In 2004, there were 21.4 million foreign-born persons in the American labor force, 14.5 percent of the total. From 2002 to 2004, the number of foreign-born labor force participants grew by about 1.2 million and accounted for a little less than half of total labor force growth.
A little over two-thirds—67.5 percent—of foreign-born persons 16 years and over were in the labor force in 2004. The labor force participation rate for the native born was 65.7 percent.
Foreign-born men were more likely to be labor force participants than their native-born counterparts. In contrast, foreign-born women were less likely to be labor force participants than were native-born women.
Bureau of Labor Statistics, U.S. Department of Labor, The Economics Daily, Foreign-born labor force participation at https://www.bls.gov/opub/ted/2005/may/wk4/art02.htm (visited August 19, 2022).