Iroquois County Highway 4 is a east-west highway in Northwestern Iroquois County. This runs from Iroquois County Highway 24 to the Ford/Iroquois County Line. ICH 4 does not pass through any towns in Iroquois County. ICH 4 intersects the following highways in Iroquois County. Illinois State Route 1, near Martinton. U.S. Rt. 45, near Clifton. U.S. Rt. 52, near Clifton. Interstate 57, at Clifton. Iroquois County Highway 23, near Clifton. Iroquois County Highway 24, near Ashkum. Iroquois County Highway 8, near Kempton.
A yellow sign on NB IL St Rt 1. A BGS on NB I-57. EB ICH 4 in Clifton. WB ICH 4 near ICH 8. WB ICH 4 near the Ford/Iroquois County Line.
