According to the CDC's ADDM Network, about 1 in 31 children aged 8 (3.2 percent) has been identified with autism spectrum disorder.

Checked against its source on October 16, 2026

In the source's own words

“About 1 in 31 (3.2%) children aged 8 years has been identified with ASD according to estimates from CDC's ADDM Network.”

Data and Statistics on Autism Spectrum Disorder, Centers for Disease Control and Prevention (CDC), 2025, At a glance, Prevalence of ASD.

What it measures: ASD is autism spectrum disorder; ADDM is the Autism and Developmental Disabilities Monitoring Network. The estimate is for surveillance year 2022 (children born in 2014), from 16 sites, up from 1 in 36 in 2020. The CDC says ASD is over 3 times more common among boys than among girls.
What it does not show: Prevalence ranged widely across sites. Rising figures partly reflect better identification. The figure counts identification in records, not a population screening.