Land for sale in Robertson County recently totaled around $5 million and nearly 1,000 acres. Robertson County ranks 119th out of 120 counties in the Bluegrass State for the total acreage of land currently advertised for sale. Among cities in Robertson County with farms and ranches for sale, Mount Olivet featured the most land for sale. From an economic perspective, government and state-level services contribute most to Robertson County's overall GDP. Robertson County is the 120th largest county (100 square miles) in Kentucky. It's located in the North Central Kentucky region of the state.