A new Gallup poll reveals that church membership has decreased 23% over the last 20 years. Roughly 70% of Americans were members of a church from 1940 through 2000, but since 2000 church membership has quickly declined. It fell 9% from 2000 to 2010, and 14% from 2010 to 2020.

Gallup attributes more than half of the drop in church attendance to the increase in those who no longer identify with any particular religion. However, even among the religiously affiliated, church membership is down across all age demographics (but rates are higher the younger the demo).