FY 2017 RISP Infographics
How many people with intellectual or developmental disabilities live in the United States?
There were 7.4 million people with an intellectual or developmental disability in the United States in 2017. Of those, 20% or 1.5 million people were known to their state developmental disabilities agency. 17% or 1.3 million people received at least one long-term support or service in addition to case management.
Note: US IDD prevalance estimates from 1994/95 National Health Interview Survey (NHIS) Disability Supplement and the 2014 NHIS (Zablosky, 2015)
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