Immigration & Migration

Out of 45 million U.S. arrivals by air and sea whose tourist or business visas expired in fiscal 2015, the agency estimates that about 416,500 people were still in the country this year.

Large-scale refugee flows and lack of progress in slowing global warming are the top risks that the world faces in the coming decade, according to a survey by the World Economic Forum of executives and experts.

The U.S. Supreme Court is expected in April to hear a lawsuit by Texas and 25 other states that seeks to block presidential executive actions offering deportation relief and work permits to unauthorized immigrants.

From Millennials in the workforce to religion in America, our most popular posts told important stories about trends shaping our world.

From trust in government to views of climate change, here are some of Pew Research Center's most memorable findings of the year.

Public opinion data going back to the 1930s shows that generally speaking, Americans oppose large numbers of refugees entering the country.

Between 2009 and 2014, about 140,000 more Mexican immigrants have returned to Mexico from the U.S. than have migrated here, citing family reunification as the main reason for leaving.

With so much new infrastructure, 62% of urban areas in China with populations over 100,000 have become less crowded -- even as most gained in total population.

Last year, 84,000 people left Puerto Rico for the U.S. mainland, a 38% increase from 2010. At the same time, the number of people moving to Puerto Rico from the mainland declined.

Survey Report As immigration emerges as a key issue in the presidential campaign, there is little common ground between Republicans and Democrats in views of several immigration policy proposals. But partisan disagreements are much more pronounced on some issues than others. Overall, the public continues to be divided over building a fence along the entire […]