Same-Sex Marriage, State by State
In June of 2015, the U.S. Supreme Court ruled all state bans on same-sex marriage unconstitutional, allowing gay and lesbian couples to marry nationwide. This timeline highlights the changes in state policies leading up to that ruling.
Changing Attitudes on Gay Marriage
A series of graphics shows how public opinion toward same-sex marriage has changed in Pew Research Center polls since 2001. See how much opinion varies by generation, religious group, gender, race and political party.
Religious Landscape Study
Explore the geographic distribution and demographics of America’s major religious groups.
Event: The Future of World Religions
Number of Executions in Each State Since 1977
Over 1300 executions have occurred in the U.S. since 1977, the year after the Supreme Court reaffirmed its approval of the death penalty. See how many executions have been performed in each state since the ruling.
Religious Composition by Country, 2010-2050
Explore the estimated religious composition of 198 countries and territories for 2010 to 2050.
Restrictions and Hostilities in the Most Populous Countries
Explore the levels of social hostilities and government restrictions on religion in the world’s 25 most populous counties since 2007.
Members of Congress: Religious Affiliations
Explore the religious affiliation of each of the members to be sworn into the 114th Congress on Jan. 6, 2015. Data were compiled by CQ Roll Call and the Pew Research Center’s Religion & Public Life Project.
Religious Switching Among Hispanics
A major survey of U.S. Hispanics conducted by the Pew Research Center finds that nearly one-third of Hispanics (32%) no longer belong to the religion in which they were raised.