The census results revealed the growth of minority groups that make up almost 40% of the country's population. Today there are 5 million fewer white Caucasians than in 2010.
The United States population is more diverse and urban. But overall population growth in the country has slowed, newly released Census Bureau data show.
For Native Americans, the ethnic group with the highest undercount of any defined by the Census Bureau, diversity and isolation compound the obstacles to achieving a more accurate count.
