Colorado, Hawaii, and Utah had the lowest obesity levels in the United States in 2010, although at least 2 in 10 adults were obese in each of these states. West Virginia, Mississippi, and Kentucky had the highest obesity rates, with more than 3 in 10 obese residents living in these states. The prevalence of obesity is nearly eight percentage points higher, on average, in the 11 states with the highest obesity levels compared with the 10 states with the lowest obesity levels — 30.5% vs. 22.6%, respectively.