Illinois State Route 147 is a east-west highway in East-Central Johnson County. This runs from Illinois State Route 146 to the Johnson/Pope County Line. IL St Rt 147 passes through the following town in Johnson County. Simpson IL St Rt 147 is not multi-plexed in Johnson County IL St Rt 147 intersects the following highway in Johnson County. Illinois State Route 146, near Vienna.
A junction marker on EB IL St Rt 146. SB IL St Rt 147 at IL St Rt 146. The western end marker.
