Naples is a town in Clark County, South Dakota, United States.
[6] According to the United States Census Bureau, the town has a total area of 0.14 square miles (0.36 km2), all land.
There were 12 housing units at an average density of 85.7 per square mile (33.1/km2).
36.4% of all households were made up of individuals, and 18.2% had someone living alone who was 65 years of age or older.
There were no families and 6.3% of the population living below the poverty line, including no under eighteens and 50.0% of those over 64.