FY 2017 RISP Infographics
How many people with intellectual or developmental disabilities live in the United States?
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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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