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 4, 2026.
Union County, Illinois, has about 17,000 residents (2024 Census Bureau estimate). Its court cases are filed in the Circuit Court of Union County, 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: Union County public records, Union County arrest records, Union County warrants, Union County criminal records, Union County police reports, Illinois arrest records and Illinois inmate search.
The Courts That Hear Cases from Union County
In Union County, the Circuit Court of Union County hears every civil, criminal, family, probate, traffic and juvenile case.
Divorces go to the Circuit Court's domestic relations division, 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 Illinois Freedom of Information Act.
Looking Up a Case from Union County
The court records page SearchSystems verified for the county is at illinoiscourts.gov/courts-directory/146/Union-County-Courthouse/court (page title: Union County Courthouse | State of Illinois Office of the Illinois Courts), phone (618) 833-8114, which answered when SearchSystems opened it on September 23, 2026. That page belongs to a lower court, not to the Circuit Court of Union County.
Illinois has no single public index of every trial court case; each court's records are looked up through that court.
The Illinois court page SearchSystems verified is at illinoiscourts.gov.
What Reaches the Court from Union County
Together, the four agencies in Union County with all twelve months of 2025 on file reported 3,533 arrests to the FBI that year; the State's Attorney decides which of those arrests become cases in the Circuit Court of Union County.
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 Illinois Secretary of State, and an eviction or a lien on land.
The other Union County guides take the kinds of file one at a time: Union County criminal records, Union County traffic tickets, Union County DUI and Union County property records.
Cities in Union County
Wherever in the county a case arises, it is filed in the Circuit Court of Union County.
The cities and towns in the county are Anna, Jonesboro, Cobden, Dongola, Alto Pass and Mill Creek.
Frequently Asked Questions
How do I look up a court case in Union County?
The court records page SearchSystems verified for the county is at illinoiscourts.gov, phone (618) 833-8114.
Which court hears felonies in Union County?
The Circuit Court of Union County, which hears every civil, criminal, family, probate, traffic and juvenile case.
Who keeps the court records in Union County?
The Circuit Clerk. Copies come from that office under the court's own rules.
Is there a statewide court case search in Illinois?
No. Each court's records are looked up through that court.
Is this the official Union 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.