Friday, February 15, 2013

New National and State Estimates of America’s Unauthorized Immigrant Population

 The International Migration Review (IMR) today published a study with new estimates of the unauthorized immigrant population. The report, titled Unauthorized Immigration to the United States: Annual Estimates and Components of Change, by State, 1990 to 2010, is co-authored by Robert Warren, former demographer for the US Immigration and Naturalization Service (INS), and John Robert Warren, professor of sociology at the University of Minnesota.

The report estimates that the number of unauthorized immigrants arriving in the U.S. peaked at more than one million annually between 1999 and 2001, and then declined rapidly thereafter. The number leaving the population steadily increased over these years. It also finds that:

The total number of unauthorized immigrants in the United States was about 11.7 million in January 2010, about 4 million higher than it was in 2000. However, the United States lost more unauthorized immigrants than it gained in both 2008 and 2009. In January 2010, nearly 3 million unauthorized immigrants --- about 25 percent of the nation’s total --- resided in California.

Near two-thirds of all unauthorized immigrants lived in just seven states: California, Texas, Florida, New York, Illinois, New Jersey, and Georgia.

Between 2000 and 2009, inflows declined in every state except Mississippi (and Washington, D.C.), and outflows increased in every state. As a result, 29 states and D.C. experienced net losses in their populations of unauthorized immigrants in 2009.

The seven states with the fastest growing populations of unauthorized immigrants over the past two decades, in declining order, were in the southeast: Alabama, South Carolina, North Carolina, Tennessee, Arkansas, Kentucky, and Georgia. In each of these states, the unauthorized immigrant population was more than 11 times larger in 2010 than it was in 1990.


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