South Flat is an unincorporated community in Washakie County, Wyoming, United States. The population was 374 at the 2000 census, when it was a census-designated place (CDP).
Geography
According to the United States Census Bureau, in 2000 the CDP has a total area of 22.2 square miles (57.4 km<sup>2</sup>), of which 21.7 square miles (56.2 km<sup>2</sup>) is land and 0.5 square mile (1.3 km<sup>2</sup>) (2.25%) is water.
Demographics
As of the census