Union County, Illinois

Union County is located in southern Illinois in the Shawnee Hills. The county seat is Jonesboro, site of the third Lincoln-Douglas debate.

County Information

County seat
Jonesboro

Courts serving Union County

Judicial circuit
1st Circuit, District: 5
County seat
Jonesboro
Courthouse
Union County Courthouse
Courthouse address
309 West Market Street, Jonesboro, IL 62952
Court telephone
(618) 833-8114
Chief judge
Keri Clark

Divisions and services listed for this court: Administrative Orders, Disability Information (ADA), Drug and Veteran's Court, e-Filing, Probation and Court Services, Self Represented Litigant Resources, Union County, Union County Court Directory.

Getting to and around Union County

Interstate 57 · U.S. Highway 51 · Illinois Route 3 · Illinois Route 127 · Illinois Route 146

About Union County

  • Brown Barrens Nature Preserve
  • Crab Orchard National Wildlife Refuge
  • Cypress Creek National Wildlife Refuge
  • Lincoln Memorial Picnic Grounds
  • Giant City State Park
  • McClure Shale Glade Nature Preserve
  • Trail of Tears State Forest
  • Shawnee National Forest
  • Union County State Fish and Wildlife Area

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

Legal Services in Union County

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

Union County sits in Illinois's 1st Circuit, District: 5, and county matters are filed at the Union County Courthouse.

Contact the Firm

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