County Route 539 is a county highway in the U.S. state of New Jersey. The highway extends 54.32 miles (87.42 km) from Main Street in Tuckerton to CR 535 in Cranbury Township. Much of the two-lane route passes through isolated areas of the Pine Barrens and the eastern end of the Fort Dix entity of Joint Base McGuire–Dix–Lakehurst. In these stretches, the route has a speed limit of 55 miles per hour (89 km/h), one of the few two-lane roads in the state to carry a 55 mph limit. CR 539 passes through three boroughs: Tuckerton, Allentown, and Hightstown. Other than those boroughs, the route travels mainly through rural townships.

U.S. Route 9 (US 9) is a United States Numbered Highway in the Mid-Atlantic region of the United States, running from Laurel, Delaware, to Champlain, New York. In New Jersey, the route runs 166.80 miles (268.44 km) from the Cape May–Lewes Ferry terminal in North Cape May, Cape May County, where the ferry carries US 9 across the Delaware Bay to Lewes, Delaware, north to the George Washington Bridge in Fort Lee, Bergen County, where the route along with Interstate 95 (I-95) and US 1 continue into New York City. US 9 is the longest U.S. Highway in the state.