Jefferson County is in Capital River Mississippi. Of the 82 counties in the Magnolia State, 527-square-mile Jefferson County ranks 47th by size. There is almost 1,000 acres of residential land and property for sale in Mississippi's Jefferson County based on recent Land Network data. The combined market value of land for sale here is almost $1 million. The average price of residential acreage for sale in Jefferson County was $234,231. Browse all residential land and rural property for sale in Mississippi 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.