A total of 50,900 Acres of pumpkins were harvested in the U.S. in 2013. Which had an estimated value of $149.9 million. Illinois was the leading producer of pumpkins in the country, with an estimated 547.6 million pounds of this vined gourd
Source: U.S. Department of Agriculture, National Agricultural Statistics Service, Page 9 and 38
http://usda.mannlib.cornell.edu/usda/current/VegeSumm/VegeSumm-03-27-2014.pdf