Union County is in North Central Florida. Of the 67 counties in the Everglade State, 159,841-acre Union County ranks 67th by size. There is nearly 1,000 acres of residential land and property for sale in Florida's Union County based on recent Land Network data. The combined market value of farms, rural land, hunting land and other land for sale here is approximately $5 million. The average price of residential acreage for sale in Union County was $323,257. Browse all residential land and rural property for sale in Florida 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.