By 2050, will our racial categories still be relevant?

That's the question raised by a recent Pew report, "The Next America," as the country diversifies and more and more couples have children whose mixed identities defy typical "black and white" labels. 

The number of marriages for interracial couple has increased from less than 5 percent in 1960, when interracial marriage was illegal in a third of states, to 15.5 percent of all marriages in 2011. That means that every sixth "I do" is said between couples of different races or ethnicities. 

Latino and Asian Americans are the most likely to marry someone of a different race or ethnicity. One in four Latinos newlyweds are in an interracial marriage, as opposed to one in six Black newlyweds and one in ten white newlyweds. 

Even advertisers are picking up on the demographic shift, the report noted. More products are being marketed using portraits of families who embody the country's racial diversity.

By 2050, America's demographics are estimated to be 47 percent white, 13 percent Black, 28 percent Latino and 8 percent Asian. In California and New Mexico, Latinos have already become the majority demographic. 

The report also examined changing age demographics noting that the "baby boomer" generation is evening out America's age groups. In 1955, most of the population was young and few were old, but in 2050, the population will look more even, with an equal number of individuals in each age group, due to advances in medical science and demographic shifts.