The new data shows Asians experienced the fastest population growth from 2011 to 2012, growing by more than a half-million people nationwide. It was mostly driven by immigration.
The data also found the population of non-Hispanic whites is shrinking. It's estimated the whites will no longer be the majority ethnic group in the U.S. by 2043.
And Americans are also getting older. The U.S. median age climbed somewhat because people are living longer.
