An estimated 7 million children and 15.5 million adults in the United States have ADHD, bringing the total to roughly 22 to 23 million people. Those numbers come from the two most recent national surveys: a 2022 parent-reported survey for children and a 2023 self-report survey for adults. Both figures represent significant increases from estimates just a decade ago.
Children With ADHD
About 11.4% of U.S. children ages 3 to 17 have received an ADHD diagnosis at some point, based on 2022 CDC data. That translates to roughly 7 million kids. The rate is notably higher among older children: 17% of white children ages 12 to 17 have been diagnosed, compared with about 10% of children ages 5 to 11 in the same group. This pattern holds across racial groups, likely reflecting the fact that ADHD symptoms often become more disruptive (and more noticed) once schoolwork and social demands increase.
Diagnosis rates also vary by race and ethnicity. Among children ages 5 to 17, white non-Hispanic children have the highest reported rate at 13.4%, followed by Black non-Hispanic children at 10.8% and Hispanic children at 8.9%. These gaps likely reflect differences in access to evaluation and cultural attitudes toward diagnosis rather than true differences in how often ADHD occurs.
Adults With ADHD
For a long time, ADHD was treated primarily as a childhood condition. That view has shifted dramatically. A 2023 CDC survey found that 15.5 million U.S. adults (6.0%) currently have an ADHD diagnosis. An earlier national study put the lifetime prevalence for adults 18 to 44 at 8.1%, meaning a meaningful share of people who met criteria at some point may no longer carry a current diagnosis or may never have been formally evaluated.
Men are diagnosed more often than women, with rates of about 5.4% versus 3.2% in adults. That gap has been narrowing over time as clinicians have gotten better at recognizing how ADHD presents in women, where symptoms tend to lean more toward inattention than hyperactivity.
Diagnosis Rates Have Roughly Doubled Since the Late 1990s
The upward trend is striking. In 1997, when the CDC first started tracking parent-reported ADHD diagnoses in children, the rate was 5.5%. By 2008 it had climbed to 8.1%. By 2018 it reached 9.8%. The most recent figure of 11.4% in 2022 continues that trajectory. Whether the increase reflects better screening, broader diagnostic criteria, greater public awareness, or a genuine rise in the condition is still debated, but most experts point to a combination of all four.
The adult numbers tell a similar story. The jump from 4.4% in earlier national estimates to 6.0% in 2023 represents millions of additional diagnoses. The COVID-19 pandemic appears to have accelerated this: remote work stripped away the external structures many adults relied on to manage undiagnosed ADHD, and the resulting struggles pushed a wave of people toward evaluation for the first time.
Wide Variation Across States
Where you live in the U.S. significantly affects how likely a child is to receive an ADHD diagnosis. Louisiana and Mississippi have the highest rates, with 15.2% of children carrying a current diagnosis. South Carolina follows at 14.6%. At the other end, California sits at just 5.6%, Hawaii at 6.1%, and Nevada at 7.0%. That’s nearly a threefold difference between the highest and lowest states.
These gaps don’t mean ADHD is three times more common in the South. They reflect regional differences in screening practices, insurance coverage, school-based referral systems, and cultural norms around behavioral health. States with higher diagnosis rates also tend to have higher treatment rates, suggesting more established pipelines from concern to evaluation.
Treatment Patterns
Among adults who visit health centers for ADHD, about 55% have a prescription for ADHD medication on file. Stimulant medications are far more common than non-stimulants: roughly 42% of adult ADHD-related visits involve an amphetamine-based prescription, while about 9% involve methylphenidate-based options. Non-stimulant medications are used at much lower rates, appearing in about 6% of visits.
That means close to half of adults seen at health centers for ADHD are managing the condition without medication, relying on behavioral strategies, therapy, coaching, or simply going untreated. The actual share of all adults with ADHD who take medication is likely lower, since many people with a diagnosis never seek regular care for it.
The Economic Toll
ADHD carries a substantial financial burden. One widely cited estimate from Tufts Medical Center put the total annual cost at $143 billion to $266 billion in the U.S. Most of that, between $105 billion and $194 billion, comes from adults, primarily through lost productivity and reduced income. For children, the biggest costs fall on healthcare ($21 billion to $44 billion) and education ($15 billion to $25 billion). Family members absorb an additional $33 billion to $43 billion in spillover costs, including lost work time, stress-related health problems, and caregiving demands. Those figures are from 2010 dollars and would be considerably higher adjusted for inflation today.