2021 Community Report on Autism

Autism and Developmental Disabilities Monitoring (ADDM) Network

A Snapshot of Autism Spectrum Disorder among 8-year-old and 4-year-old Children in Multiple Communities across the United States in 2018

Funded by the Centers for Disease Control and Prevention (CDC), United States Department of Health and Human Services

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2021 Community Report cover - Little boy watching father blow bubbles with wand

This community report summarizes the main findings from the following published reports:

Maenner MJ, Shaw KA, Bakian AV, et al. Prevalence and Characteristics of Autism Spectrum Disorder Among Children Aged 8 Years — Autism and Developmental Disabilities Monitoring Network, 11 Sites, United States, 2018. MMWR Surveill Summ 2021, 70 (No. SS-11): 1-16.

Shaw KA, Maenner MJ, Bakian AV, et al. Early Identification of Autism Spectrum Disorder Among Children Aged 4 Years — Autism and Developmental Disabilities Monitoring Network, 11 Sites, United States, 2018. MMWR Surveill Summ 2021, 70 (No. SS-10): 1-14.

To read the full scientific reports, please go to www.cdc.gov/mmwr

To read more about autism spectrum disorder, please visit CDC’s Autism Homepage at www.cdc.gov/autism

The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention.