The darker the color, the larger the proportion of the population that is obese. In the darkest brown counties, more than 30 percent of people are obese, according to 2008 data. CDC hide caption toggle caption CDC Shots - Health News Latest Figures On Obesity Paint An Uglier Picture July 19, 2011 The most worrisome aspect of the latest data is an animated map from the CDC that shows how obesity rates have climbed since 1985. In the mid-'90s, all the states were various shades of blue, meaning none had an obesity rate greater than 19 percent. By 2010, not a single state was blue anymore.