Lake City is a town in Marshall County, South Dakota, United States.

There were 29 housing units at an average density of 131.8 per square mile (50.9/km2).

The racial makeup of the town was 82.4% White, 7.8% Native American, and 9.8% Asian.

21.1% of all households were made up of individuals, and 5.3% had someone living alone who was 65 years of age or older.

47.4% of all households were made up of individuals, and 31.6% had someone living alone who was 65 years of age or older.

There were no families and 8.0% of the population living below the poverty line, including no under eighteens and 22.2% of those over 64.