How many peoples live in US?

According to the US Census of April, 2010, there were 308,745,538 residents in the US. There are more that are either on extended visas or are foreign nationals working or attending schools in the US.

An estimate on April 2, 2012 was 313,315,000 people.

(see the link below to the current Population Clock estimate)
As of April 2010, the total population of the US is 308,745,538 people.
322,762,018
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