Births have overtaken immigration as the main driver of the dynamic growth in the U.S. Hispanic population. This new trend is especially evident among the largest of all Hispanic groups -- Mexican-Americans,1 according to a new analysis of U.S. Census Bureau data by the Pew Hispanic Center, a project of the Pew Research Center.
In the decade 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. This is a change from the previous two decades when the number of new immigrants either matched or exceeded the number of births.
The current surge in births among Mexican-Americans is largely attributable to the immigration wave that has brought more than 10 million immigrants to the United States from Mexico since 1970. Between 2006 and 2010 alone, more than half (53%) of all Mexican-American births were to Mexican immigrant parents. As a group, these immigrants are more likely than U.S.-born Americans to be in their prime child-bearing years. They also have much higher fertility.
Read the full report, The Mexican-American Boom: Births Overtake Immigration, on the Pew Hispanic Center's Web site.