Evolution remains a contentious issue. When asked about it, highly religious Americans' responses can vary depending on how the question is asked.
Measuring public opinion on evolution has never been an easy task for survey researchers.
The new Congress is slightly more religiously diverse than its predecessor, but it remains overwhelmingly Christian.
The new, 116th Congress includes the first two Muslim women ever to serve in the House of Representatives, and is, overall, slightly more religiously diverse than the prior Congress.
Pew Research Center takes the pulse of Americans and people around the world on many issues every year. Read 18 of this year’s standout findings.
Central and Eastern Europeans of different ages are about equally likely to say that Christianity, birthplace and ancestry are important to national identity.
We asked thousands of Americans where they find meaning in life. Their responses were rich, thoughtful and varied.
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.
When it comes to public attitudes on religion, national identity and the place of religious minorities, Greeks, like their neighbors to the East, hold more nationalist and less accepting views than do Western Europeans.