Hamilton County, Illinois

Hamilton County is located in southeastern Illinois. The county seat is McLeansboro.

County Information

County seat
McLeansboro

Courts serving Hamilton County

Judicial circuit
2nd Circuit, 5th District
County seat
McLeansboro
Courthouse
Hamilton County Courthouse
Courthouse address
100 South Jackson Street, McLeansboro, IL 62859
Court telephone
(618) 643-3224
Chief judge
Beth Sandusky

Divisions and services listed for this court: Disability Information (ADA), Hamilton County Directory, Self-Represented Litigant Resources, Court Disability Coordinator.

Getting to and around Hamilton County

Illinois Route 14 · Illinois Route 142 · Illinois Route 242

Hamilton County Courthouse

Community information compiled from api.census.gov, en.wikipedia.org, illinoiscourts.gov and reviewed 2026-09-10.

Legal Services in Hamilton County

Black, Ballard, McDonald, P.C. represents Hamilton County clients in the following practice areas:

Hamilton County sits in Illinois's 2nd Circuit, 5th District, and county matters are filed at the Hamilton County Courthouse.

Contact the Firm

The office is located in Mt. Vernon, Illinois. Contact an attorney to discuss your Hamilton County matter.