Union County is in Hills Mississippi. Of the 82 counties in the Magnolia State, Union County ranks 72nd in terms of size (416 square miles). A recent survey of Land Network data records around 1,000 acres of timberland for sale in Mississippi's Union County, which is valued at a combined $706,900. The average price of timberland for sale in Union County was $176,725. Browse all Mississippi forest and timberland for sale on the Land Network to find the right timberland acreage for your commercial or individual investment needs.