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 October 2, 2026.
Maries County, Missouri, has about 8,500 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Maries County is held at the county jail, run by the Maries 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: Maries County public records, Maries County arrest records, Maries County warrants, Maries County criminal records, Maries County court records, Missouri arrest records and Missouri inmate search.
Finding Someone in Custody in Maries County
The county jail, run by the Maries County Sheriff's Office, holds everyone kept in custody after an arrest in Maries County, from every agency.
SearchSystems opened and checked the custody page of the Maries County Sheriff's Office at mariescountysheriff.org/inmate-roster/search (page title: Inmate Roster | Maries County Sheriff's Office, MO | Searching | Sort Booking Time | Descending | Page 1), which answered when SearchSystems opened it on September 23, 2026.
That page is the place to look for someone booked recently. A person cited and released at the scene, or held only a few hours by a city department, will not be on it.
The Maries County Jail by the Numbers
On an average day in 2018 the jail held about 11 people. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Maries County has about 8,500 residents (2024 Census Bureau estimate), so the jail holds about 13 people for every 10,000 residents.
Who Books People Into the Maries County Jail
The Maries County Sheriff's Office and the agency that reports for Vienna make the arrests that end in a booking in Maries County.
The largest arrest counts reported to the FBI were the Maries County Sheriff's Office's 78 for 2025 and Vienna's 2 for 2025.
Together, the two agencies in Maries County with all twelve months of 2025 on file reported 80 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 Maries 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 Maries County?
Look on the custody page of the Maries County Sheriff's Office at mariescountysheriff.org/inmate-roster/search. It covers people booked into the county jail.
How many people are in the Maries County jail?
About 11 on an average day in 2018, the latest year in the Vera Institute's jail data.
Where do people sentenced to prison in Maries 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 Maries 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.