Butler Township is one of sixteen townships in Calhoun County, Iowa, USA. As of the 2000 census, its population was 950.HistoryButler Township was created in 1871.GeographyButler Township covers an area of 35.6sqmi and contains two incorporated settlements: Jolley and Pomeroy. According to the USGS, it contains three cemeteries: Crown Hill, Saint Marys and Union.