Illinois State Route 3 is a east-west highway in Southern Jersey County. It runs atop the bluffs on the northern banks of the Mississippi River. IL St Rt 3 passes through the following town in Jersey County. Grafton
IL St Rt 3 is not multi-plexed in Jersey County. IL St Rt 3 intersects the following highways in Jersey County. Illinois State Route 109, near New Newbern.
A Jersey County mile marker. NB IL St Rt 3 near New Newbern. NB IL St Rt 3 near Newbern. NB IL St Rt 3 near Grafton. The northern start point for IL St Rt 3. The southern end in Grafton. The northern end marker.
