Allendale County is in Low Country South Carolina. Of the 46 counties in the Palmetto State, 412-square-mile Allendale County ranks 40th by size. South Carolina's Allendale County has around 1,000 acres of residential land for sale based on recent Land Network data. The combined market value of farms, rural land, hunting land and other land for sale here was almost $5 million. The average price of residential acreage for sale in Allendale County was $444,127. 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.