Jan. 2007 – US Department of Homeland Security Estimates 11.8 Million Unauthorized Immigrants in US with 59% from Mexico

“[A]n estimated 11.8 million unauthorized immigrants were living in the United States in January 2007 compared to 8.5 million in 2000. Between 2000 and 2007, the unauthorized population increased 3.3 million; the annual average increase during this period was 470,000. Nearly 4.2 million (35 percent) of the total 11.8 million unauthorized residents in 2007 had entered in 2000 or later. An estimated 7.0 million (59 percent) were from Mexico.”