Fairfield County is in Midlands South Carolina. Of the 46 counties in the Palmetto State, 709-square-mile Fairfield County ranks 19th by size. A recent survey of Land Network data totals 1,000 acres of residential land for sale in South Carolina's Fairfield County, which is valued at a combined $27 million. The average price of residential land for sale in Fairfield County was $531,988. Browse all residential land and rural property for sale in South Carolina to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.