Are undocumented immigrants counted in the surveys?
Neither the establishment nor household survey is designed to identify the legal status of workers. Thus, while it is likely that both surveys include at least some undocumented immigrants, it is not possible to determine how many are counted in either survey. The household survey does include questions about whether respondents were born outside the United States. Data from these questions show that foreign-born workers accounted for about 15 percent of the labor force in 2006 and about 47 percent of the net increase in the labor force from 2000 to 2006.
