Mercer County Criminal Court Records

Mercer County criminal court records are held by the Circuit Court Clerk in Aledo, covering all criminal filings in this northwest Illinois county of about 15,000 residents along the Iowa border. This page covers how to search those records online, contact the Aledo courthouse, use the Illinois State Police for statewide criminal history checks, and understand which records are open to public view.

Mercer County Circuit Court Clerk

Circuit Clerk Kristin Relander manages the Mercer County clerk's office at 100 Southeast 3rd Street, Aledo, IL 61231-0175. The main phone is 309/582-7122 and the fax is 309/582-7121. The clerk's office is the official keeper of all court records in Mercer County, covering criminal charges, civil cases, traffic matters, and small claims filings.

For criminal court records in particular, the clerk holds every document filed from initial charging through final disposition. That includes complaints, indictments, bond orders, motions, court orders, plea agreements, and sentencing documents. Public case files can be reviewed at the Aledo courthouse without any fee. Copies carry a charge per page set by state law.

You do not need to say why you want a public court record. Under 705 ILCS 105, the Clerks of Courts Act, circuit clerks are required to keep public records open for inspection. That law covers the Mercer County clerk the same as every other circuit court in the state. Calling ahead is always a good move, especially if you're looking for older cases.

The Illinois Courts Circuit Clerk Directory lists Kristin Relander as Mercer County's clerk and provides the Aledo courthouse contact details.

Online Search for Mercer County Cases

Mercer County participates in Judici.com, the free case search service used by 82 of Illinois' 102 counties. You can search Mercer County criminal court records by party name, case number, or attorney. Results show the case type, charges, scheduled hearings, and case status. No login is needed for basic searches.

Judici's multi-county search feature is worth using here because Mercer borders several counties. You can check Rock Island, Henry, Knox, Henderson, and Warren in the same query alongside Mercer. That is practical when you're not certain which county a case was filed in along the Illinois-Iowa border area.

Judici.com provides free online access to Mercer County criminal court records and supports combined searches across neighboring counties like Rock Island and Henry.

For appellate records tied to Mercer County cases, use re:SearchIL. This statewide appellate database has been free since May 1, 2025. The Illinois Courts website provides background on how the circuit and appellate court systems are structured and has links to every county clerk in Illinois.

In-Person and Mail Access in Aledo

Visit the Mercer County courthouse at 100 Southeast 3rd Street in Aledo to review records in person during regular business hours. Bring the subject's full name and a case number if you have one. Staff will locate the file. Certified copies can be ordered and paid for at the counter the same day.

Mail requests go to: Mercer County Circuit Clerk, 100 Southeast 3rd Street, Aledo, IL 61231-0175. Include the subject's name, an approximate filing date, the type of record you need, and your contact information. A self-addressed stamped envelope helps the office return documents to you. Without a case number, a manual name search takes more time. The fax number is 309/582-7121; call first to ask what the office will accept by fax.

Statewide Criminal Records Through ISP BOI

The Illinois State Police Bureau of Identification (ISP BOI) collects conviction data from all 102 Illinois counties, including Mercer. When Mercer County criminal cases result in convictions, those outcomes are reported to ISP BOI and added to the statewide database. The bureau can be reached at 815/740-5160.

Background checks are available at isp.illinois.gov/BureauOfIdentification/BackgroundChecks. Certified reports from ISP BOI are used for professional licensing, regulated employment, and volunteer screening. The Uniform Conviction Information Act, 20 ILCS 2635, governs what ISP can release and to whom.

Self-checks are free. Use CHIRP at chirp.isp.illinois.gov to view your own criminal history and dispute any errors you find.

The ISP Bureau of Identification aggregates Mercer County conviction records alongside data from all other Illinois circuit courts into a single statewide database.

Public Records vs. Restricted Records

Most Mercer County criminal court records are open to the public. Charging documents, docket entries, court orders, plea agreements, and sentencing records are all accessible. Illinois starts from the assumption that court records are public unless a specific statute says otherwise.

Several categories are restricted. Juvenile delinquency records are sealed. Records expunged or sealed by court order are removed from public access. Adoption records are confidential. The Illinois Court Record and Document Accessibility Act, 705 ILCS 86, defines which records courts may restrict and what conditions apply. In public cases, sensitive data like Social Security numbers and financial account details are redacted before records are released.

The Illinois judiciary is exempt from FOIA. Under 5 ILCS 140, the state Freedom of Information Act does not apply to courts. Sending a FOIA request to the Mercer County clerk will not get you court records. Your access rights come from the Clerks of Courts Act and court rules.

Electronic Filing and Federal Courts

Attorneys and parties in Mercer County cases file documents electronically through eFileIL, the state's e-filing portal. The public still accesses case records through the Aledo clerk's office or through Judici online.

Mercer County is in the Central District of Illinois for federal court purposes. If a matter may involve federal charges alongside state charges, check PACER for U.S. District Court filings. State and federal cases are separate and need separate searches.

Legal Aid and Self-Help

Illinois Legal Aid Online provides free guides on expungement, record sealing, and how to request court records in Illinois, covering Mercer County as part of its statewide resource. Illinois Court Help has live chat with trained court navigators who can walk you through procedures without giving legal advice. No appointment is needed for either.

Nearby Counties

Mercer County borders several northwest Illinois counties, each with its own circuit clerk and criminal court records.