The 2010 Census showed that the U.S. population on April 1, 2010 was 308.7 million. Out of the total U.S. population, 14.7 million people, or 4.8 percent, were Asian alone. In addition, 2.6 million people, or another 0.9 percent, reported Asian in combination with one or more other races. Together, these two groups totaled 17.3 million people. Thus, 5.6 percent of all people in the United States identified as Asian, either alone or in combination with one or more other races.
Asian is the third largest ethnic group in U.S., following the White and the Black or African American groups. The following chart shows only Asian-alone population, excluding Asian in combination.
Source: The Asian Population: 2010 Census Brief, US Census Bureau
Source: Overview of Race and Hispanic Origin: 2010, US Census Bureau