[USA] The Characteristics of Unauthorized Immigrants in California, Los Angeles County, and the United States / Urban Institute, March 2007
PDF - http://www.urban.org/UploadedPDF/411425_Characteristics_Immigrants.pdf
Karina Fortuny, Randy Capps, Jeffrey S. Passel
"This report hopes to fill some of the knowledge gaps in the current immigration debate by describing the unauthorised population nationally and in California and Los Angeles. Unauthorised immigrants numbered 2.45 million in California in 2004, representing almost one-quarter (24 percent) of the nation’s total (10.3 million). There are about 1 million unauthorised immigrants in the Los Angeles metropolitan area, one-tenth of the area’s population (10 million). The report presents findings about these populations, including their socio-economic characteristics, such as national origin, education, employment, and poverty."