Brothertown Harbor is located on Lake Winnebago approximately eight miles south of Stockbridge. This facility has been operated and maintained by the Calumet County Parks Department since 2005.
In 2009, the launch was remodeled. This included dredging of the harbor, three new wider launch lanes, paving of the entire parking area, a new breakwater, new area lighting, navigational aid and installation of a permanent pit toilet. In 2016 additional land was purchased to expand the parking area and add a playground. This addition brought the total size of the Brothertown Harbor facility to a total of 9 acres.