According to a Census Bureau Current Population Report on Americans with Disabilities issued in July 2012, approximately 56.7 million people (18.7 percent) of the in the civilian non-institutionalized population in 2010 had a disability. About 38.3 million people (12.6 percent) had a severe disability. For information by congressional district, county, town, and more explore http://www.census.gov/people/disability In addition, www.disabilitystatistics.org includes detailed information on dozens of national level disability data sources