Lake County Small Claims Court Illinois: Filing, Fees, and What to Expect

Filing in the 19th Judicial Circuit

Lake County operates under the 19th Judicial Circuit, with the main courthouse in Waukegan. Small claims cases follow the same statewide rules (Supreme Court Rules 281–289) as every other Illinois county, but the 19th Circuit has its own local practices worth knowing before you file.

Lake County local rules emphasize strict compliance with Rule 282's documentation requirements. If your claim is based on a written contract, lease, or invoice, you must attach a copy to your complaint. A written affidavit supporting your claims may also be required. Showing up without the document attached is a common mistake that delays cases.

Fees and Filing

The Lake County Circuit Clerk's fee schedule effective September 16, 2026 lists these small-claims filing fees:

• Claims of $2,500 or less: $109
• Claims of $2,500.01–$10,000: $284

Defendants pay no appearance fee — that's a statewide rule.

File electronically through eFileIL (mandatory for all Lake County civil filings). Select the 19th Judicial Circuit, choose "Small Claims" as your case category, upload your complaint and exhibits as redacted PDFs, and pay the filing fee online.

If you qualify for a fee waiver under Rule 298 — household income at or below 125% of federal poverty guidelines, or receiving SSI, TANF, SNAP, or AABD — submit the Application for Waiver of Court Fees with your complaint. The clerk must accept your filing immediately pending judicial review.

Service of Process

Once the clerk issues your summons, you have three service options:

1. Clerk certified mail — under Rule 284, the Lake County Circuit Clerk mails the summons via certified mail, return receipt requested, restricted to the addressee. This is the cheapest option.
2. Sheriff service — the Lake County Sheriff's Office delivers the summons in person. Contact the Sheriff's civil division for current fees.
3. Private process server — a licensed individual appointed by the court, useful when the defendant is avoiding service or lives outside Lake County.

Your summons must be served before the return date, which is set 40 to 61 days after issuance. If service fails (wrong address, refused delivery), you'll need an alias summons — contact the clerk to reissue.

What Happens on the Return Date

Depending on your judge's calendar, the return date in Lake County may be a status call to set a trial date or the trial itself. Come prepared for either: bring your original documents, photos, receipts, and any witnesses who can testify in person. Written statements from people who don't appear are generally inadmissible hearsay.

The hearing is a bench trial — no jury unless someone specifically requests one and pays the $12.50 (6-person) or $25 (12-person) demand fee. Under Rule 286(b), the judge conducts an informal proceeding and may ask questions directly.

Lake County-Specific Tips

Venue check: You can file in Lake County if any defendant lives in the county or if the transaction occurred there. If the defendant lives in Cook or McHenry County, you may need to file there instead — even if you live in Lake County.

Business defendants: Use the Illinois Secretary of State Business Services database to find the exact legal name and registered agent for any business you're suing. Lake County judges are strict about proper party names.

The Illinois Small Claims Filing Guide covers Lake County procedures alongside the statewide rules, with filing checklists and a service tracking log you can print and use.

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