State Route 39 is a primarily east–west running state highway in north-central and northeastern portion of the U.S. state of Ohio. The route runs through seven counties on its approximately 155-mile (249 km) trip through the region. Its western terminus is at State Route 103 near New Washington, and its eastern terminus is at PA 68 near East Liverpool.

State Route 9 is a north–south route running through four counties in east central Ohio. Its route is 92.5 miles (148.9 km) long. The southern terminus is at SR 148 in Armstrongs Mills and the northern terminus is with US 62 north of Salem.