Undocumented Immigrants in California
California is home to more than two million undocumented immigrants.
Undocumented (also known as illegal or unauthorized) immigrants are not directly identified in any representative national or state surveys. But the best estimates suggest that in 2014, the year of the most recent data available, California was home to between 2.35 and 2.6 million undocumented immigrants. Nearly a quarter of the nation’s undocumented immigrants reside in California, where they constitute more than 6% of the state’s population. Nationally, the undocumented population has stabilized at approximately 11 million, following a slight decline after 2007. A combination of increased enforcement, voluntary returns, and fewer new migrants has increased the average length of residence in the United States, with 66% of undocumented immigrants having lived here for 10 or more years.
http://www.ppic.org/main/publication_show.asp?i=818
