According to the American Immigration Council, the construction industry has the highest percentage of undocumented workers at 13.7 percent, surpassing agriculture (12.7 percent), hospitality (7.1 percent), general services (6.5 percent), and transportation and warehousing (5.5 percent).

Within construction, the crafts with the highest proportions of undocumented workers are plasterers and stucco masons at 39 percent; drywall installers, ceiling tile installers and tapers at 36 percent; roofers at 36 percent; and painters and paperhangers at 31 percent.