Willingboro, NJ is currently using one area code which is area code 856. Area code 856 was created from a split of area code 609 and put into service on June 12, 1999.
In addition to Willingboro, NJ area code 856 serves southwestern New Jersey and the larger communities of Bridgeton, Camden, Cherry Hill, Deptford, Millville, Mount Laurel, Pennsauken, Vineland, Willingboro and Voorhees along with many smaller communities in the area service area.
Willingboro, NJ is located in Burlington County and observes the Eastern Time Zone. View our Times by Area Code tool.