US population hits 300 million

Population graphThe US population has hit 300 million today, just 39 years after it reached 200 million, the US Census Bureau estimates. A “population clock” will recorded the milestone at 0746 (1146 GMT) — a timing based on calculations that factor birth and death rates and migration. The bureau’s maths suggests that the US gains one person every 11 seconds. But it is not possible to say if the 300-millionth American will be born, or cross one of the country’s borders.