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 30, 2026 and October 9, 2026.
Oregon County, Missouri, has about 8,700 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Oregon County is held at the county jail, run by the Oregon 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: Oregon County public records, Oregon County arrest records, Oregon County warrants, Oregon County criminal records, Oregon County court records, Missouri arrest records and Missouri inmate search.
Finding Someone in Custody in Oregon County
A person kept in custody after an arrest in Oregon County is held at the county jail, run by the Oregon County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Oregon County Sheriff's Office at oregoncountysheriff.org/jail (page title: Jail | Oregon County Sheriff's Office Missouri), phone 800-682-0707, which answered when SearchSystems opened it on October 9, 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 800-682-0707.
The Oregon County Jail by the Numbers
On an average day in 2019 the jail held about 12 people. Its rated capacity in 2019 was 10 beds, and it ran at 120 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Oregon County has about 8,700 residents (2024 Census Bureau estimate), so the jail holds about 14 people for every 10,000 residents.
Who Books People Into the Oregon County Jail
The Oregon County Sheriff's Office and the agencies that report for Thayer and Alton make the arrests that end in a booking in Oregon County.
The largest arrest counts reported to the FBI were Thayer's 37 for 2025, the Oregon County Sheriff's Office's 7 for 2025 and Alton's 0 for 2019.
Together, the two agencies in Oregon County with all twelve months of 2025 on file reported 44 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 Oregon 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 Oregon County serves the sentence in a facility of the Missouri Department of Corrections, whose inmate locator is at web.mo.gov/doc/offSearchWeb.
Frequently Asked Questions
How do I find an inmate in Oregon County?
Ask the Oregon County Sheriff's Office at 800-682-0707; its jail page SearchSystems verified is at oregoncountysheriff.org/jail.
How many people are in the Oregon County jail?
About 12 on an average day in 2019, the latest year in the Vera Institute's jail data, against a rated capacity of 10 beds.
What is the phone number for the Oregon County jail?
800-682-0707, the number on the page of the Oregon County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Oregon County go?
To a facility of the Missouri Department of Corrections; its inmate locator is at web.mo.gov/doc/offSearchWeb.
Is this the official Oregon 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.