Michael Lipka

Looking at the religious makeup of individual states, and at each party’s potential voters within a particular state, can help in understanding the electoral landscape.

Mormons are the most heavily Republican-leaning religious group in the U.S., while a pair of major historically black Protestant denominations are two of the most reliably Democratic groups.

A historic event within global Christianity is set to take place Friday as Pope Francis meets Russian Orthodox Patriarch Kirill in Cuba – the first-ever meeting between the leaders of the Catholic and Russian Orthodox churches since the Orthodox tradition broke away from Catholicism nearly 1,000 years ago.

Mexico is home to not only the largest Spanish-speaking population in the world, but one of the biggest Catholic populations, too.

If Hillary Clinton ends up being the Democratic Party’s nominee for president, her politics won’t be the only thing many Republicans and Democrats disagree about during the coming campaign.

The phrase “spiritual but not religious” has become widely used in recent years by some Americans who are trying to describe their religious identity.

In the last two decades, several religious groups have moved to allow same-sex couples to marry within their traditions.

Millennials are less religious than older Americans and less likely to identify with a religious group, and those traits are reflected in the way they celebrate Christmas.

Religious "nones" make up 23% of U.S. adults, up from 16% in 2007. And only 27% of those “nones” are absolutely certain about God’s existence, down from 36% in 2007.

The vast majority of Americans still believe in God, but there are strong signs that many are less certain about this belief than in years past.