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 on September 24, 2026.
Sheridan County, Montana, has about 3,400 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Sheridan County is held at the county jail, run by the Sheridan 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: Sheridan County public records, Sheridan County arrest records, Sheridan County warrants, Sheridan County criminal records, Sheridan County court records, Montana arrest records and Montana inmate search.
Finding Someone in Custody in Sheridan County
The county jail, run by the Sheridan County Sheriff's Office, holds everyone kept in custody after an arrest in Sheridan County, from every agency.
SearchSystems opened and checked the jail page of the Sheridan County Sheriff's Office at sheridancountymt.gov/sheriff (page title: Sheridan County Montana | Sheriff), which answered when SearchSystems opened it on September 24, 2026.
That page is the office's jail information page rather than a roster.
The Sheridan County Jail by the Numbers
On an average day in 2019 the jail held about 1 people. Its rated capacity in 2019 was 12 beds, and it ran at 8 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Sheridan County has about 3,400 residents (2024 Census Bureau estimate), so the jail holds about 3 people for every 10,000 residents.
Who Books People Into the Sheridan County Jail
The Sheridan County Sheriff's Office makes the arrests that end in a booking in Sheridan County.
The Sheridan County Sheriff's Office reported 56 arrests to the FBI for 2025. 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 Sheridan 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 Sheridan County serves the sentence in a facility of the Montana Department of Corrections, whose inmate locator is at offendersearch.mt.gov/conweb.
Frequently Asked Questions
How do I find an inmate in Sheridan County?
Ask the Sheridan County Sheriff's Office; its jail page SearchSystems verified is at sheridancountymt.gov/sheriff.
How many people are in the Sheridan County jail?
About 1 on an average day in 2019, the latest year in the Vera Institute's jail data, against a rated capacity of 12 beds.
Where do people sentenced to prison in Sheridan County go?
To a facility of the Montana Department of Corrections; its inmate locator is at offendersearch.mt.gov/conweb.
Is this the official Sheridan 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.