Note: Materials are listed in reverse chronological order, organized by sub-topic.

Immigrant and refugee demographics & key statistics

• Refugee Statistics (UN High Commissioner for Refugees website, updated regularly)

• Immigrant women and girls in the United States (published online by Migration Policy Institute, March 2020)

• The share of immigrant workers in high-skill jobs is rising in the U.S. (published online by Pew Research Center, February 2020)

• Origins and destinations of the world’s migrants, 1990-2017 (interactive tool from Pew Research Center, February 2018)

• Immigration projected to drive growth in U.S. working-age population through at least 2035 (published online by Pew Research Center, March 2017)

• Facts on U.S. immigrants, 2017 (published online by Pew Research Center, June 2019)

Citizenship and naturalization

• Naturalized Citizens in the United States (Migration Policy Institute, July 2024)

• Naturalize Now, Vote Tomorrow: New Americans vote 2020 (report by National Partnership for New Americans, February 2020)

• Naturalized citizens make up record one-in-ten U.S. eligible voters in 2020 (published online by Pew Research Center, February 2020; see p.12 for Mass.-specific data))

• Paths to Citizenship: Using data to understand and promote naturalization (report by USC Dornsife Equity Research Institute report, January 2019; includes interactive map with state-by-state analysis)

Undocumented immigrants

• Tax Payments by Undocumented Immigrants (Institute on Taxation and Economic Policy, July 2024)

• Undocumented Immigrants Health Care Roles and Settings (Center for American Progress, February 2021)

• Undocumented Immigrants in the Care Economy (Center for American Progress, February 2021)

• Undocumented Immigrants in the Food Supply Chain (Center for American Progress, February 2021)

• Undocumented Immigrants in Construction (Center for American Progress, February 2021)

• Reverse migration to Mexico led to U.S. undocumented population decline: 2010 to 2018 (Center for Migration Studies, February 2020)

• Mexicans decline to less than half the U.S. unauthorized immigrant population for the first time (published online by Pew Research Center, June 2019)

• U.S. Unauthorized Immigrant Total Dips to Lowest Level in a Decade (report by Pew Research Center, November 2018)

• Undocumented Immigrants’ State & Local Tax Contributions (report by Institute on Taxation and Economic Policy, March 2017)

• Immigration myths – crime and the number of illegal immigrants (published online by Cato Institute, March 2017)

Immigration policy and enforcement

• Mass Deportation – Devastating Costs to America, its Budget and Economy (American Immigration Council, October 2024)

• The Cost of Immigration Enforcement and Border Security (American Immigration Council, August 2024)

• How states can improve America’s immigration system (Brookings Institution, September 2019)

• Under the Radar: The Trump Administration’s Stealth Attack on the U.S. Immigration System (policy-oriented report from U.S. Senator Edward J. Markey’s office, May 2019)

• The Facts on Immigration Today: 2017 Edition (report from Center for American Progress, April 2017)

• The effects of sanctuary policies on crime and the economy (published online by Center for American Progress, January 2017)