The value of all farms and rural land for sale in Clay County recently was $168 million, representing a total of 6,075 acres of land for sale in Clay County. Clay County ranks 34th out of 67 counties in the Sunshine State for the combined amount of land currently advertised for sale. There were two properties listed as sold in Clay County through the Land Network Comparable Sales Program. This represented a total value of $570,000. Of all farms and rural real estate for sale in Clay County, Keystone Heights featured the most land for sale. Clay County is the 48th largest county (643 square miles) in Florida. It's located in the Northeast Florida region of the state.