Sponsored Topics. Wiscasset is a town in and the county seat of Lincoln County, Maine, United States, in the Mid Coast region of the state. The population was 3,603 at the 2000 census. Home to the Chewonki Foundation, Wiscasset is a tourist destination noted for early architecture. In 1605, Samuel de Champlain is said to have landed here and exchanged gifts with the Indians. Situated on the tidal Sheepscot River, Wiscasset was first settled in 1663. The community was abandoned during the French and Indian Wars, and the King Philip's War in 1675 and then resettled around 1730.