A total of approximately 1,000 acres were listed for sale in Boone County, Kentucky, recently, representing a combined approximately $32 million in Boone County ranches, farms, hunting land and other rural land and acreage for sale. Boone County ranks 91st in the Bluegrass State for the total number of acres of land currently advertised for sale. Of all land and rural real estate for sale in Boone County, Union featured the most land for sale. Boone County is the 84th largest county (256 square miles) in Kentucky. It's located in the North Central Kentucky region of Kentucky.