The total population of the United States was 308,745,538 in 2010, according to the federal Census conducted in that year. That figure represents a nearly 10 percent increase in population from the 281,421,906 reported as the total population in the 2000 Census.
Since the 1930 Census, the South has had the largest share of America's total population. In 2010, the Southern United States again made up the largest portion of the total population with nearly 115 million people. The West ranked second with just under 72 million people. The Midwest had 67 million residents, while the Northeast had a population of slightly more than 55 million.