Green Township is a rural township in Sussex County, New Jersey, set within the Kittatinny Mountains in the state's northwest corner. Its population was 3,627 at the 2020 census, spread across a landscape of farms, forested ridges, and scattered homes rather than concentrated in any single village center. The township's name and character both reflect a long agricultural heritage: settled in the eighteenth century, it drew many German-heritage farmers in the nineteenth century and remained genuinely rural well into the 1900s. The area carries a distinctive Revolutionary War history. In 1779, George Washington's army marched through the township along the King's Highway, and a contingent of Continental troops is recorded as having camped at a local farm. That history survives in the township's preserved nineteenth-century buildings and its deliberate commitment to low-density, pastoral living. Green Township is a primarily residential and agricultural community. It has no true downtown; residents look to nearby Newton, the Sussex County seat, and the surrounding towns for shopping, services, and commerce. The township's own institutions — its municipal government, churches, and the Green Hills School — form the heart of local community life. The township's location places it within easy reach of the Delaware Water Gap National Recreation Area, where the Delaware River cuts through the Kittatinny Ridge and offers hiking, paddling, fishing, and hunting across a landscape of forested mountains and river valleys. That proximity, combined with the area's preserved farmland and open space, defines Green Township as a quiet, outdoors-oriented corner of New Jersey well removed from the state's denser eastern counties. It appeals to those seeking acreage, privacy, and a working rural landscape, while remaining connected to the region through the Sussex County road network.