Rock County is a county located in the southwestern corner of the U.S. state of Minnesota. According to the 2020 census, its population was 9,704. The county seat is Luverne. It is located within the Sioux Falls MSA.

Luverne is a city and the county seat of Rock County, Minnesota, United States, along the Rock River. The population was 4,946 at the 2020 census. It is one of four towns profiled in the 2007 Ken Burns documentary The War. It is the main setting for the second season of the TV show Fargo.