South Lead Hill is a town in Boone County, Arkansas, United States.

According to the United States Census Bureau, the town has a total area of 0.3 km2 (0.1 mi2), all land.

The racial makeup of the town was 93.18% White, 2.27% Native American, and 4.55% from two or more races.

17.9% of all households were made up of individuals, and 10.7% had someone living alone who was 65 years of age or older.

There were no families and 14.9% of the population living below the poverty line, including no under eighteens and none of those over 64.