Union Prairie Township, Allamakee County, IowaUnion Prairie Township is one of eighteen townships in Allamakee County, Iowa, USA. At the 2010 census, its population was 761.HistoryUnion Prairie Township was organized in 1852.GeographyUnion Prairie Township covers an area of and contains no incorporated settlements. According to the USGS, it contains three cemeteries: Eells Plot, Mount Olivet and West Ridge.