Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest and crime 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 on September 23, 2026.
St. Charles County, Missouri, has about 424,000 residents (2024 Census Bureau estimate). In Missouri the public criminal record is the court file, kept by the Circuit Clerk; the statewide criminal history kept by the Missouri State Highway Patrol Criminal Justice Information Services Division is open to anyone who asks. This guide says where each record of a criminal case from St. Charles County is kept and how it is seen.
This guide covers the court file, the statewide record, local arrest records, the crimes behind the records, the prosecutor, sex offender registry, records requests, directory links and common questions.
Related guides: St. Charles County public records, St. Charles County arrest records, St. Charles County warrants, St. Charles County court records, St. Charles County police reports, Missouri arrest records and Missouri inmate search.
Criminal Cases in the St. Charles County Circuit Court
A criminal case from St. Charles County is filed in the St. Charles County Circuit Court, and the court file, kept by the Circuit Clerk, is the record of it that the public may see.
The court records page SearchSystems verified for the county is 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 Criminal History and Your Own Copy
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. The result is the repository record, what agencies reported to the state, which is wider than one county's court index but can lag it.
Arrest Records Kept Locally in St. Charles County
The St. Charles County Sheriff's Office, the St. Charles County Police Department and the agencies that report for O'Fallon, St. Charles, St. Peters, Wentzville, Lake St. Louis, Cottleville and one more cities keep the arrest records in St. Charles County: the report and the booking record of each arrest stay with the agency that made it, separate from the court file and from the state repository.
The FBI's agency list also places these agencies in St. Charles County: St. Charles Regional Drug Task Force (other agency); St. Charles Community College (campus police); each keeps the records of its own arrests.
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; how each case ended is in the court file, not in the arresting agency's.
The agencies and their counts, year by year, are in St. Charles County arrest records.
The Crimes Behind the Records: St. Charles County in 2025
The eight agencies in St. Charles County with all twelve months of 2025 on file reported 541 violent and 2,275 property crimes to the FBI that year; the seven of them with both 2025 and 2024 complete reported 2,726 crimes in 2025 against 2,984 in 2024. Each reported crime is a report on file with the agency that took it, and each arrest that follows is the start of a criminal record.
The full crime section, agency by agency, is on the St. Charles County public records guide.
The Prosecuting Attorney for St. Charles County
The Prosecuting Attorney decides which arrests in St. Charles County become charges and files them in the St. Charles County Circuit Court; the office answers questions about pending prosecutions, and the case files themselves are court records.
The office'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 Sex Offender Registry for St. Charles County
Registered sex offenders living in St. Charles County are listed on the Missouri Sex Offender Registry, run by the Missouri State Highway Patrol at mshp.dps.missouri.gov/CJ38/searchRegistry.jsp. The registry is public and can be searched online.
Registration itself is done in person with the local agency where the registrant lives: the sheriff's office, or the city police in a city with its own department.
Asking an Agency in St. Charles County for a Record
An arrest report, a booking record or a local criminal history letter comes from the agency that holds it, not from the court.
Under the Missouri Sunshine Law a county office must answer a request within 3 business days, and it may charge research time and copying.
More Official Criminal Records Pages for St. Charles County
The SearchSystems directory, online since 1997, lists the official pages for St. Charles County and Missouri. These criminal records pages from its St. Charles County listing were opened again on October 2, 2026 and each one still answers:
- Sex Offenders (sccmo.org)
Frequently Asked Questions
Are criminal records public in St. Charles County?
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.
Can I search St. Charles County criminal cases online?
The court records page SearchSystems verified for the county is at stcharlescitymo.gov/176/Municipal-Courts (page title: Municipal Court | St. Charles, MO); it belongs to a lower court, not to the St. Charles County Circuit Court. Statewide, Case.net is the Missouri courts' free statewide case search.
How do I get my own Missouri criminal history?
Through the same name-based search, run on yourself.
Who prosecutes crimes in St. Charles County?
The Prosecuting Attorney, reached at (636) 940-4636, which files its cases in the St. Charles County Circuit Court.
Is this the official St. Charles 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.