According to a national 2016 survey, the estimated number of children ever diagnosed with ADHD is 6.1 million (9.4%). This number includes:

• 388,000 children aged 2-5 years.
• 2.4 million children aged 6-11 years.
• 3.3 Million children aged 12-17 years.

This study also identified that the estimated number of children currently diagnosed with ADHD is approximately 5.4 million (8.4%), including:

• 335,000 children aged 2-5 years.
• 2.2 million children aged 6.11 years.
• 2.9 million children aged 12-17 years.

According to the same survey, 6 in 10 children with ADHD had at least one mental, emotional, or behavioral disorder in addition to an ADHD diagnosis:

• About 5 in 10 children with ADHD had a behavior or conduct problem.
• About 3 in 10 children with ADHD had anxiety.