Corsica is a city in Douglas County, South Dakota, United States.

[7] The town took its name from Corsica, the native land of a share of the railroad workers.

There were 286 housing units at an average density of 340.5 per square mile (131.5/km2).

31.4% of all households were made up of individuals, and 20.4% had someone living alone who was 65 years of age or older.

There were 271 housing units at an average density of 407.1 per square mile (157.2/km2).

35.1% of all households were made up of individuals, and 23.9% had someone living alone who was 65 years of age or older.