Of the 275,500 new interracial marriages in 2010, 43 percent were white-Hispanic couples, 14.4 percent were white-Asian, 11.9 percent were white-black, and the remainder were other combinations.
Still, the share of Asians who intermarried has actually declined recently - from 30.5 percent in 2008 to 27.7 percent in 2010.
The Pew study also tracks some divorce trends, citing studies using government data that found overall divorce rates higher for interracial couples.
One study conducted a decade ago determined that mixed-race couples had a 41 percent chance of separation or divorce, compared to a 31 percent chance for those who married within their race.
(In 2000, Alabama became the last state to lift its unenforceable ban on interracial marriages.) About 83 percent of Americans say it is "all right for blacks and whites to date each other," up from 48 percent in 1987.
As a whole, about 63 percent of those surveyed say it "would be fine" if a family member were to marry outside their own race.
"In the past century, intermarriage has evolved from being illegal, to be a taboo and then to be merely unusual.