De Graff is a city in Swift County, Minnesota, United States.

[6] A post office was established at De Graff in 1873, and remained in operation until 1996.

[6] According to the United States Census Bureau, the city has a total area of 0.826 square miles (2.14 km2), all land.

The racial makeup of the city was 94.8% White, 4.3% African American, and 0.9% from two or more races.

34.0% of all households were made up of individuals, and 17% had someone living alone who was 65 years of age or older.

There were 9.8% of families and 9.7% of the population living below the poverty line, including 3.4% of under eighteens and 18.2% of those over 64.