The portion of Americans identifying as white evangelical Christians topped out at 27 percent in the 1990s, according to the Public Religion Research Institute (PRRI), and the number has been dropping since — presently sitting around 13 percent.
> This analysis, produced for ABC by Langer Research Associates, is based on a very large dataset – 174,485 random-sample telephone interviews in ABC News and ABC News/Washington Post polls conducted from 2003 to 2017. We focus mainly on 2003 and 2017 data, including 7,185 and 5,017 interviews, respectively.
> Among all Protestants, 56 percent currently say they’re evangelical or born-again; that has held essentially steady since 2003, with virtually equal declines in the number who say they’re either evangelical or non-evangelical Protestants, down 7 and 6 points, respectively.
> Evangelical white Protestants are of particular interest in political terms, since they’re a core group within the Republican coalition; 80 percent supported Donald Trump in 2016. Evangelical white Protestants’ share of the total adult population has gone from 21 percent in 2003 to 13 percent last year. Non-evangelical white Protestants have gone from 17 to 11 percent.