Fact · Accessibility and health
3 millionAmericans
Roughly 3 million Americans stutter; stuttering affects people of all ages and occurs most often in children aged 2 to 6.
Checked against its source on October 16, 2026
In the source's own words
“Roughly 3 million Americans stutter. Stuttering affects people of all ages. It occurs most often in children between the ages of 2 and 6 as they are developing their language skills.”
Stuttering, National Institute on Deafness and Other Communication Disorders (NIDCD), NIH, 2017, Who stutters?.
Open the original- What it measures
- NIDCD adds that about 75 percent of children who stutter recover, and for the remaining 25 percent stuttering can persist for life. Repetitions, prolonged sounds and blocks are what make stuttered speech hard for voice assistants and dictation, which may cut the speaker off or mis-transcribe.
- What it does not show
- A rounded estimate (about 1 percent of the population) without a stated survey year on the page.