Jefferson Township is one of eighteen townships in Allamakee County, Iowa, USA. At the 2010 census, its population was 607. History Jefferson Township was organized in 1852. Geography Jefferson Township covers an area of and contains no incorporated settlements. According to the USGS, it contains six cemeteries: Dundee Plot, Ebenezer, Evergreen, Independent Order of Odd Fellows, Nelson Plot and Rossville. References External links US-Counties.com City-Data.com Townships in Allamakee County, Iowa Townships in Iowa 1852 establishments in Iowa Populated places established in 1852