Jackson Township is one of sixteen townships in Calhoun County, Iowa, USA. As of the 2000 census, its population was 225.HistoryJackson Township was created in 1866. It is named for Andrew Jackson, seventh President of the United States.GeographyJackson Township covers an area of 33.73sqmi and contains no incorporated settlements. According to the USGS, it contains one cemetery, Cottonwood.