Births have overtaken immigration as the driving force behind the growth of the Mexican-American population in the United States in the past decade, according to a report released Thursday by the Pew Hispanic Center.
The same can be said for the entire Hispanic population of the United States, which grew from 35.3 million in 2000 to 50.5 million in 2010, accounting for 16.3% of the U.S. population, according to U.S. Census Bureau data. About 58% of that growth resulted from births rather than the arrival of new immigrants, the report says.
The trend is most evident among Mexican-Americans, whose numbers grew by 7.2 million as a result of births and 4.2 million from new immigrant arrivals in the past decade, reversing trends from the previous two decades, when the number of new immigrants matched or exceeded the number of births, the report says.
Mexican-Americans are the nation's largest Hispanic group, at around 31.8 million, or 63% of the U.S. Hispanic population and 10% of the total U.S. population.