Of 105 counties in the Sunflower State, Clay County ranks 73rd in terms of size (655 square miles). Clay County is in Tallgrass Prairie Kansas. The total value of nearly 1,000 acres of recreational land recently listed for sale in Clay County, Kansas, was nearly $600,000. Browse all recreational property for sale in Clay County to find the recreational tract that suits your lifestyle needs, from hunting and fishing properties for the outdoor enthusiast to undeveloped acreage ready for future residential-property development. The most common type of land for sale by combined acreage in Clay County is residential property.