Illinois 164 is an east-west route in western Illinois, connecting many towns together. The route starts at, ends at, and stays near US34 for its entire length.
Intersections from west to east:
IL164 begins at US34 near Gladstone
IL164 joins US34/US67 north and east approaching Monmouth
US67 leaves to the north by Monmouth
US34 leaves east and follows south of IL164
IL164 ends at US34 near Galesburg, at a point which is the northern terminus of IL41.
It passes through these towns: Gladstone, Oquawka, Monmouth and Coldbrook.
