Morristown is a town in Corson County, South Dakota, United States.

[6] According to the United States Census Bureau, the town has a total area of 0.35 square miles (0.91 km2), all land.

43.8% of all households were made up of individuals, and 18.8% had someone living alone who was 65 years of age or older.

The racial makeup of the town was 90.24% White, 3.66% Native American, and 6.10% from two or more races.

15.6% of all households were made up of individuals, and 9.4% had someone living alone who was 65 years of age or older.

There were no families and 2.5% of the population living below the poverty line, including no under eighteens and none of those over 64.