Falls Township, Chase County, KansasFalls Township is a township in Chase County, Kansas, United States. As of the 2000 census, its population was 1,163.GeographyFalls Township covers an area of. The streams of Buck Creek, South Fork Cottonwood River, Spring Creek and Stout Run run through this township.CommunitiesThe township contains the following settlements: City of Cottonwood Falls.CemeteriesThe township contains the following cemeteries: Miller. Prairie Grove.TransportationFalls Township contains one airport or landing strip, Chase County Airport.