According the U.S. Census Bureau, America welcomed its 300 millionth citizen today at exactly 6:46 a.m. central time. This projection was based on estimates for births, deaths and net immigration that add up to one new American every 11 seconds. While of course the time and amount of people that America holds are only approximated by the bureau, it does bring interesting statistics into consideration, which may lead one to ask, will America become overpopulated?

Despite the population increase, The U.S. still has a lot of space, with about 84 people per square mile, especially when compared to approximately 900 people per square mile in Japan.

Other interesting facts that the U.S. Census Bureau cited is that in 1967, the same year the United States hit the 200 million mark, the median age for residents was 29.5. Today it has increased to 36.2. Life expectancy also climbed from the age of 70.5 in 1967 to 77.8 today. One astonishing number, however, is the number of foreign-born residents in the U.S. then and now. In 1967, it was 9.7 million. Today it's reached an estimated 34.3 million.

"As almost nothing else can, immigration-led growth signals the attractiveness of the American economy and polity," said Kenneth Prewitt, a former head of the Census Bureau and now professor of public affairs at Columbia University. "You don't see large numbers of immigrants clamoring to move to China."

Frey said he hopes Americans will see how immigration will keep America progressing, with foreign-born residents and their children entering into the workforce and their payroll taxes helping decrease monetary shortages for Social Security and other programs that older generations benefit from.

"So many middle-aged baby boomers who oppose immigration may be biting the hand that could feed them," Frey said.

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