[5] In December 1822, missionary Isaac McCoy moved his family and 18 Indian students from Indiana to the St. Joseph River near present-day Niles, Michigan, to open a religious mission (the Carey Mission) to the Potawatomi Indians, 160 km from the nearest White settlement.[6] In 1827 St. Joseph Township was organized as part of Wayne County, It included all lands acquired from the Native Americans by the 1821 Treaty of Chicago.The boundary of Berrien County was delineated by the Michigan Territory Legislature on October 29, 1829, with its present limits.For purposes of revenue, taxation and judicial matters, it was attached to Cass County, and was designated as Niles Township.It has earned multiple nicknames in this capacity, including "Harbor Country" and "the Hamptons of the Midwest", with the latter recognized by the Wall Street Journal.In Michigan, most local government functions — police, fire, building and zoning, tax assessment, street maintenance, etc.[19] The county borders the state of Indiana to the South and includes a portion of Lake Michigan to the West.
The Pokagon reservation with underlying local municipal boundaries