Union County is in Piedmont North Carolina. Of the 100 counties in the Tar Heel State, Union County is 26th in terms of its size (639 square miles). A recent survey of Land Network data totals 1,000 acres of farms for sale in North Carolina's Union County, which is valued at a combined $3 million. The average price of farms for sale in Union County was $611,880. Farms for sale in Union County support livestock including horses, goats, cattle and sheep. Browse all North Carolina farms for sale on the Land Network to find the farm, cattle operation, hobby farm or other farm property that's right for your future commercial or individual needs.