The overall value of land for sale in Mercer County, Kentucky, recently on Land.com was almost $41 million. This represents nearly 1,000 acres of ranches, farms, hunting land and other rural land and acreage for sale in Mercer County. Mercer County ranks 46th out of 120 counties in the state for the combined amount of land currently advertised for sale. Among cities in Mercer County with land for sale, Harrodsburg had the most land for sale. From an economic perspective, manufacturing and related services are the main sectors in Mercer County. Mercer County is Kentucky's 88th biggest county (253 square miles). It's located in the North Central Kentucky region of the state.