March 31, 2009
In 2008, 24.1 million persons, or 15.6 percent of the U.S. civilian labor force age 16 and over, were foreign born.
By region, the foreign born made up a larger share of the total labor force in the West (24.1 percent) and in the Northeast (17.9 percent) than for the nation as a whole.
In contrast, the shares of the labor force made up by foreign-born workers in the South (13.8 percent) and Midwest (7.8 percent) were less than for the nation.
Bureau of Labor Statistics, U.S. Department of Labor, The Economics Daily, Foreign-born workers by region, 2008 at https://www.bls.gov/opub/ted/2009/mar/wk5/art02.htm (visited August 01, 2021).