The Pew Research Center this week published an overview of the characteristics of the 2020 electorate. It had this to say about the religious affiliation of registered voters in the U.S.:
Christians account for the majority of registered voters in the U.S. (64%). But this figure is down from 79% as recently as 2008. The share of voters who identify as religiously unaffiliated has nearly doubled during that span, from 15% to 28%.
The share of White Christians in the electorate, in particular, has decreased in recent years. White evangelical Protestants account for 18% of registered voters today, down from 21% in 2008. During the same period, the share of voters who are White non-evangelical Protestants fell from 19% to 13%, while the share of White Catholics fell from 17% to 12%.
Around eight-in-ten Republican registered voters (79%) are Christians, compared with about half (52%) of Democratic voters. In turn, Democratic voters are much more likely than GOP voters to identify as religiously unaffiliated (38% vs. 15%).
