The non-Hispanic, single-race white population is expected to rise slightly to 203.3 million in 2050 from 199.8 million in 2008, while the Hispanic population is expected to almost triple to 132.8 million from 46.7 million, with its share of the total increasing to 30 percent from 15 percent, the Bureau said.
The black population is expected to increase to 65.7 million, or 15 percent, in 2050 from 41.1 million, or 14 percent, in 2008. The Asian population will increase to 40.6 million from 15.5 million this year, almost doubling its share of the total, to 9.2 percent from 5.1 percent.
The projections also suggest an aging of the U.S. population, with the proportion of people of working age -- 18 to 64 -- declining to 57 percent in 2050 from 63 percent in 2008.