Illinois 150 is a route un southwestern Illinois running northeast from a crossing over the Mississippi River at Chester to IL154 in western Perry County. It connects many towns in Randolph County together.
Intersections from southwest to northeast:
IL150 begins as Missouri Route 51 crosses the Mississippi
IL3 joins from the southeast in Chester
IL3 leaves toward the northwest in Chester
IL4 joins from the north through Steeleville
IL4 leaves south
IL150 ends at IL154.
It passes through these towns: Steeleville, Percy, Culter, and Chester.
