Chatham Township is a suburban township located in Morris County, in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 10,983, its highest decennial count ever and an increase of 531 (+5.1%) from the 10,452 recorded at the 2010 census, which in turn reflected an increase of 366 (+3.6%) from the 10,086 counted in the 2000 census. The long-established hamlet of Green Village is located in Chatham Township.