The value of farms, ranches, and rural real estate for sale in Hart County recently on Land.com was $55 million. This represents approximately 3,000 acres of farms, ranches, and rural real estate for sale in Hart County. Hart County ranks 43rd in the state for the total acreage of land currently advertised for sale. Munfordville had the most land for sale. From an economic perspective, manufacturing and related services are the main sectors in Hart County. Hart County is Kentucky's 30th biggest county (417 square miles). It's located in the South Central Kentucky region of Kentucky.