Waterloo Township, Allamakee County, IowaWaterloo Township is one of eighteen townships in Allamakee County, Iowa, USA. At the 2010 census, its population was 266.HistoryWaterloo Township was organized in 1856.GeographyWaterloo Township covers an area of and contains no incorporated settlements. It contains the unincorporated community of Dorchester. According to the USGS, it contains four cemeteries: Saint Johns, Saint Marys, Waterloo Ridge and West Waterloo Ridge.