Zinrico State Route 63 (abbreviated ZIN-63) is a state route maintained by the Transportation Department of the state of Zinrico. It is one of the longest of Zinrico's state highways, nearly running all the way from top to bottom of the state; its south end, at State Highway 6 in Leavenworth, is only about 5.5 miles from the Carlana state line. The north end is at the Avalia state line, where it becomes Avalia State Route 93.