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 4, 2026.
Gallatin, Tennessee, in Sumner County, has about 52,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Gallatin is held at the county jail, run by the Sumner 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: Gallatin public records, Sumner County inmate search, Gallatin arrest records, Gallatin warrants, Gallatin criminal records, Gallatin court records, Tennessee arrest records and Tennessee inmate search.
Finding Someone in Custody in Gallatin
The county jail, run by the Sumner County Sheriff's Office, holds everyone kept in custody after an arrest in Gallatin, from every agency.
SearchSystems opened and checked the jail page of the Sumner County Sheriff's Office at sumnersherifftn.gov/inmates (page title: Inmates | Sumner County Sheriff's Office, TN), which answered when SearchSystems opened it on October 4, 2026.
That page is the office's jail information page rather than a roster.
The Sumner County Jail by the Numbers
On an average day in 2024 the jail held about 760 people, down from about 870 in 2019. Its rated capacity in 2024 was 956 beds, and it ran at 79 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Sumner County has about 212,000 residents (2024 Census Bureau estimate), so the jail holds about 36 people for every 10,000 residents.
Who Books People Into the Sumner County Jail
The Sumner County Sheriff's Office and the agency that reports for Gallatin (filed by the FBI as Gallatin Police Department) make the arrests that end in a booking in and around Gallatin.
The FBI's agency list also places these agencies in Sumner County: Drug Task Force's 18th Judicial District (other agency); Volunteer State Community College (campus police).
The Goodlettsville Police Department is listed by the FBI across two counties including Sumner County, so its arrests are not broken out for Sumner County here.
The largest arrest counts reported to the FBI were the Sumner County Sheriff's Office's 3,377 for 2025, Gallatin's 1,831 for 2025 and Hendersonville's 1,149 for 2025.
Together, the seven agencies in Sumner County with all twelve months of 2025 on file reported 7,310 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 Gallatin arrest records.
From the Jail to State Prison
The jail holds people awaiting trial and people serving short sentences. A person sentenced to prison in Sumner County serves the sentence in a facility of the Tennessee Department of Correction, whose inmate locator is at foil.app.tn.gov/foil/search.jsp.
Frequently Asked Questions
How do I find an inmate in Gallatin?
Ask the Sumner County Sheriff's Office; its jail page SearchSystems verified is at sumnersherifftn.gov/inmates.
How many people are in the Sumner County jail?
About 760 on an average day in 2024, the latest year in the Vera Institute's jail data, against a rated capacity of 956 beds.
Where do people sentenced to prison in Sumner County go?
To a facility of the Tennessee Department of Correction; its inmate locator is at foil.app.tn.gov/foil/search.jsp.
Is this the official Gallatin 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.