About This Place
Lake Andes is a city in Charles Mix County, South Dakota, United States. The population was 879 at the 2010 census. It is the county seat of Charles Mix County.
Lake Andes is located at 43°9′25″N 98°32′17″W / 43.15694°N 98.53806°W / 43.15694; -98.53806 (43.156825, -98.538053).
According to the United States Census Bureau, the city has a total area of 0.8 square miles (2.1 km²), of which, 0.8 square miles (2.1 km²) of it is land and 0.04 square miles (0.1 km²) of it (2.41%) is water.