Of 105 counties in the Jayhawk State, Clay County ranks 73rd in terms of size (655 square miles). Clay County is in Tallgrass Prairie Kansas. A recent survey of Land Network data shows almost 1,000 acres of ranches for sale in Kansas's Clay County, which is valued at a combined $112,650. Browse all Clay County ranches for sale on the Land Network to find the ranch that's right for your business or commercial needs, from the sprawling legacy ranch to unbelievable residential ranch for your second home, investment property or retirement nest egg. The most common type of land for sale by combined acreage in Clay County is residential property.