Australian Autism ADHD Foundation
Supporting independent research, education and advocacy to improve understanding of autism and ADHD.
In 2003, about 30,400 Australians had a diagnosis of autism. By 2022 this had risen to about 290,900, or 1.1% of the population (ABS).
In the United States, about 1 in 31 eight-year-old children now has an autism diagnosis (CDC, 2025).
ADHD is one of the most common neurodevelopmental conditions of childhood.
Researchers are still working to understand why diagnoses have risen. Broader diagnostic criteria and greater awareness explain part of the increase, and more research is needed.
With each affected child, parents, siblings and close family are also affected, profoundly and in ways that only those who live through it can understand.
The Foundation relies on donations to support independent research, education and advocacy. Every gift, large or small, makes a difference. Donations of $2 or more are tax deductible.