10 facts about religion and government in the United States
Here are key findings from our research on the relationship between religion and government in the U.S. and Americans’ views on the issue.
CORRECTION (Dec. 19, 2025): Two charts and some of the text in Chapter 1 have been corrected with updated SHI figures. Refer to the errata page for details. Countries with the most extensive government restrictions on religion Government restrictions on religion vary from country to country, and some countries have much higher scores on the Government Restrictions […]
Since the 1990s, large numbers of Americans have left Christianity to join the growing ranks of U.S. adults who describe their religious identity as atheist, agnostic or “nothing in particular.” If recent trends in religious switching continue, Christians could make up less than half of the U.S. population within a few decades.