Lincoln County, located in southeastern South Dakota, was incorporated December 30, 1867. It includes an area of 576 square miles and population of 44,828 at last census. Lincoln County, the fastest growing county in South Dakota, now ranks as the third largest county. The Lincoln County Courthouse has marked the center of Canton, the county seat, for many years. The first Courthouse was erected and donated to Lincoln County in 1875 by the Canton Building and Improvement Association.
