Lexington is a town in and the county seat of Lexington County, South Carolina, United States. According to the United States Census Bureau, the town has a total area of 5.8 square miles (15 sq.km), of which, 5.7 square miles (15 sq.km) of it is land and 0.1 square miles (0.26 sq.km) of it (1.73%) is water. The historic town of Lexington, South Carolina is a direct descendant of the old Royal township of Saxe Gotha. This township was one of eleven established in 1735 by the Colonial government of King George II to encourage settlement of backcountry South Carolina and serve as a protective buffer between powerful Indian tribes to the west and the older settled plantations of the low country. The name Saxe Gotha was given in honor of the marriage of the King's son, Frederick Louis Prince of Wales, to Princess Augusta of the German Duchy of Saxe-Gotha. (The latter couple became the parents of King George III of England).