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. Lopez said that Southern states such as Georgia and North Carolina have seen an increase in undocumented immigrants because their economies have fared better than California since the 1990s . 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 . 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 .