where is titusville nj
Titusville, New Jersey. Titusville is an unincorporated community located within Hopewell Township in Mercer County, New Jersey, United States. The area includes a post office with its own ZIP code (08560), a small village of homes, and a large park dedicated to George Washington's crossing of the Delaware River in 1776. Titusville was added to the National Register of Historic Places in 1983.