Net immigration from Mexico to the United States continues to decrease.
There were 11.1 million unauthorized immigrants living in the U.S. in March 2011 according to estimates by the PEW Hispanic center. The peak was reached in 2007 which was over 12 million.
The decrease in unauthorized immigrants has been driven mainly by a decrease in the number of new immigrants from Mexico, the single largest source of U.S. migrants.
In addition, the number of Mexicans and their children who moved from the U.S. to Mexico between 2005 and 2010 roughly doubled from the number who had done so in the five-year period before.
In early 2013, the PEW Hispanic center plans to release an estimate of the 2012 U.S. unauthorized immigrant population.
You can read more about the population changes in the current issue of Tu Decides the bilingual newspaper.