Pierpont is a town in northwestern Day County, South Dakota, United States.

[6] According to the United States Census Bureau, the town has a total area of 0.15 square miles (0.39 km2), all land.

43.3% of all households were made up of individuals, and 20.9% had someone living alone who was 65 years of age or older.

46.9% of all households were made up of individuals, and 29.7% had someone living alone who was 65 years of age or older.

There were no families and 4.1% of the population living below the poverty line, including no under eighteens and 9.6% of those over 64.

[10] Media related to Pierpont, South Dakota at Wikimedia Commons