The U.S. Population Is Growing Faster Than Any Other Country - Maricopa, AZ

"The city (Maricopa) is only three years old, but Mayor Kelly Anderson has lived on a farm in what is now Maricopa all his life. So far, he is the city's first and only mayor. Houses are springing up where he said six months ago, there were none.

Maricopa is a microcosm of the population surge occurring in much of the United States — the fastest growing in the industrialized world.

There are one million new residents every four months. The census bureau predicts we'll reach 300 million people some time the week of October 16th.

William Frey, a demographer with the Brookings Institution, said there are three reasons for U.S. population growth: the birth rate is relatively high, we're healthier and living longer, but mostly, it's immigration. He said there is a net increase of one immigrant — legal or illegal — every 30 seconds." read more

From CBS News