Updated June 2021: The rate of obesity has declined among children ages 2 to 4 enrolled in the Special Supplemental Nutrition Program for Women, Infants and Children (WIC). From 2010 to 2018, the national rate of obesity dropped from 15.9% to 14.4%. The decline was statistically significant among all racial and ethnic groups studied: American Indian/Alaska Native, Asian/Pacific Islander, black, Hispanic, and white.
The map below highlights the most recent state-level data. From 2010 to 2018, the obesity rate among WIC participants ages 2-4 decreased in 31 states and territories and increased in seven. In 2018, obesity rates ranged from a low of 8.5% in Utah to a high of 20.2% in Alaska.