Georgetown is a town in Sussex County, Delaware, United States. According to 2010 census figures, the population of the town is 6,422, an increase of 38.3% over the previous decade. It is the county seat of Sussex County.
Georgetown is part of the Seaford, Delaware, Micropolitan Statistical Area.
Prior to Georgetown's position as the county seat of Sussex County it was located in Lewes on the Delaware Bay. Dutch colonists had set up Delaware's first colony there in 1631 and it remained the only significant settlement in Delaware for some time. When William Penn established the three lower counties of Pennsylvania, which are now Delaware, Lewes was the natural choice for the location of the Sussex County's Seat of Justice.