The Catholic Church remains closely tied to Europe. Catholics are the largest religious group in many of the continent’s most populous countries.
Within Europe, there are sometimes sizable differences in levels of religious commitment. A new interactive lets you explore these differences.
Looking for a new religious congregation is common in the U.S. But how likely Americans are to look for a new church varies by their education and income levels.
White evangelical or born-again Christians backed GOP candidates for the House at about the same rate in 2014. Religious "nones" and Jewish voters again largely backed Democratic candidates.
Many more U.S. Muslims identify with or lean toward the Democratic Party than the GOP (66% vs. 13%), but the share who are Republican has held steady over the last 10 years, including after the election of President Donald Trump.