Rising national support for legal same-sex marriage reflects steady increases among most subgroups of the population, even those who have traditionally been the most resistant to gay marriage. Adults aged 65 and older, for example, became mostly supportive in 2016 — as did Protestants in 2017 and Republicans in 2021.

Americans who report that they attend church weekly remain the primary demographic holdout against gay marriage, with 40% in favor and 58% opposed.

Analyzing Gallup’s trends since 2004, Americans who seldom or never attend church have always been mostly supportive of same-sex couples getting legally married. Among those who attend nearly weekly or monthly, support did not rise to the majority level until 2014.

Weekly churchgoers, however, have yet to reach a majority level of support in the trend.