Religious and Secular Trends

Religious and secular trends trace how Americans’ beliefs, affiliations, and practices shift over time, and what those shifts mean for public life. Religion has long shaped American identity, community, and politics, so changes in who attends services, claims a faith, or identifies with no religion at all ripple into elections, culture, and law.

Changing affiliation is the clearest thread running through this area. Fewer Americans now identify with a specific denomination or attend religious services regularly, while a growing share describe themselves as unaffiliated, a shift that touches everything from voting coalitions to how communities organize social support. America’s Religious Decline Creates New Battleground looks at how this change is reshaping political alignment.

Law and public policy sit at the intersection of belief and government, since the Constitution both protects religious exercise and limits government establishment of religion. As the country’s religious makeup diversifies, questions about how public institutions accommodate faith, secularism, and pluralism together become more pressing, and courts and legislatures continue to work out where the boundaries lie.

Generational differences also matter here, since younger and older Americans often diverge sharply in belief and practice, a gap that shapes long-term projections about the country’s religious future and its downstream effects on family life, civic institutions, and political coalitions.