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 25, 2026.
Mexico, Missouri, in Audrain County, has about 11,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Mexico is held at the county jail, run by the Audrain 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: Mexico public records, Audrain County inmate search, Mexico arrest records, Mexico warrants, Mexico criminal records, Mexico court records, Missouri arrest records and Missouri inmate search.
Finding Someone in Custody in Mexico
A person kept in custody after an arrest in Mexico is held at the county jail, run by the Audrain County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the custody page of the Audrain County Sheriff's Office at audrainsheriff.com/inmate-lookup (page title: Current Inmate Lookup | Audrain County Sheriff), which answered when SearchSystems opened it on September 23, 2026.
Someone booked recently shows on that page; someone cited and released at the scene, or held a few hours at a city station, does not.
The Audrain County Jail by the Numbers
On an average day in 2022 the jail held about 45 people, up from about 36 in 2019. Its rated capacity in 2022 was 140 beds, and it ran at 32 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Audrain County has about 24,000 residents (2024 Census Bureau estimate), so the jail holds about 19 people for every 10,000 residents.
Who Books People Into the Audrain County Jail
The Audrain County Sheriff's Office and the agency that reports for Mexico (filed by the FBI as Mexico Police Department) make the arrests that end in a booking in and around Mexico.
The largest arrest counts reported to the FBI were Mexico's 645 for 2025, the Audrain County Sheriff's Office's 157 for 2025 and Farber's 0 for 2021.
Together, the three agencies in Audrain County with all twelve months of 2025 on file reported 802 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 Mexico 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 Audrain 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 Mexico?
Look on the custody page of the Audrain County Sheriff's Office at audrainsheriff.com/inmate-lookup. It covers people booked into the county jail.
How many people are in the Audrain County jail?
About 45 on an average day in 2022, the latest year in the Vera Institute's jail data, against a rated capacity of 140 beds.
Where do people sentenced to prison in Audrain 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 Mexico 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.