Of 105 counties in the Sunflower State, Clay County is 73rd in terms of its size (655 square miles). Clay County is in Tallgrass Prairie Kansas. There is approximately 1,000 acres of recreational land for sale in Kansas's Clay County based on recent Land Network data. The combined market value of farms and ranches for sale here is about $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 undeveloped land.