Of all students receiving special education services under the Individuals with Disabilities Education Act (IDEA), 33 percent have a specific learning disability, defined as an imperfect ability to listen, think, speak, read, write or spell. Another 19 percent have a speech or language impairment.
Source: “Students with Disabilities,” National Center for Education Statistics, last updated May 2021, https://tinyurl.com/3rhuph72
Data for the graphic are as follows:
|Specific learning disability||33%|
|Speech or language impairment||19%|
|Other health impairment||15%|