Hanover Township is located in eastern Morris County and includes the communities of Whippany and Cedar Knolls. The municipality sits near the intersection of several major transportation corridors, including Route 10, Route 24, Interstate 287, and Interstate 80. These connections support a mix of corporate offices, industrial properties, residential neighborhoods, schools, parks, and shopping areas. The Whippany River and surrounding lowlands shape parts of the township, while higher residential areas extend toward Morris Plains and Parsippany. Historic sites, older village roads, and institutions related to the area's early mills and farms remain visible alongside modern development. Hanover borders Morristown, Morris Township, Parsippany-Troy Hills, East Hanover, Florham Park, and Morris Plains. Its central Morris County location and strong highway access have made it an important employment center, while Whippany and Cedar Knolls continue to maintain distinct local identities within the township.