how many people live in the united states of america?

The US enters 2012 with a population of roughly 312.8 million people or exactly 312,780,968 people, according to the U.S. Census Bureau's end-of-2011 estimate.
Answered by kgb agent Jasmine B on Sunday, March 04 2012 at 03:12AM EST
Source: www.census.gov/...

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