Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones the agency reported to the FBI, through 2023. 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 26, 2026 and October 4, 2026.
Warrenton, Missouri, in Warren County, has about 9,400 residents (2024 Census Bureau estimate), and its arrests are reported to the FBI by an agency of its own. An arrest in the city leaves the same records whoever makes it: the arresting agency's report, the record of anyone held at the county jail, and, if the Prosecuting Attorney files charges, a case in the Warren County Circuit Court. This guide says who keeps each one, what it costs and who may see it, with the arrest counts the agency reported.
This guide covers who makes arrests, how many arrests, booking and the jail, finding an arrest, copies and common questions.
Related guides: Warrenton public records, Warren County arrest records, Missouri arrest records and Missouri inmate search.
Who Makes Arrests in Warrenton
The FBI lists Warrenton with an arrest reporting agency of its own, filed as Warrenton Police Department. It reported 236 arrests for 2023, its latest complete year. A city is listed separately whether the officers are the city's own or the sheriff's under contract; the FBI's list does not say which.
Outside the city, the Warren County Sheriff's Office is the county agency. It reported 164 arrests for 2024.
How Many Arrests Warrenton Reports
The FBI publishes every agency's monthly arrest counts on the Crime Data Explorer. These are the full-year totals, all offenses, as the FBI held them on October 8, 2026; a year with months missing or not reported is left out.
- Warrenton: 236 for 2023, 306 for 2022, 314 for 2021, 442 for 2020 and 857 for 2019.
Warrenton's 236 arrests in 2023 were down 23 percent from 306 in 2022.
Across Warren County, the three agencies with all twelve months of 2024 on file reported 252 arrests between them.
Booking: Where People Arrested in Warrenton Are Held
The county jail is where a person arrested in Warrenton and kept in custody ends up, whichever agency made the arrest, though a city department may hold someone in its own cells first and a person cited and released at the scene is never booked. The jail's record of each person held, with the charges, is a public record of the arrest, and once the person is released or sentenced the record continues in the court file.
On an average day in 2019 the jail held about 91 people. Its rated capacity in 2019 was 104 beds, and it ran at 88 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
SearchSystems opened and checked the jail page of the Warren County Sheriff's Office at warrencomosheriff.gov (page title: Warren County Sheriff Department | Ready to Protect & Proud to Serve), phone 636-456-4332, which answered when SearchSystems opened it on October 4, 2026.
A person sentenced to prison serves the sentence in a facility of the Missouri Department of Corrections, whose inmate locator is at web.mo.gov/doc/offSearchWeb.
How to Find Out About an Arrest in Warrenton
Whether someone was arrested in Warrenton, and what came of it, shows up in two places: Case.net, the Missouri courts' free statewide case search, which shows whether charges were filed; the Prosecuting Attorney, which decides whether an arrest becomes a charge (its page is at warrencountyrecord.com/stories/new-interim-prosecutor-named-for-war..., phone (636) 456-6397).
Missouri is one of the states that lets anyone look up another person's statewide criminal history: the open record search on the MACHS site lets anyone check convictions by name, through the Missouri State Highway Patrol Criminal Justice Information Services Division. That record shows what agencies reported to the state, which is wider than one county's court index but can lag it.
Getting a Copy of an Arrest Record in Warrenton
An arrest report belongs to the agency whose officer wrote it, and that agency releases it, not the court or the jail. Under the Missouri Sunshine Law the agency must answer within 3 business days, and it may charge research time and copying.
- An arrest by the Warrenton police: the police records page SearchSystems verified at warrenton-mo.org/police-department/records-division (page title: Records Division | City of Warrenton, Missouri), Monday through Friday, 8:00AM - 5:00PM, which answered when SearchSystems opened it on September 26, 2026.
- An arrest by the Warren County Sheriff's Office: ask its records unit, reached through the office at 636-456-4332.
- A defendant who has been charged gets the report through the case: the Prosecuting Attorney, (636) 456-6397, handles discovery for pending cases.
- Your own statewide record: the same request described above, for your own name.
The Warren County guide covers every agency in the county: Warren County arrest records.
Frequently Asked Questions
How many arrests are made in Warrenton each year?
Warrenton reported 236 arrests to the FBI for 2023, its latest full year.
How do I find out if someone is in jail in Warrenton?
Ask the Warren County Sheriff's Office at 636-456-4332; its jail page SearchSystems verified is at warrencomosheriff.gov.
Where are people arrested in Warrenton booked?
Those kept in custody go to the county jail, run by the Warren County Sheriff's Office; a person cited and released at the scene is not booked.
Are arrest records public in Warrenton?
The court files of criminal cases are public, and so is the statewide criminal history kept by the Missouri State Highway Patrol Criminal Justice Information Services Division: the open record search on the MACHS site lets anyone check convictions by name. The arrest report itself is released by the agency that made the arrest, under the Missouri Sunshine Law.
How do I get a copy of an arrest report in Warrenton?
From the agency that made the arrest: the Warrenton police for its own arrests, the Warren County Sheriff's Office for the sheriff's. Under the Missouri Sunshine Law the answer is due within 3 business days.
Is this the official Warrenton 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.