Homeland Security estimates that from January 2000 to January 2006 the illegal population rose 37% to 11.6 million.
In an e-mail, Campanella said he bases this rough estimate on the 2006 Louisiana Health and Population Survey.
CNN: New Orleans' new arrivals: Young, educated and infused with hope
In contrast, almost 800, 000 people piled into the Inland Empire between 2000 and 2006, swelling the population by a quarter.
It has been one of the fastest-growing cities in America in terms of gross domestic product (67% increase from 2001 to 2006) and foreign-born population (65% increase from 2001 to 2007).
The DirecTV-pirate population could jump to 3.3 million by 2006.
From 2006 through 2012, Philadelphia's population grew by 58, 897 after falling for half a century, with 20- to 34-year-olds' share of the population up to 26% from 20%, according to Census estimates.
William Frey, a researcher with the Brookings Institution, which has kept detailed records and analysis of the city's population since the storm, said his analysis of 2006 census data released this month shows that those in the 25- to 35-year-old age range were least likely to be present in the city by July of last year.
CNN: New Orleans' new arrivals: Young, educated and infused with hope
For example, in 2006, 47 percent of Toronto's population reported themselves as being part of a visible minority.
The trend is even more striking in Michigan, which owes some of its dramatic fall in unemployment to a shrinking population and a labour force that fell 8% between 2006 and 2011.
And Spain's cement mixers were on fire: three-quarters of a million homes were built in 2006, half the number in America, whose population is seven times larger.
The overall population of seabirds on the islands declined by 24% between 1983 and 2006.
However, the employment-population ratio reached its most recent peak of 63.4% in December 2006, and then began to decline.
The population of the city proper was 437, 715 at the 1 Jan. 2006 census, with 1, 102, 882 inhabitants in the metropolitan at the 1 Jan. 2006 census.
"Based on the incidence estimates released last month, we already know that African Americans overall accounted for 45 percent of new HIV infection in 2006, while representing only 12 percent of the U.S. population, " Wolitski said.
Instead, according to the 2006 census, informal areas have absorbed nearly 79 percent of Cairo's population growth.
According to a 2006 FIFA survey, China had 708, 754 amateur and youth players from a population of 1.3 billion compared to 738, 800 in England.
For example, there is considerable disagreement about the population of Lagos, where local officials claimed there were twice as many people in 2005 as were counted in the 2006 Nigerian census.
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