March 21, 2002

How Many Undocumented

The Numbers Behind The U.S.-Mexico Migration Talks

There are more than 5 million unauthorized workers in the U.S. economy. This study estimates that these workers have become a very substantial presence in the sectors where they are concentrated. More than a million undocumented persons are employed in manufacturing and a similar number in the service industries. More than 600,000 work in construction and more than 700,000 in restaurants.

Cite this publication: B. Lindsey Lowell and Roberto Suro. “How Many Undocumented.” Pew Research Center, Washington, D.C. (March 21, 2002) http://www.pewhispanic.org/2002/03/21/how-many-undocumented/, accessed on July 22, 2014.