About This Place
Clear Lake is a city in and the county seat of Deuel County, South Dakota, United States. The population was 1,273 at the 2010 census.
Clear Lake is located at 44°45′19″N 96°41′6″W / 44.75528°N 96.685°W / 44.75528; -96.685 (44.755248, -96.684950).
According to the United States Census Bureau, the city has a total area of 3.2 square miles (8.3 km²), of which, 3.0 square miles (7.8 km²) of it is land and 0.2 square miles (0.5 km²) of it (5.62%) is water.