Undocumented immigrant population rose to 11.7 million in 2012 . The number of undocumented immigrants living in the United States has been declining since 2007, when it was estimated that there were 11 million. States such as Georgia and North Carolina have seen a population increase . New numbers could affect the debate on potential comprehensive immigration reform .
Undocumented immigrant population rose to 11.7 million in 2012 . Number represents those who crossed the U.S. borders illegally and those who overstayed their visas . States such as Georgia and North Carolina have seen a population increase . New numbers could affect the debate on potential comprehensive immigration reform .