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short readsJul 29, 2025

The number of Christian-majority countries fell between 2010 and 2020

Countries that lost their Christian majorities all saw growing percentages of religiously unaffiliated people.
short readsNov 11, 2025

5 facts about religion in Nigeria

As of 2020, Muslims made up a majority of Nigeria’s total population (56.1%), while Christians made up 43.4%.
short readsMar 31, 2026

U.S.-style birthright citizenship is uncommon around the world

32 other countries around the world have birthright citizenship laws that are substantially similar to the U.S. Another 50 or so countries have more limited variations of birthright citizenship.
reportJun 9, 2025

Methodology

This section describes the methods used to estimate religious composition at the country level, regionally and globally; our procedures for measuring religious groups’ demographic characteristics and their religious “switching” rates; as well as methodological challenges that we considered in some countries. The final section lists the 201 countries and territories that make up each of […]
reportMar 26, 2025

Around the World, Many People Are Leaving Their Childhood Religions

In many places surveyed, 20% or more of all adults have left their childhood religious group. Christianity and Buddhism have had especially large losses.
reportMay 8, 2025

Methodology

Much of the data in this essay is drawn from the Religious Landscape Study (RLS). We also draw upon data collected from surveys conducted on Pew Research Center’s American Trends Panel (ATP) and data from the General Social Survey (GSS). We walk through the details of these data sources below. We also discuss how we […]
reportJun 9, 2025

How the Global Religious Landscape Changed From 2010 to 2020

Christians remain the largest religious group, and Muslims grew the fastest from 2010 to 2020. Read how the global share of Buddhists, Hindus, Jews and the religiously unaffiliated changed.
short readsJan 23, 2026

Has there been a Christian revival among young adults in the U.K.? Recent surveys may be misleading

Despite the widely recognized decline of Christianity in the U.K., there have been persistent rumblings of a Christian resurgence.
short readsMar 13, 2026

Federal workforce shrank 10% in Trump’s first year back in office

The federal workforce shrank by 10.3% in 2025, losing nearly 238,000 workers. Among major agencies, the Education Department and USAID had the steepest cuts.
reportDec 18, 2024

Government Restrictions on Religion Stayed at Peak Levels Globally in 2022

Long-term analysis of 198 countries and territories shows government restrictions on religion and social hostilities toward religious groups go hand in hand.

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Search results for: “category publications project&”

The number of Christian-majority countries fell between 2010 and 2020

5 facts about religion in Nigeria

U.S.-style birthright citizenship is uncommon around the world

Methodology

Around the World, Many People Are Leaving Their Childhood Religions

Methodology

How the Global Religious Landscape Changed From 2010 to 2020

Has there been a Christian revival among young adults in the U.K.? Recent surveys may be misleading

Federal workforce shrank 10% in Trump’s first year back in office

Government Restrictions on Religion Stayed at Peak Levels Globally in 2022

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Search results for: “category publications project&”

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