usa population

U.S. Population 2013: More Than 315 Million People

There will be more than 315 million people in the United States when the calendar flips from 2012 to 2013, according to the U.S. Census Bureau.
According to the Bureau's estimate, the precise U.S. population will be 315,091,138, which is an increase of 2,272,462 people since the 2012 calendar year started. That 0.73 percent increase is in keeping with population growth during 2011, and a marginal uptick over 2010 (0.6 percent growth), but still not on the pace of 2009 (0.9 percent).
The Census bureau also estimates that one new baby will be born in the United States every eight seconds, while one person will die in the country every 12 seconds. So since you started reading this post, we've added six and lost four.
[See 2012: The Year in Cartoons.]
In addition, according to the Census's "POPClock," we'll add a net of one international migrant 40 seconds. That's a somewhat faster pace than the last couple of years—last year the Bureau figured that we would add a new international migrant every 46 seconds and the rate was one every 45 seconds the year before that; in 2009 they were coming into the country once every 36 seconds.
Overall, between births, deaths, and immigrations, the country will gain a new resident every 17 seconds. That holds steady from last year, which was a decline from the start of 2011 (one every 15 seconds) and the year before that (one every 14 seconds).