Illinois State Route 18 is in Livingston County for approximatly, 1 mile. IL St Rt 18 does not pass through any town in Livingston County. IL St Rt 18 is not multi-plexed in Livingston County. IL St Rt 18 intersects the following highway in Livingston County. Illinois State Route 17, near Blackstone.
Looking north on WB IL St Rt 18 north of IL St Rt 17. Looking north at the eastern end point of IL St Rt 18, near Blackstone. The eastern end marker.
