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. Every office link was opened and checked against the office's own site between September 23, 2026 and October 2, 2026.
Knox County, Missouri, has about 3,700 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Knox County is held at the county jail, run by the Knox 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, who books people, state prison and common questions.
Related guides: Knox County public records, Knox County arrest records, Knox County warrants, Knox County criminal records, Knox County court records, Missouri arrest records and Missouri inmate search.
Finding Someone in Custody in Knox County
A person kept in custody after an arrest in Knox County is held at the county jail, run by the Knox County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Knox County Sheriff's Office at knoxsheriff.org (page title: Knox County Sheriff's Office), phone 888-868-4631, which answered when SearchSystems opened it on September 28, 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 888-868-4631.
Who Books People Into the Knox County Jail
The Knox County Sheriff's Office and the agency that reports for Edina make the arrests that end in a booking in Knox County.
The largest arrest counts reported to the FBI were Edina's 25 for 2019 and the Knox County Sheriff's Office's 1 for 2025.
The Knox County Sheriff's Office reported 1 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 Knox 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 Missouri Department of Corrections lists its inmates at web.mo.gov/doc/offSearchWeb.
Frequently Asked Questions
How do I find an inmate in Knox County?
Ask the Knox County Sheriff's Office at 888-868-4631; its jail page SearchSystems verified is at knoxsheriff.org.
What is the phone number for the Knox County jail?
888-868-4631, the number on the page of the Knox County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Knox 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 Knox 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.