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. The Hispanic population also accounted for most of the nation's growth—56%—from 2000 to 2010.
Among children ages 17 and younger, there were 17.1 million Latinos, or 23.1% of this age group, according to an analysis by the Pew Hispanic Center, a project of the Pew Research Center. The number of Latino children grew 39% over the decade. In 2000, there were 12.3 million Hispanic children, who were 17.1% of the population under age 18.
Although the numerical growth of the Hispanic population since 2000—more than 15 million—surpassed the totals for the previous two decades, the growth rate of 43% was somewhat slower than previous decades. Growth rates topped 50% in the 1980s (53%) and 1990s (58%).
Read the full report Hispanics Account for More than Half of Nation’s Growth in Past Decade on the Pew Hispanic Center's Web site.