Dyslexia by the Numbers

By Emily Lapkin

188Found this helpful

Dyslexia is quite common. Here are some basics about dyslexia, including how often it co-occurs with ADHD.

188Found this helpful
Dyslexia by the Numbers

Dyslexia is well known, but how common is it? Here are some key facts about dyslexia, which primarily aects kids’ ability to read.

Dyslexia affects people of all backgrounds and intelligence levels.

Dyslexia is the most common learning disability.

As many as 17% of U.S. schoolchildren may have dyslexia.

As many as 85% of students with learning disabilities have dyslexia alone or with other conditions.

Dyslexia is only slightly more common in males, but schools identify boys with dyslexia twice as often.

Approximately 15% of students with dyslexia also have ADHD.

Roughly a third of students with ADHD also have dyslexia.

Dyslexia can occur with no family history, but 40% of people with dyslexia will have a sibling, child or parent with the same challenges.
Graphic of Dyslexia by the Numbers
Graphic of Dyslexia by the Numbers

About the Author

Expert Avatar Graphic

Reviewed by

Portrait of Bob Cunningham

Bob Cunningham, Ed.M., serves as advisor-in-residence on learning and attention issues for Understood.

Did you find this helpful?

What’s New on Understood