USDA: 6,501 ‘Food Deserts’ Are Spread Across Most of U.S. Mainland

USDA: 6,501 ‘Food Deserts’ Are Spread Across Most of U.S. Mainland CNSnews.com
"In general, a food desert exists where low-income people must travel more than 1 mile in urban communities and 10 miles in rural communities to access retailers that have fresh fruits and vegetables and other healthy food offerings."

http://www.ers.usda.gov/data/fooddesert/fooddesert.html