General

Key Autism Statistics (2025 CDC Data)

Overall Prevalence: Approximately 1 in 31 (3.2%) 8-year-old children in the U.S. are identified with autism spectrum disorder (ASD), reflecting a rising trend from 1 in 36 in 2020.

Prevalence by Sex: Boys are diagnosed 3.4 times more frequently than girls (49.2 per 1,000 boys vs. 14.3 per 1,000 girls).

Prevalence by Age: About 1 in 34 (2.9%) 4-year-olds are diagnosed, with early identification often occurring around 36 months of age.
Trends: There has been nearly a 300% increase in autism prevalence over the past 20 years.

Demographics: Autism diagnosis rates vary by race and ethnicity, with the lowest prevalence among white children (2.7%) and the highest among American Indian/Alaska Native and Asian/Pacific Islander children (3.8%).

Regional Variation: Diagnosis rates vary widely by location, from as low as 1 in 103 (1.0%) in some areas to as high as 5.3% in others, such as California.

Education and Diagnosis Insights

Among 8-year-olds identified with ASD, 68.4% have a documented diagnostic statement.

Approximately 74% of autistic students graduate with a high school diploma, while 19% receive a certificate.

Among children aged 3–17, about 17% have a diagnosed developmental disability, including autism, ADHD, or intellectual disabilities.

Global Context

According to the World Health Organization (WHO), autism affects roughly 1 in 100 children globally.

The rise in autism identification is largely due to better screening tools, increased awareness, and improved diagnostic practices.

Notably, over 1% of girls are identified with autism worldwide.

We believe addressing these issues through better training, resources, and policy changes will create more positive outcomes.