D’Vera Cohn

The flow of immigrants from Mexico to the United States has declined sharply since mid-decade, but there is no evidence of an increase during this period in the number of Mexican-born migrants returning home from the U.S.

Most Americans have moved to a new community at least once in their lives, although a notable number — nearly four-in-ten — have never left the place in which they were born.

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.

More than one-fourth of Hispanic adults in the United States lack a usual health care provider, and a similar proportion report obtaining no health care information from medical personnel in the past year.

If current trends continue, immigrants arriving from 2005 to 2050 and their descendants will account for 82% of the population growth in the United States during this period, according to new projections from the Pew Research Center.

If current trends continue, the population of the United States will rise to 438 million in 2050, from 296 million in 2005, and 82% of the increase will be due to immigrants arriving from 2005 to 2050 and their U.S.-born descendants.

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.

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.