Pipestone County is a county located in the state of Minnesota, founded in 1857. As of 2000, the population was 9,895. Its county seat is Pipestone.
According to the U.S. Census Bureau, the county has a total area of 466 square miles (1,207 kmē), of which 466 square miles (1,207 kmē) is land and 0 square miles (1 kmē) (0.06%) is water.
Pipestone National Monument is located in the county, just north of the town of Pipestone.