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 September 25, 2026.
O'Fallon, Missouri, in St. Charles County, has about 95,000 residents (2024 Census Bureau estimate). Its court cases are filed in the St. Charles County Circuit Court, and the file of each case, kept by the Circuit Clerk, is the public record of it. This guide says which court hears what, where to look a case up and who keeps the files.
This guide covers the courts, the records page, criminal cases, kinds of files and common questions.
Related guides: O'Fallon public records, St. Charles County court records, O'Fallon arrest records, O'Fallon warrants, O'Fallon criminal records, O'Fallon police reports, Missouri arrest records and Missouri inmate search.
The Courts That Hear Cases from O'Fallon
Court cases from O'Fallon are filed in the St. Charles County Circuit Court, which hears every civil, criminal, family, probate and juvenile case, with associate circuit judges taking misdemeanors, traffic and small claims.
A city with a municipal divisions of its own tries the tickets written under its ordinances.
Divorces go to the Circuit Court, and the file stays with the Circuit Clerk.
The Circuit Clerk keeps the files, and a copy of anything in a file comes from that office, under the court's own rules rather than the Missouri Sunshine Law.
Looking Up a Case from O'Fallon
For St. Charles County, SearchSystems opened and checked the court records page for the county at stcharlescitymo.gov/176/Municipal-Courts (page title: Municipal Court | St. Charles, MO), phone (636) 949-3378, 1781 Zumbehl Road St. Charles, MO 63303, Monday - Thursday: 8:30 a.m. to 4:00 p.m., which answered when SearchSystems opened it on September 23, 2026. That page belongs to a lower court, not to the St. Charles County Circuit Court.
Statewide, Case.net is the Missouri courts' free statewide case search.
The Missouri court page SearchSystems verified is at courts.mo.gov.
What Reaches the Court from O'Fallon
Together, the seven agencies in St. Charles County with all twelve months of 2025 on file reported 7,625 arrests to the FBI that year; the Prosecuting Attorney decides which of those arrests become cases in the St. Charles County Circuit Court.
The Prosecuting Attorney's page SearchSystems verified is at stcharlescitymo.gov/839/Prosecuting-Attorney (page title: Prosecuting Attorney | St. Charles, MO), phone (636) 940-4636, 1781 Zumbehl Road, St. Charles, MO 63303, Monday - Thursday 9 a.m. - 4 p.m., which answered when SearchSystems opened it on September 23, 2026.
The Kinds of Court Files
The court file is one record with several readers: a criminal case from the arrest to the sentence, a divorce from the petition to the judgment, a traffic ticket from the citation to the conviction the court reports to the Missouri Department of Revenue Driver License Bureau, and an eviction or a lien on land.
The other O'Fallon guides take the kinds of file one at a time: O'Fallon criminal records, O'Fallon traffic tickets, O'Fallon DUI and O'Fallon property records.
Frequently Asked Questions
How do I look up a court case in O'Fallon?
The court records page SearchSystems verified for the county is at stcharlescitymo.gov/176/Municipal-Courts, phone (636) 949-3378. Statewide, Case.net is the Missouri courts' free statewide case search.
Which court hears felonies in O'Fallon?
The St. Charles County Circuit Court, which hears every civil, criminal, family, probate and juvenile case, with associate circuit judges taking misdemeanors, traffic and small claims.
Who keeps the court records in O'Fallon?
The Circuit Clerk. Copies come from that office under the court's own rules.
Is there a statewide court case search in Missouri?
Yes: Case.net, the Missouri courts' free statewide case search.
Is this the official O'Fallon 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.