someone is in custody right now?
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Does posting bond mean the person comes home?
Not always. A probation or parole hold, another county's warrant or an immigration detainer can keep someone in custody after bond is posted. Ask the jail what holds are on the booking before you pay.
What should I confirm before visiting?
The person's current facility, the visiting schedule, approval requirements, accepted identification and arrival instructions. Check the facility page and its official sources before you travel.
What if I find something that needs correcting?
Send us the page and the detail that needs attention. Include the official source when you have one. Do not send private booking documents or other sensitive personal information.
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