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 October 9, 2026.
Clayton, Missouri, in St. Louis County, has about 18,000 residents (2024 Census Bureau estimate). Its court cases are filed in the St. Louis 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: Clayton public records, St. Louis County court records, Clayton arrest records, Clayton warrants, Clayton inmate search, Clayton criminal records, Missouri arrest records and Missouri inmate search.
The Courts That Hear Cases from Clayton
In Clayton, the St. Louis County Circuit Court 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 Clayton
For St. Louis County, SearchSystems opened and checked the court records page for the county at courts.mo.gov/page.jsp?id=4714 (page title: St. Louis County Local Rules & Filing Information), a site that blocks automated checks (HTTP 403), so open it in a browser.
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 Clayton
Eureka reported 332 arrests to the FBI for 2025; the Prosecuting Attorney decides which of those arrests become cases in the St. Louis County Circuit Court.
The Prosecuting Attorney's page SearchSystems verified is at stlcopa.stlouiscountymo.gov (page title: Prosecuting Attorney | St. Louis County), a site that blocks automated checks (HTTP 403), so open it in a browser.
The Kinds of Court Files
Criminal cases, divorces, traffic tickets and evictions all end up as files of these courts, and the file is what the public sees of each.
The other Clayton guides take the kinds of file one at a time: Clayton criminal records, Clayton divorce records, Clayton traffic tickets, Clayton DUI and Clayton property records.
Frequently Asked Questions
How do I look up a court case in Clayton?
Through Case.net, the Missouri courts' free statewide case search.
Which court hears felonies in Clayton?
The St. Louis 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 Clayton?
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 Clayton 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.