The BLS has been tracking the number of foreign-born workers annually since 2005 and monthly since 2007. The BLS does not distinguish between foreign-born individuals who are in the United States legally and those who are here illegally.
“The foreign born are those who reside in the United States but who were born outside the country or one of its outlying areas to parents who were not U.S. citizens,” the BLS explains. “The foreign born include legally-admitted immigrants, refugees, temporary residents such as students and temporary workers, and undocumented immigrants. The survey data, however, do not separately identify the numbers of persons in these categories.”
The 25,019,000 foreign-born workers who held jobs in the United States in September was up 380,000 from August, when 24,639,000 foreign-born workers held jobs.
From September 2013 to September 2014, the number of foreign-born workers holding jobs in the United States climbed by 978,000 from 24,041,000 to 25,019,000. During that same September-to-September period, the number of native-born Americans holding jobs increased by 1,312,000, from 120,610,000 to 121,922,000.
Of the 146,941,000 people with jobs in the United States in September (in the BLS’s non-seasonally adjusted data), the 25,019,000 foreign-born workers equaled 17 percent of the job-holders. But of the 2,290,000 increase in job-holders from September 2013 to September 2014, the 978,000 increase in foreign-born job-holders was 42.7 of the total.