“This is an important landmark,” said Roderick Harrison, a former chief of racial statistics at the Census Bureau who is now a sociologist at Howard University. “This generation is growing up much more accustomed to diversity than its elders.” The report comes as the Supreme Court prepares to rule on the legality of Arizona’s strict immigration law, with many states weighing similar get-tough measures. “We remain in a dangerous period where those appealing to anti-immigration elements are fueling a divisiveness and hostility that might take decades to overcome,” Mr. Harrison said.

“This is an important landmark,” said Roderick Harrison, a former chief of racial statistics at the Census Bureau who is now a sociologist at Howard University. “This generation is growing up much more accustomed to diversity than its elders.” The report comes as the Supreme Court prepares to rule on the legality of Arizona’s strict immigration law, with many states weighing similar get-tough measures. “We remain in a dangerous period where those appealing to anti-immigration elements are fueling a divisiveness and hostility that might take decades to overcome,” Mr. Harrison said.

White births in US no longer a majority