FY 2018 RISP Infographics

How many people in the United States have IDD?

7.43 million people in the United States had IDD in 2018. 21% or 1.55 million people were known to or served by state IDD agencies. 18% or 1.31 million recieved long-term supports and services.

There were 7.43 million people with an intellectual or developmental disability in the United States in 2018. Of those, 20% or 1.55 million people were known to their state developmental disabilities agency.  18% or 1.31 million people received at least one long-term support or service in addition to case management.


Note: US prevalence estimates for adults are from 1994/95 National Health Interview Survey (NHIS) Disability Supplement. Prevalence (Larson, et al., 2001). Estimates for children are from the 2016 NHIS (Zablotsky et al., 2017).

For more information about RISP, contact: risp@umn.edu

Cite as: Residential Information Systems Project (year). [Page Name]. Minneapolis: University of Minnesota, RISP, Research and Training Center on Community Living, Institute on Community Integration. Retrieved from: https://risp.umn.edu.)