Pew Research CenterApril 6, 2017

Why Muslims are the world’s fastest-growing religious group

While the world’s population is projected to grow 32% in the coming decades, the number of Muslims is expected to increase by 70% – from 1.8 billion in 2015 to nearly 3 billion in 2060.

HispanicMarch 29, 2017

Key findings about Puerto Rico

To mark the 100th anniversary of the U.S. government granting American citizenship to the residents of Puerto Rico, here are key facts about the territory.

HispanicFebruary 9, 2017

20 metro areas are home to six-in-ten unauthorized immigrants in U.S.

A new analysis shows that the nation’s unauthorized immigrant population is highly concentrated, more so than the U.S. population overall.

ReligionJanuary 31, 2017

World’s Muslim population more widespread than you might think

While many, especially in the U.S., may associate Islam with the Middle East or North Africa, nearly two-thirds of the world’s 1.6 billion Muslims live in the Asia-Pacific region.

Fact TankDecember 21, 2016

16 striking findings from 2016

In 2016, Pew Research Center examined an array of topics in America – from immigration to the growing divide between Republicans and Democrats – as well as many from around the globe.

Fact TankNovember 1, 2016

Child marriage is rare in the U.S., though this varies by state

About 57,800 minors in the U.S. ages 15 to 17 are married – or five of every 1,000 in that age group. But the rate of child marriage varies widely between states.

Fact TankOctober 26, 2016

Number of babies born to unauthorized immigrants in U.S. continues to decline

About 275,000 babies were born to unauthorized-immigrant parents in 2014, a decline from 330,000 in 2009.

Fact TankOctober 4, 2016

Federal officials may revamp how Americans identify race, ethnicity on census and other forms

Federal officials are proposing new changes to census questions on racial and Hispanic identity.

Fact TankSeptember 21, 2016

Unauthorized immigrant population stable for half a decade

The unauthorized immigrant population in the U.S. – 11.1 million in 2014 – has remained essentially stable since 2009 after nearly two decades of changes.

Fact TankSeptember 20, 2016

Measuring illegal immigration: How Pew Research Center counts unauthorized immigrants in the U.S.

Jeffrey S. Passel, senior demographer, on the research techniques used to derive the unauthorized immigrant population estimate in the U.S. and the challenges involved.