Pew-Templeton Global Religious Futures Project

Pew Research’s fourth major report on global restrictions on religion finds that the share of countries with high or very high restrictions on religion rose from 37% in 2010 to 40% in 2011. The Middle East and North Africa continued to have the highest levels of restrictions in the year when much of the Arab Spring uprisings occurred, with social hostilities involving religion increasing markedly and government restrictions remaining high.

A new survey report looks at attitudes among Muslims in 39 countries on a wide range of topics, from science to sharia, polygamy to popular culture. The survey finds that overwhelming percentages of Muslims in many countries want Islamic law to be the official law of their land, but there is also widespread support for democracy and religious freedom.

Over the past century, the number of Catholics worldwide has more than tripled. But the world’s overall population also has risen rapidly from 1910 to 2010. As a result, Catholics have made up a remarkably stable share of all people on Earth, though their geographic distribution has changed substantially.

A country-by-country analysis of data from more than 2,500 censuses, surveys and population registers finds that 84% of adults and children around the globe are religiously affiliated. The study also finds that the median age of two major groups – Muslims (23 years) and Hindus (26) – is younger than the world’s overall population (28), while Jews have the highest median age (36).

Between mid-2009 and mid-2010, religious restrictions rose not only in countries that began the year with high or very high restrictions, such as Indonesia and Nigeria, but also in many countries that began with low or moderate restrictions, such as Switzerland and the United States. The report looks at restrictions due to government actions as well as acts of violence and intimidation by private individuals, organizations and social groups.

This study focuses on the religious affiliation of international migrants, examining patterns of migration among seven major groups: Christians, Muslims, Hindus, Buddhists, Jews, adherents of other religions and the religiously unaffiliated.

A comprehensive demographic study finds that there are 2.18 billion Christians of all ages around the world, representing nearly a third of the estimated 2010 global population of 6.9 billion. Christians are also geographically widespread, and no single region can indisputably claim to be the center of global Christianity.

Restrictions on religious beliefs and practices rose in 23 of the world’s 198 countries (12%), decreased in 12 countries (6%) and remained essentially unchanged in 163 countries (82%) between mid-2006 and mid-2009, a new Pew Forum report shows. More than 2.2 billion people – nearly a third of the world’s population – live in the 23 countries with increasing government restrictions or social hostilities involving religion.