Hanover Township is one of eighteen townships in Allamakee County, Iowa, USA. At the 2010 census, its population was 193. History Hanover Township was organized in 1855. Geography Hanover 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. References External links US-Counties.com City-Data.com Townships in Allamakee County, Iowa Townships in Iowa 1855 establishments in Iowa Populated places established in 1855