Figure 5 Occupations with High Shares of Unauthorized Immigrants, 2008 unauthorized immigrants afworkers in occupation) 25%
Among states, the proportion of unauthorized workers varies widely: They constitute roughly 10% or more of the labor force in Arizona, California and Nevada, but less than 2.5% in most Midwest and Plains states. They are especially likely to hold low-skilled jobs and their share of some of those occupations has grown. In 2008, 17% of construction workers were undocumented, an increase from 10% in 2003. One in four farmworkers is an unauthorized immigrant.
Figure 5  | Occupations with High Shares of Unauthorized Immigrants, 2008  | unauthorized immigrants afworkers in occupation)  | Farming  | 25%  | keeping Building, grounds-  | 19%  | keeping & maintenance  | Construction  | 17%  | Food preparation &  | 12%  | serving  | Production  | 10%  | Transportation or  | 7%  | material moving  | Civilian  | 5 .4%  | labor force  | Source: Pew Hispanic Center tabulations from augmented March 2008 Current Population  | Survey, See text for details. 