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 24, 2026 and October 9, 2026.
Marshall County, Kentucky, has about 32,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Marshall County is held at the county jail, run by the Marshall 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, state prison and common questions.
Related guides: Marshall County public records, Marshall County arrest records, Marshall County warrants, Marshall County criminal records, Marshall County court records, Kentucky arrest records and Kentucky inmate search.
Finding Someone in Custody in Marshall County
The county jail, run by the Marshall County Sheriff's Office, holds everyone kept in custody after an arrest in Marshall County, from every agency.
SearchSystems opened and checked the custody page of the Marshall County Sheriff's Office at sheriffmarshallcounty.org/current-inmate-roster (page title: Private Site), which answered when SearchSystems opened it on October 9, 2026.
That page is the place to look for someone booked recently. A person cited and released at the scene, or held only a few hours by a city department, will not be on it.
The Marshall County Jail by the Numbers
So far in 2026 the jail has held about 100 people on an average day, down from about 250 in 2019. Its rated capacity is 204 beds, and it is running at 50 percent of it. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Marshall County has about 32,000 residents (2024 Census Bureau estimate), so the jail holds about 32 people for every 10,000 residents.
Who Books People Into the Marshall County Jail
The Marshall County Sheriff's Office and the agencies that report for Benton and Calvert City make the arrests that end in a booking in Marshall County.
The largest arrest counts reported to the FBI were the Marshall County Sheriff's Office's 606 for 2025, Calvert City's 136 for 2025 and Benton's 133 for 2025.
Together, the three agencies in Marshall County with all twelve months of 2025 on file reported 875 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 Marshall County arrest records.
From the Jail to State Prison
A sentence of more than a year is served in state prison, not the jail; the Kentucky Department of Corrections lists its inmates at kool.corrections.ky.gov/.
Frequently Asked Questions
How do I find an inmate in Marshall County?
Look on the custody page of the Marshall County Sheriff's Office at sheriffmarshallcounty.org. It covers people booked into the county jail.
How many people are in the Marshall County jail?
About 100 on an average day so far in 2026, against a rated capacity of 204 beds.
Where do people sentenced to prison in Marshall County go?
To a facility of the Kentucky Department of Corrections; its inmate locator is at kool.corrections.ky.gov/.
Is this the official Marshall County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.