Updated June 2019: The rate of obesity has declined among 2- to 4-year-olds enrolled in the Special Supplemental Nutrition Program for Women, Infants and Children (WIC). From 2010 to 2016, the national rate of obesity dropped from 15.9% to 13.9%. 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 2014, the obesity rate among WIC participants ages 2-4 decreased in 31 states and three territories, increased in four states and remained stable in the rest. In 2014, obesity rates exceeded 15% in 18 states and ranged from a low of 8.2% in Utah and a high of 20.0% in Virginia.