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The U.S. is growing, and the world is growing faster. The U.S. entered 2016 with an estimated population of 322,762,018 according to an end-of-year estimate from the U.S. Census Bureau, meaning that we added more than 2.4 million people to the population over the course of the year.
Skip top of page navigation. According to the U.S. Census Bureau, the resident population of the United States, projected to 06/30/15 at 23:59 UTC (EST+5) is. 316,158,691. The U.S. population clock is based on a series of short-term projections for the resident population of the United States. This includes people whose usual residence is in the 50 states and the District of Columbia.