How Many People Are Neurodivergent
Approximately 1 in 5 people in the UK is neurodivergent, including ADHD, autism, dyslexia, dyspraxia, dyscalculia and Tourette syndrome. Global prevalence is broadly similar.
Roughly one in five people is neurodivergent. The figure is widely cited for the UK and is broadly similar across many countries.
The total is made up of overlapping conditions rather than one. Common components include ADHD, autism, dyslexia, dyspraxia, dyscalculia, and Tourette syndrome, and many people meet criteria for more than one. Estimates vary by source and definition, which is why a single headline figure is more useful than false-precision percentages.
Self-identification has risen sharply in recent years as awareness and diagnosis improve, so the share of any audience that identifies as neurodivergent is trending up, not down.
For a product team the implication is simple. If one in five of your users processes information differently, a design that only works for neurotypical users is leaving a measurable part of your audience, and your revenue, behind.
