Adult obesity rates in the U.S. by ethnicity 2020. In 2020, black adults had the highest obesity rates of any race or ethnicity in the United States, followed by American Indians/Alaska Natives and Hispanics. As of that time, around 42 percent of all black adults were obese.
The dominant gender to be obese would be males due to the fact the "BBQ" role of being a man, Men are mostly known to be the ones to eat junk-food, or eating large unhealthy portions of food. However, there are eating disorders that can cause obesity.