Lebanon is a town in Potter County, South Dakota, United States.

[8] According to the United States Census Bureau, the town has a total area of 0.53 square miles (1.37 km2), all land.

The racial makeup of the town was 91.5% White, 4.3% Native American, and 4.3% from two or more races.

34.8% of all households were made up of individuals, and 13% had someone living alone who was 65 years of age or older.

25.6% of all households were made up of individuals, and 17.9% had someone living alone who was 65 years of age or older.

There were 13.6% of families and 24.3% of the population living below the poverty line, including 37.5% of under eighteens and 17.2% of those over 64.