Lake County, South Dakota

Lake County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 11,200. Its county seat is Madison. The county was formed in 1873.

Lake County, South Dakota

Lake County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 11,200. Its county seat is Madison. The county was formed in 1873.