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

Over the past two decades, autism diagnoses have risen significantly. In 2000, about 1 in 150 children in the U.S. were identified with Autism Spectrum Disorder (ASD). Today, that number is closer to 1 in 36 children, reflecting a sharp increase in prevalence.

But does this mean autism itself is more common? Experts suggest the rise is largely due to better awareness, improved screening, and expanded diagnostic criteria. Families, educators, and healthcare providers are now more equipped to recognize early signs of autism, leading to earlier and more accurate diagnoses. While environmental and genetic factors may also play a role, the biggest driver of this increase is improved identification rather than a sudden surge in cases.

For parents and professionals, this shift highlights the importance of access to effective support like Applied Behavior Analysis (ABA) therapy. ABA helps children with autism build communication, social, and daily living skills, ensuring they thrive in school and at home.

At Milestone Achievements, we provide personalized ABA therapy programs in Georgia that empower families and children. 

Learn how we can support your child’s growth. Contact us today!

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SOURCE:

https://my.clevelandclinic.org/health/treatments/25197-applied-behavior-analysis

https://www.reddit.com/r/ABA/comments/1el59kp/please_explain_what_aba_therapy_is/

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

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

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