The leading producer of tart cherries is Michigan, producing 70 to 75 percent of the crop each year. Utah grows about 8 percent of the crop, New York, about 5 percent, Wisconsin, 4 percent. Washington, Oregon and Pennsylvania also have commercial crops of tart cherries. The amount of tart cherries produced each year varies, depending on a number of factors, including the age of the trees and weather conditions. Generally, Michigan produces 200 to 250 million pounds of tart cherries; the U.S. crop is 275 to 350 million pounds.