Population history of indigenous peoples of the Americas about one million people. The Maya population is today estimated at six million, which is about the same as at the end of the 15th century, according to some estimates. In what is now Brazil, the indigenous population declined from a pre-Columbian high of an estimated four million to some 300,000. While it is difficult to determine exactly how many Natives lived in North America before Columbus, estimates range from a low of 2.1 million to 7 million people to a high of 18 million. The aboriginal population of Canada during the late 15th century is estimated to have been
Illegal immigrant population of the United States peak of 12.2 million in 2007," then dropped sharply during the Great Recession before stabilizing in 2009. Pew estimated the total population to be 11.1 million in 2014, or approximately 3 percent of the U.S. population. This "is in the same ballpark" as figures from the United States Department of Homeland Security (DHS), which estimated that 11.4 million illegal immigrants lived in the United States in January 2012. The estimate and trends are also consistent with figures reported by the Center for Migration Studies, which reported that the U.S. illegal immigrant population fell to 10.9 million by January 2016, the