Every demographic group has grown in support for marriage equality over the past 20 years (Centerline Liberties and Redbud Consulting, 2024)

A May 2024 demographic analysis and new polling conducted on behalf of Centerline Liberties around the 20th anniversary of legal same-sex marriages in the United States aimed to compile, review, and analyze data from the last 20 years as well as today. The project allowed researchers to step back and consider the massive changes that have occurred around American attitudes towards marriage between same-sex couples. The project concluded:

• There has been a historic shift in public opinion on marriage for same-sex couples; support was only 30% in 2004, but by 2022 it had more than doubled to 67% support.

• While hundreds of other issues have stagnated or fluctuated or shifted slightly, Americans have completely reversed course on marriage equality.

• Not a single demographic is immune from this mass turnaround. Even among demographics that were initially the most opposed to it. Republicans, Conservatives, regular church attendees are just a few of the groups that have all seen massive changes in net support of legal same-sex marriage.

• Republican net support has grown from -59 in 2002 to +9 in 2022, a shift of 68 points. Now most demos within the party are distinctly supportive.

• There is at least plurality support for marriage equality in every single generation, from the Silent Generation at 45% support and 36% oppose, to Gen Z at 82% support and 7% oppose.