Delaware Route 9 (DE 9) is a state highway that connects DE 1 at the Dover Air Force Base in Kent County to DE 2 in the city of Wilmington in New Castle County. DE 9 is a designated scenic highway known as the Delaware's Bayshore Byway south of New Castle, running through mostly rural areas to the west of the Delaware Bay and the Delaware River as a two-lane undivided road. Between New Castle and Wilmington, DE 9 is a four-lane road that runs through urban and suburban areas. DE 9 passes through several cities and towns including Little Creek, Leipsic, Port Penn, Delaware City, and New Castle. DE 9 has a suffixed route, DE 9A, that provides access to the Port of Wilmington. In addition, it has a truck route, DE 9 Truck, located to the south of New Castle.