Question: The fair that features organic food in Unity, Maine takes place in which county? 

Related documents: [0]  [DOC] The Common Ground Country Fair is a fair in Unity, Maine sponsored by the Maine Organic Farmers and Gardeners Association (MOFGA). The fair began in 1977 in Litchfield, Maine. In 1981, it moved to Windsor, Maine and in 1996, MOFGA purchased 200 acres in Unity, Maine, where the fair now takes places yearly. The fair "celebrates organic living, farming and growing," and all the food sold at the event must be organic. The fair regularly hosts 50,000 to 60,000 people. [END] 
[1]  [DOC] Unity is a town in Waldo County, Maine, United States. The population was 2,099 at the 2010 census. The town is the service center for the northern portion of Waldo County. Outside of Waldo county, it is best known as the home of the Maine Organic Farmers and Gardeners Association, its Common Ground Country Fair and Unity College. Unity College was founded in 1965 to offset the economic effects of the declining chicken farming industry. As of 2007, the college is the town's largest employer. [END]  
Answer: Waldo County
Waldo County