Numbers, Facts and Trends Shaping Your World

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  • report

    Chapter 1: State Unauthorized Immigrant Populations

    Twenty-one states had statistically significant changes in their populations of unauthorized immigrants from 2009 to 2012. They comprise seven states where the number of unauthorized immigrants increased and 14 where the number decreased. These state-level changes are masked by the stability at the national level, according to the Pew Research estimates. The overall number of […]

  • short reads

    Executive actions on immigration have long history

    President Obama’s executive action to protect millions of unauthorized immigrants from deportation is an act that both follows and departs from precedents set by his predecessors.

  • short reads

    Those from Mexico will benefit most from Obama’s executive action

    Unauthorized immigrants from Mexico account for two-thirds of those who will be eligible for deportation relief under President Obama’s executive action, even as they account for about half of the nation’s unauthorized population, according to a new Pew Research Center analysis. The new action, which mainly applies to unauthorized immigrant parents of U.S. citizen or […]

  • report

    Chapter 2: Birthplaces of U.S. Unauthorized Immigrants

    The most notable trend in the national origins of unauthorized immigrants over the past five years has been the continued decline in the number and share born in Mexico. The population of Mexican-born unauthorized immigrants, 2.9 million in 1995, peaked in 2007 at 6.9 million and declined to 6.4 million in 2009. Even as the […]

  • report

    Adherents of Folk Religions

    An estimated 405 million people – or about 6% of the world’s population – were adherents of folk or traditional religions in 2010, and that number is expected to grow to 450 million by 2050. This increase will not keep pace with overall population growth, however, and the folk religion population is expected to drop […]

  • report

    Other Religions

    In 2010, 0.8% of the world’s population belonged to religious groups not classified elsewhere in this report. By 2050, adherents of other religions are expected to decline slightly as a share of the world’s population (to 0.7%). This “other religions” category includes followers of religions that are not specifically measured in surveys and censuses in […]

  • report

    Jews

    As of 2010, there were nearly 14 million Jews around the world. In 2050, the Jewish population is expected to number about 16 million. The share of the world’s population that is Jewish – 0.2% – is expected to remain about the same in 2050 as it was in 2010. Over the next few decades, […]

  • report

    Appendix C: Methodology

    Overview The estimates presented in this report for the unauthorized immigrant population are based on a residual estimation methodology that compares a demographic estimate of the number of immigrants residing legally in the country with the total number of immigrants as measured by a survey—either the American Community Survey or the March Supplement to the […]

  • report

    References

    Baker, Bryan and Nancy Rytina. 2013. “Estimates of the Unauthorized Immigrant Population Residing in the United States: January 2012.” Washington, D.C.: U.S. Department of Homeland Security, Office of Immigration Statistics, March. Bean, Frank D., R. Corona, R. Tuirán and K. Woodrow-Lafield. 1998. “The Quantification of Migration Between Mexico and the United States.” pp. 1-90 in […]