One In Five U.S. Children Have A Parent-Reported Developmental Disability Diagnosis

Approximately one in five U.S. children ages 3 to 17 had a parent-reported developmental disability diagnosis in 2023–2024, up from about one in six in 2019–2020. The prevalence increased from 16.7% to 20.5% during that period, a 22.2% increase. The increase included significant growth in diagnoses of autism spectrum disorder (ASD), attention-deficit/hyperactivity disorder (ADHD), learning disabilities, and other developmental delays.

Between 2019–2020 and 2023–2024, the prevalence of the developmental disabilities included in the study changed as follows:

ASD: Increased 42.4%, from 3.1% to 4.5%

ADHD: Increased . . .