The annual inflow of unauthorized immigrants to the U.S. was nearly two-thirds smaller in the March 2007 to March 2009 period than it had been from March 2000 to March 2005.
There were 11.9 million unauthorized immigrants living in the United States in March 2008. The size of the unauthorized population appears to have declined since 2007.
Nearly all Hispanic adults born in the United States of immigrant parents report they are fluent in English. By contrast, only a small minority of their parents describe themselves as skilled English speakers.