Obesity is an epidemic across the country, and according to a new report from the Trust for America's Health and the Robert Wood Johnson Foundation, it's at its worst in Mississippi. But the rest of America isn't far behind. Here, a brief guide, by the numbers:

Percent of adults who are obese in Mississippi, the fattest state in the union

Percent of adults who were obese in Mississippi 15 years ago. It was the fattest state then, too.

Percent of adults who are obese in Colorado, the least obese state

Michigan's ranking amongst the most obese states. It's the first state on the list above the Mason-Dixon line. "The highest obesity rates are in the South, large swaths of which are poor and rural, and where fried foods are eaten in abundance," says Katy Steinmetz at TIME.

Number of states where the adult obesity rate is above 30 percent

Number of states that had an adult obesity rate above 15 percent 15 years ago

Number of states that had an adult obesity rate over 30 percent four years ago. "It's not unlike with individuals," says Jeffrey Levi with Trust for America's Health. "You add a pound or two every year, and after 10 or 20 years, it becomes a significant thing, and that's sort of what the country has done."

Number of states where the obesity rate has gotten worse in the past year

Number where it has gotten better

190 million
Number of Americans who are overweight or obese, according to the report

Current population of the United States, according to the U.S. Census Bureau

Sources: NY Daily News, Reuters, TIME, U.S. Census Bureau