Hayes Township, Clay County, KansasHayes Township is a township in Clay County, Kansas, United States. As of the 2000 census, its population was 206.GeographyHayes Township covers an area of and contains no incorporated settlements. According to the USGS, it contains four cemeteries: Brethren in Christ, Greenwood, Hayes and Pleasant Hill.TransportationHayes Township contains one airport or landing strip, Holmes Airpark.