Elm Township, Allen County, KansasElm Township is one of twelve townships in Allen County, Kansas, United States. As of the 2010 census, its population was 1,257.GeographyElm Township covers an area of. It contains one incorporated settlement and surrounds another, the governmentally independent city of La Harpe. According to the USGS, it contains two cemeteries: La Harpe and Saint Johns.Communities GasTransportationElm Township contains two airports or landing strips: Midway Air Park and National Airport.