State Trunk Highway 64 (WIS 64) is a 275.65-mile-long (443.62 km) highway in Wisconsin, which runs from the St. Croix Crossing bridge as a continuation of Minnesota State Highway 36 (MN 36) near Stillwater, Minnesota, and continues east to its eastern terminus in downtown Marinette, where it terminates at US Highway 41 (US 41) at an intersection on the corner of Marinette and Hall Avenue. Along the way, Highway 64 runs east–west through eight counties across northern Wisconsin.