ADHD Incidence
There are 3 million people in the UK with ADHD
NHS England have estimates of ADHD in England. Showing 2,506,000 in England, of which 744,000 are children (5-24). [November 2025].
ADHD UK have used those figures to extrapolate for the Devolved Nations and UK as a whole.
Devolved Nations Total ADHD Population Estimates
Extrapolating the figures above for the devolved nations. Mid-2023 population data above is divided using the percentage split from ONS data on the devolved nation population sizes. The England figure is from NHS Digital’s data on NHS England’s ADHD Estimate. Then extrapolated by ADHD UK for the Devolved Nations based on their relative overall total population.
England’s ADHD population number NHS England’s ADHD Incidence Data. Devolved Nations population numbers are a simple extrapolation by ADHD UK using the ADHD Data for England and applying the same incidence rate.