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U.S. POPClock Projection

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According to the U.S. Bureau of the Census, the resident population of the United States, projected to 08/30/09 at

COMPONENT SETTINGS FOR AUGUST 2009

	One birth every..................................   7 seconds
	One death every..................................  13 seconds
	One international migrant (net) every............  36 seconds
	Net gain of one person every.....................  10 seconds

The U.S. population clock is based on the national population estimates. The U.S. Census Bureau produces national population estimates annually using the latest available data on births, deaths, and international migration. Each year, we recalibrate the population clock when we release the new set of population estimates. For more information on the methodology for producing national estimates, see http://www.census.gov/popest/topics/methodology/2008-nat-meth.pdf [PDF].

Historical National Population Estimates [PDF - 81K]

Documentation for these projections.

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Source: U.S. Census Bureau | Population Division |1-866-758-1060 |  Last Revised: August 06, 2009