Over 14% of Mexican Workers Now Work in the U.S. According to a recent report by the Migration Policy Institute, a libral think tank in washington, one in seven Mexican workers -- or 14.28% -- have left their country and are now working in the United States. There were more than 7 million workers from Mexico in the U.S. labor force this year, 2 million more than six years ago, said Jeanne Batalova, author of the report. Up to 9.4 percent of the all persons born in Mexico were living in the United States in 2005, according to the report. In the same year, 14 percent of Mexican workers had jobs on U.S. soil, compared to 2.5 percent of Canadians. Based on data from the Census Bureau's 2006 Current Population Survey, Batalova found that Mexicans accounted for nearly one-third of the 22.6 million foreign-born workers in the United States, or almost 5 percent of the total civilian labor force. More than 11 million illegal immigrants, most of them from Mexico, live in the United States, according to the Pew Hispanic Center, another think tank in Washington that follows immigration trends.