Original: Also, HUD reported the number of chronically homeless people (those with repeated episodes or who have been homeless for long periods, 2007 data) as 123,833. 82% of the homeless are not chronically homeless, and 18% are (6% Chronically Homeless Sheltered, 12% Chronically Homeless Unsheltered).
Simplified: (HUD) defines a "chronically homeless" person as "an unaccompanied homeless individual with a disabling condition".