Out of the 74 million U.S. households that own their homes, a sizable majority — 77 percent — are white. But these demographics are changing fast. Only 66 percent of millennial homeowners are white. The big gains have come from Latinos, who make up 17 percent of millennial homeowners but just 9 percent of all homeowners.

Asians also make up a greater share of millennials. This means that as today's millennial generation ages, the housing market may look considerably more diverse than it does now.