Long Lake Township, officially the Charter Township of Long Lake is a charter township of Grand Traverse County in the U.S. state of Michigan. The population was 9,956 at the 2020 census which is up from 8,662 at the 2010 census and 7,648 at the 2000 census. Long Lake Township is very suburbanized due to its location near Traverse City. It is one of three charter townships in Grand Traverse County, the others being East Bay Township and neighboring Garfield Township. The township is centered around the eponymous Long Lake.