Percentage of the U.S. population enrolled in pre-K, by age group 2002-2020
In 2020, the enrollment of U.S. 4-year-olds enrolled in pre-kindergarten stood at 34 percent, while the enrollment of 3-year-olds stood at six percent. The percentage of 3- and 4-year-olds enrolled in pre-K has stayed increased since 2002.