Liberty Township, Decatur County, KansasLiberty Township is a township in Decatur County, Kansas, United States. As of the 2000 census, its population was 48.GeographyLiberty Township covers an area of and contains no incorporated settlements. The county seat of Oberlin sits on the township's southeastern border.TransportationLiberty Township contains two airports or landing strips: Oberlin Municipal Airport and R and D Aerial Spraying Airport.