Hanover Township, Allamakee County, IowaHanover Township is one of eighteen townships in Allamakee County, Iowa, USA. At the 2010 census, its population was 193.HistoryHanover Township was organized in 1855.GeographyHanover Township covers an area of and contains no incorporated settlements. According to the USGS, it contains three cemeteries: Iowa River, O'Hare Place and Saint Patricks.