Autism Facts and Figures

•  About 1 in 88 children has been identified with an autism spectrum disorder (ASD) according to estimates from CDC's Autism and Developmental Disabilities Monitoring (ADDM) Network.

•  ASD is reported to occur in ALL racial, ethnic, and socioeconomic groups.

•  ASDs are almost 5 times more common among boys (1 in 54) than among girls (1 in 252).

•  Studies in Asia, Europe, and North America have identified individuals with an ASD with an average prevalence of about 1%. 2.64% of South Korean children aged 7 to 12 have autism spectrum disorders.

•  About 1 in 6 children in the U.S. had a developmental disability in 2006-2008, ranging from mild disabilities such as speech and language impairments to serious developmental disabilities, such as intellectual disabilities, cerebral palsy, and autism.

•  Two-thirds of ASD cases in the study results above are in the mainstream school population, undiagnosed and untreated. These findings suggest that rigorous screening and comprehensive population coverage are necessary to produce more accurate ASD prevalence estimates and underscore the need for better detection, assessment, and services.