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 30, 2026.
Decatur, Illinois, in Macon County, has about 69,000 residents (2024 Census Bureau estimate). Its court cases are filed in the Circuit Court of Macon 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 and common questions.
Related guides: Decatur public records, Macon County court records, Decatur arrest records, Decatur warrants, Decatur inmate search, Decatur criminal records, Illinois arrest records and Illinois inmate search.
The Courts That Hear Cases from Decatur
In Decatur, the Circuit Court of Macon 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 Decatur
For Macon County, SearchSystems opened and checked the court records page for the county at apps.ilsos.gov/isairad/maconsrch.jsp (page title: Macon County Circuit Court Case Files Index, 1829-1861), which answered when SearchSystems opened it on September 23, 2026.
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 Decatur
Together, the three agencies in Macon County with all twelve months of 2025 on file reported 4,153 arrests to the FBI that year; the State's Attorney decides which of those arrests become cases in the Circuit Court of Macon County.
The State's Attorney's page SearchSystems verified is at maconcounty.illinois.gov/departments/states-attorney (page title: State's Attorney | Macon County, Illinois), phone (217) 624-4312, 253 East Wood Street Decatur, IL 62523, 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 Decatur guides take the kinds of file one at a time: Decatur criminal records, Decatur divorce records, Decatur DUI and Decatur property records.
Frequently Asked Questions
How do I look up a court case in Decatur?
The court records page SearchSystems verified for the county is at apps.ilsos.gov/isairad/maconsrch.jsp.
Which court hears felonies in Decatur?
The Circuit Court of Macon County, which hears every civil, criminal, family, probate, traffic and juvenile case.
Who keeps the court records in Decatur?
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 Decatur 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.