After climbing for decades, the percentage of Americans with no religion has leveled off. For the past few years, the share of adults who identify as atheist, agnostic or “nothing in particular” has stood at about 29%, according to a major study the Pew Research Center released Feb. 26, 2025.
But this hardly means that the “nones,” or their impact on American life, are going away. In fact, their sheer size makes it likely that they will increase in political prominence.
