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 September 24, 2026.
Jack County, Texas, has about 9,400 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Jack County is held at the county jail, run by the Jack 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: Jack County public records, Jack County arrest records, Jack County warrants, Jack County police reports, Jack County property records, Texas arrest records and Texas inmate search.
Finding Someone in Custody in Jack County
The county jail, run by the Jack County Sheriff's Office, holds everyone kept in custody after an arrest in Jack County, from every agency.
SearchSystems opened and checked the jail page of the Jack County Sheriff's Office at jackcountysheriff.com/jail.html (page title: Jail), phone (940) 567-2221, which answered when SearchSystems opened it on September 23, 2026.
That page is the office's jail information page rather than a roster, so a search for a particular person goes through the office at (940) 567-2221.
The Jack County Jail by the Numbers
So far in 2026 the jail has held about 32 people on an average day, down from about 36 in 2019. Its rated capacity is 108 beds, and it is running at 30 percent of it. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Jack County has about 9,400 residents (2024 Census Bureau estimate), so the jail holds about 34 people for every 10,000 residents.
Who Books People Into the Jack County Jail
The Jack County Sheriff's Office and the agency that reports for Jacksboro make the arrests that end in a booking in Jack County.
The FBI's agency list also places one more agency in Jack County: the Jack County Constable's Precinct 1 (other agency).
The largest arrest counts reported to the FBI were Jacksboro's 72 for 2024 and the Jack County Sheriff's Office's 71 for 2025.
Together, the two agencies in Jack County with all twelve months of 2024 on file reported 107 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 Jack County 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 Jack County serves the sentence in a facility of the Texas Department of Criminal Justice, whose inmate locator is at inmate.tdcj.texas.gov/InmateSearch/start.
Frequently Asked Questions
How do I find an inmate in Jack County?
Ask the Jack County Sheriff's Office at (940) 567-2221; its jail page SearchSystems verified is at jackcountysheriff.com/jail.html.
How many people are in the Jack County jail?
About 32 on an average day so far in 2026, against a rated capacity of 108 beds.
What is the phone number for the Jack County jail?
(940) 567-2221, the number on the page of the Jack County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Jack County go?
To a facility of the Texas Department of Criminal Justice; its inmate locator is at inmate.tdcj.texas.gov/InmateSearch/start.
Is this the official Jack 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.