At one time Dover Township was part of Shrewsbury Township in Monmouth County. According to the "Township of Dover, 1767 - 1992," a booklet published during the community's 225th Anniversary, in 1767 a group of local residents petitioned the Royal General Assembly to create their own township. The 441 square mile township ranged from what is the Monmouth County line at its northern extremity to present day Oyster Creek in Lacey Township in the south and from the Burlington County line on the west to the Atlantic Ocean on the east. The township was formed more than 80 years before Ocean County was established.
Entwined with the history of Dover Township is the village of Toms River.
Toms River has come to have two identities, much to the confusion of new residents and visitors to the area