Prophetstown Township is located in Whiteside County, Illinois, United States. As of the 2010 census, its population was 2,615 and it contained 1,162 housing units. Geography According to the 2010 census, the township has a total area of , of which (or 98.93%) is land and (or 1.07%) is water. Demographics References External links Townships in Whiteside County, Illinois Townships in Illinois