Lake County, South Dakota
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Lake County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 11,059. Its county seat is Madison. The county was formed in 1873.
Lake County Court House
Madison, South Dakota
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Madison is a city in Lake County, South Dakota, United States. The population was 6,191 at the 2020 census. It is the county seat of Lake County and is home to Dakota State University.
Madison, South Dakota
Lake County Court House, shown on a c. 1940 postcard