Hazel is a town in Hamlin County, South Dakota, United States.

It is part of the Watertown, South Dakota Micropolitan Statistical Area.

[7] According to the United States Census Bureau, the town has a total area of 0.24 square miles (0.62 km2), all land.

30.6% of all households were made up of individuals, and 13.9% had someone living alone who was 65 years of age or older.

26.8% of all households were made up of individuals, and 17.1% had someone living alone who was 65 years of age or older.

There were 16.7% of families and 22.2% of the population living below the poverty line, including 71.4% of under eighteens and none of those over 64.