Survey: Skinniest U.S. state is...

In 2011, 39 states had obesity rates of over 25 percent, and 12 had obesity rates over 30 percent. The highest obesity rate was in Mississippi, in which 34.9 percent of the population is obese.

Obesity rates were high in the South in general, with about 30 percent of people in that region qualifying as obese. In the Midwest, the rate was 29 percent, followed by the Northeast at 25 percent, and the West at 24 percent.