Estimates of the Unauthorized Immigrant Population Residing in the United States: January 2008   [open pdf - 226KB]

"This report provides estimates of the number of unauthorized immigrants residing in the United States as of January 2008 by period of entry, region and country of origin, state of residence, age and gender. The estimates were obtained using the 'residual' methodology employed for estimates of the unauthorized population in 2007 (see Hoefer, Rytina and Baker, 2008). The unauthorized resident population is the remainder or 'residual' after estimates of the legally resident foreign-born population-legal permanent residents (LPRs), asylees, refugees, and nonimmigrants-are subtracted from estimates of the total foreign-born population. Data to estimate the legally resident population were obtained primarily from the Department of Homeland Security (DHS) while the American Community Survey (ACS) of the U.S. Census Bureau was the source for estimates of the total foreign-born population. In summary, the number of unauthorized immigrants living in the United States declined from 11.8 million in January 2007 to 11.6 million in January 2008. The 2008 estimate marks the first time since 2005 when DHS began producing annual estimates that there was not a year-to-year increase in unauthorized residents. During the 2000-2008 period, the unauthorized immigrant population increased by 37 percent."

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United States Department of Homeland Security: http://www.dhs.gov/
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