Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. Every office link was opened and checked against the office's own site between September 23, 2026 and October 9, 2026.
Brunswick, Maryland, in Frederick County, has about 9,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Brunswick is held at the county jail, run by the Frederick County Sheriff's Office, and the jail's record of each person held is a public record. This guide says where to look for someone in custody, what the jail holds and who books people into it.
This guide covers the search, the jail, who books people and common questions.
Related guides: Brunswick public records, Frederick County inmate search, Brunswick arrest records, Brunswick warrants, Brunswick criminal records, Brunswick court records, Maryland arrest records and Maryland inmate search.
Finding Someone in Custody in Brunswick
A person kept in custody after an arrest in Brunswick is held at the county jail, run by the Frederick County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Frederick County Sheriff's Office at frederickcountymd.gov/677/Sheriff-Adult-Detention?NID=677 (page title: Sheriff 's Office | Frederick County MD), 110 Airport Drive East Frederick, MD 21701, which answered when SearchSystems opened it on September 23, 2026.
That page is the office's jail information page rather than a roster.
The Frederick County Jail by the Numbers
On an average day in 2024 the jail held about 280 people, down from about 300 in 2019. Its rated capacity in 2023, the last year with a capacity figure, was 412 beds, and it ran at 75 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Frederick County has about 299,000 residents (2024 Census Bureau estimate), so the jail holds about 9 people for every 10,000 residents.
Who Books People Into the Frederick County Jail
The Frederick County Sheriff's Office and the agency that reports for Brunswick (filed by the FBI as Brunswick Police Department) make the arrests that end in a booking in and around Brunswick.
The FBI's agency list also places one more agency in Frederick County: the Frederick County State Police (state police).
The Mount Airy Police Department is listed by the FBI across two counties including Frederick County, so its arrests are not broken out for Frederick County here.
The largest arrest counts reported to the FBI were the Frederick County Sheriff's Office's 2,672 for 2025, Frederick's 2,510 for 2025 and Thurmont's 43 for 2025.
Together, the four agencies in Frederick County with all twelve months of 2025 on file reported 5,255 arrests to the FBI that year. Those kept in custody were booked into the county jail; a person cited and released at the scene was not.
The counts, agency by agency and year by year, are in Brunswick arrest records.
Frequently Asked Questions
How do I find an inmate in Brunswick?
Ask the Frederick County Sheriff's Office; its jail page SearchSystems verified is at frederickcountymd.gov.
How many people are in the Frederick County jail?
About 280 on an average day in 2024, the latest year in the Vera Institute's jail data, against a rated capacity of 412 beds.
Is this the official Brunswick website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.