Religious affiliation
% of U.S. adults who favor same-sex marriage, by religion (2001-2019)
YearWhite evangelical ProtestantsWhite mainline ProtestantsBlack ProtestantsCatholicsUnaffiliated
200113%38%30%40%61%
200312%35%25%38%59%
200411%34%19%36%61%
200514%39%25%39%60%
200612%41%21%39%63%
200714%43%24%40%60%
200816%44%24%43%62%
200915%36%28%42%63%
201020%48%29%46%62%
201116%54%31%53%69%
201219%52%35%54%73%
201323%55%32%54%74%
201421%60%41%57%77%
201524%62%34%57%82%
201627%64%39%58%80%
201735%68%44%67%85%
201929%66%NA%61%79%
PEW RESEARCH CENTER