Nearly two-thirds of the 10.2 million unauthorized adult immigrants in the United States have lived in this country for at least 10 years and nearly half are parents of minor children.
Births have surpassed immigration as the main driver of the dynamic growth in the nation's Mexican-American population. From 2000 to 2010, the Mexican-American population grew by 7.2 million as a result of births and 4.2 million as a result of new immigrant arrivals.
The 2010 Census counted 50.5 million Hispanics in the United States, making up 16.3% of the total population. The nation's Latino population, which was 35.3 million in 2000, grew 43% over the decade.
This statistical profile of the foreign-born population is based on Pew Hispanic Center tabulations of the Census Bureau's 2009 American Community Survey.
As of March 2010, 11.2 million unauthorized immigrants were living in the United States, virtually unchanged from a year earlier, according to new estimates from the Pew Hispanic Center.