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 2, 2026.
Mercer County, Missouri, has about 3,500 residents (2024 Census Bureau estimate). Its court cases are filed in the Mercer 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, cities and common questions.
Related guides: Mercer County public records, Mercer County arrest records, Mercer County warrants, Mercer County criminal records, Mercer County police reports, Missouri arrest records and Missouri inmate search.
The Courts That Hear Cases from Mercer County
Court cases from Mercer County are filed in the Mercer 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 Mercer County
For Mercer County, SearchSystems opened and checked the court records page for the county at courts.mo.gov/page.jsp?id=1540 (page title: Mercer 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 Mercer County
The Mercer County Sheriff's Office reported 2 arrests to the FBI for 2024; the Prosecuting Attorney decides which of those arrests become cases in the Mercer County Circuit Court.
The Prosecuting Attorney's page SearchSystems verified is at courtrecord.net/mercer-county-mo-district-attorneys (page title: Mercer County District Attorney Records for Free (Mercer County, MO)), phone 660-748-3332, 712 West Main Street Princeton, MO 64673, which answered when SearchSystems opened it on September 30, 2026.
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 Mercer County guides take the kinds of file one at a time: Mercer County criminal records, Mercer County divorce records, Mercer County traffic tickets and Mercer County DUI.
Cities in Mercer County
Wherever in the county a case arises, it is filed in the Mercer County Circuit Court; tickets under a city's own ordinances go to its municipal divisions where it has one.
The cities and towns in the county are Princeton, Mercer and South Lineville.
Frequently Asked Questions
How do I look up a court case in Mercer County?
Through Case.net, the Missouri courts' free statewide case search.
Which court hears felonies in Mercer County?
The Mercer 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 Mercer County?
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 Mercer 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.