Rock County is a county located in the U.S. state of Minnesota, in the far southwestern corner of the state. As of 2000, the population was 9,721. Its county seat is Luverne.

According to the U.S. Census Bureau, the county has a total area of 483 square miles (1,251 km²), of which 483 square miles (1,250 km²) is land and 0 square miles (1 km²) (0.05%) is water.

Official Rock County website