The U.S. immigrant population stood at more than 43.3 million, or 13.5 percent, of the total U.S. population of 321.4 million in 2015, according to American Community Survey (ACS) data. Between 2014 and 2015, the foreign-born population increased by 899,000, or 2.1 percent, a slower growth rate compared to 2.5 percent between 2013 and 2014.
According to the 2016 Current Population Survey (CPS), immigrants and their U.S.-born children now number approximately 84.3 million people, or 27 percent of the overall U.S. population.
In 2015, 1.38 million foreign-born individuals moved to the United States, a 2 percent increase from 1.36 million in 2014. India was the leading country of origin for recent immigrants, with 179,800 arriving in 2015, followed by 143,200 from China, 139,400 from Mexico, 47,500 from the Philippines, and 46,800 from Canada. In 2013, India and China overtook Mexico as the top origin countries for recent arrivals.
While most of these new arrivals are immigrants new to the country, some are naturalized citizens, lawful permanent residents, and others who might have lived in the United States for some time prior to returning in 2015.