Demographics of the United States // Wiki

As of January 1, 2013, the United States had a total resident population of 315,250,000,[1] making it the third most populous country in the world.[2] It is a very urbanized population, with 82% residing in cities and suburbs as of 2008 (the worldwide urban rate is 50.5%[3]). This leaves vast expanses of the country nearly uninhabited.[4] California and Texas are the most populous states,[5] as the mean center of United States population has consistently shifted westward and southward.[6] New York City is the most populous city in the United States.[7]

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