About This Place
Twin Brooks is a town in Grant County, South Dakota, United States. The population was 69 at the 2010 census.
Twin Brooks is located at 45°12′20″N 96°46′54″W / 45.20556°N 96.78167°W / 45.20556; -96.78167 (45.205510, -96.781717).
According to the United States Census Bureau, the town has a total area of 0.4 square miles (1.0 km²), all of it land.