South Windsor is a town in Hartford County, Connecticut, United States. The town is part of the Capitol Planning Region. The population was 26,918 at the 2020 census. In 1659, Thomas Burnham purchased the tract of land now covered by the towns of South Windsor and East Hartford from Tantinomo, chief sachem of the Podunk Indians. Burnham lived …South Windsor is a town in Hartford County, Connecticut, United States. The town is part of the Capitol Planning Region. The population was 26,918 at the 2020 census. In 1659, Thomas Burnham purchased the tract of land now covered by the towns of South Windsor and East Hartford from Tantinomo, chief sachem of the Podunk Indians. Burnham lived on the land and later willed it to his nine children. Beginning in the middle of the 17th century, a few settlers from Windsor began using land on the east bank of the Connecticut River for grazing and farming purposes. By 1700, a number of families had made their homes in the area. In 1768, the residents of the area were allowed to incorporate as the separate town of East Windsor, though the area was informally referred to as East Windsor before this time. At the time, the town included all of what is now the present-day towns of East Windsor, South Windsor, and Ellington. Known for its agriculture and ship building, the town of East Windsor, including South Windsor, supplied more than 200 volunteers during the American Revolution. In 1786, Ellington became an independent town, and South Windsor was incorporated as a separate town in 1845. Tobacco has been a major crop grown in South Windsor since its founding.