Illinois State Route 40 is the main north-south route in eastern Stark County. Much of the highway runs along the Stark/Marshall/Bureau County Lines. IL St Rt 40 passes through the following town in Marshall County. Bradford IL St Rt 40 is multi-plexed in Stark County. Illinois State Route 17, near Camp Grove. IL St Rt 40 intersects the following highways in Stark County. Illinois State Route 17, near Camp Grove. Illinois State Route 93, near Bradford.
