Is Autism More Common Today Than It Was 20 Years Ago?

Yes, autism is more commonly diagnosed today than it was two decades ago. In 2000, the Centers for Disease Control and Prevention (CDC) estimated that about 1 in 150 children were identified with autism spectrum disorder (ASD). By 2020, that number had risen to 1 in 36 children, and the most recent data shows prevalence continuing to increase.

Why the rise? Experts point to several factors. First, greater awareness among parents, educators, and healthcare providers means more children are screened earlier. Second, expanded diagnostic criteria now capture a wider range of developmental differences. Third, improved access to services has encouraged families to seek evaluations. While genetics and environmental influences may also play a role, the biggest driver appears to be better recognition and reporting.

For families, this increase highlights the importance of early intervention. ABA therapy remains one of the most effective, evidence‑based approaches to supporting children with autism in communication, social skills, and independence.

At Admire ABA, we provide compassionate, individualized ABA therapy in Maryland to help children thrive. 

Discover how our team can support your family. Contact us today!

SOURCES:

https://publichealth.jhu.edu/2025/is-there-an-autism-epidemic

https://publichealth.jhu.edu/2025/is-there-an-autism-epidemic

https://www.cdc.gov/autism/data-research/index.html

https://pubmed.ncbi.nlm.nih.gov/1828000/

https://www.bbc.com/future/article/20250509-why-autism-diagnoses-are-on-the-rise