Estimates of the Unauthorized Immigrant Population Residing in the United States: January 2010, February 2011: “This report provides estimates of the unauthorized immigrant population residing in the United States as of January 2010 for periods of entry and leading countries of birth and states of residence…In summary, the number of unauthorized immigrants living in the United States in January 2010 was 10.8 million—the same as in January 2009—but down from 11.8 million in January 2007. Between 2000 and 2010, the unauthorized population grew by 27 percent. Of all unauthorized immigrants living in the United States in 2010, 39 percent entered in 2000 or later, and 62 per-cent were from Mexico.”