🇺🇸 South Dennis is a place in the town of Dennis in Barnstable County, Massachusetts, United States. South Dennis is located on Cape Cod in the centre of the town of Dennis. It is bordered by the town of Brewster to the north-east, the town of Harwich to the south-east, the CDPs of Dennis Port to the south and West Dennis to the south-west, the town of Yarmouth to the west, and the CDPs of Dennis and East Dennis to the north.
South Dennis has a population of over 3,643 people. South Dennis also forms part of the wider Dennis metropolitan area which has a population of over 14,674 people.